TW202341949A - Device for heating corneas - Google Patents

Abstract

To provide a cornea heating device that is capable of safely, directly, and effectively casting heat on the corneas by directional heat radiation or heat transfer without interfering with vision (in particular, field of view). A device (1) for relieving pain and/or ameliorating dry eye by heating corneas (20) with heating elements (12). The heating elements (12) are each at least one selected from: a resistive heating element (12A) and a heat transfer body (13); and an infrared radiation element (12B). The heating elements (12) are each configured to be disposed apart from the corneas (20) by a distance (L) of 10-60 mm, at positions (A) forward but also downward of the respective corneas, positions (B) lateral to said down-forward positions, or positions (B) lateral to the respective corneas (20). The cornea heating device (1) is of a type selected from among: an eyeglass type (1A) provided to eyeglasses used everyday; an attachment eyeglass type (1B) that can be attached to eyeglasses used everyday; functional, AR, VR and MR goggle types (1C); an eye-front-cover type (1D); and an ear-hooked type (1E).

Description

A device that warms the cornea

The present invention relates to a device for warming the cornea. In further detail, it is about reducing pain, improving and treating dry eyes through safe and directional heat radiation that does not impede vision (especially field of view) and directly and effectively reaches the cornea to warm it. Symptom device (corneal warming device).

There have been various proposals for installing heating mechanisms in glasses. For example, Patent Documents 1 and 2 propose glasses with an anti-fogging function. The glasses disclosed in Patent Document 1 are intended to prevent fogging when moving from outside to inside, etc. in situations where the temperature and humidity are different. The glasses in Patent Document 2 are anti-fogging systems for protective glasses that can effectively prevent the protective glasses from fogging regardless of weather conditions. They have a heating system, and the heating system is equipped with a heating element, a heating control circuit, etc.

In addition, Patent Documents 3 and 4 propose spectacle-type devices for improving dry eye syndrome. The treatment cover of Patent Document 3 has a heating means and a means for saturating the contained air with water vapor on the face. This prevents evaporation from the eyes and eyelids and improves heat transfer to the covered tissue. When used, , can prevent condensation and maintain clear vision at all times. The spray device of Patent Document 4 is a device that supplies a mist containing at least a minute liquid, and includes a spray element that sprays a mist containing a minute liquid to a local area, and a spray element that sprays a mist containing at least a minute liquid. Heating elements for mist heating can be used to supply mist containing at least minute liquid to the eyes to reduce symptoms of dry eye disease, administer medication, prevent allergies, relax muscles, etc.

In addition, patent document 5 proposes heated glasses, which can easily control the heating and allow simple treatment with the eyes open. The heated glasses include: a cover, which contains a heating device that can increase the temperature of the eyelids and inner surfaces of the eyes; and a fixing device, which is used to fix the lenses of the colored glasses so that the cover is placed in close contact with the eyes. Since the heated glasses are annular in shape and only heat the eyelids, they have the advantage of not easily affecting the cornea and eyeballs (paragraphs 0038 and 0039 of the same document). [Prior technical literature] [Patent Document]

[Patent Document 1] Japanese Patent Application Publication No. 3-27014 [Patent Document 2] Japanese Patent Application Publication No. 2017-40930 [Patent Document 3] Japanese Patent Publication No. 2005-515026 [Patent Document 4] WO2018/221687 [Patent Document 5] Japanese Patent Application Publication No. 11-221247

[Problem to be solved by the invention]

In recent years, in daily life, the opportunity to view and listen to a large number of still pictures and animations through portable terminals has increased. Also at work, regardless of the type of work, there are more opportunities to watch a large number of still pictures and animations, resulting in a situation where the eyes have to be overtaxed (see Figures 13 and 14). Moreover, lifestyles have also diversified, resulting in many modern people living a life that is far different from the pace of life in the past. In such a social life, if the eyes are constantly overworked and the fatigue of the eyes is not relieved or resolved, various burdens may be placed on the eyes and body, which may have a negative impact.

Based on this background, the present inventor examined the subject of warming the eyes while conducting research on the eyes. It was found that instead of heating the entire eye and eyelids, it is better to directly warm the cornea, which is more effective in making the eyes and body feel relaxed and comfortable. In particular, during the review process, it was found that the cause of discomfort such as increased blinking is related to the influence of pain receptors present in the cornea. By directly warming the cornea, it is possible to reduce the pain receptor stimulation and the sensation. Relax and comfortable. And it was found that as long as the cornea is directly heated, it has the effect of improving and treating the symptoms of dry eye syndrome. Therefore, appropriate warming of the cornea is necessary.

However, although there are products on the market that warm the eyes with steam, eye-warming products that allow the eyes to rest while working, glasses-type products with vibration and temperature sensing functions, etc., these products can only be used to warm the eyes. Warming the periphery and the entire eye makes you feel relaxed, but the cornea cannot be warmed directly. Moreover, the technologies proposed in Patent Documents 1 to 4 aim at preventing fogging and improving dry eye syndrome, and have a heating element that evaporates water to control the humidity near the eyes. However, this heating element only evaporates water. Evaporation increases or decreases humidity and cannot directly warm the cornea. Furthermore, the technology proposed in Patent Document 5 only warms the eyelid portion without affecting the cornea and eyeball, so it cannot directly warm the cornea.

The present invention does not propose a new technology that warms the periphery of the eye or the entire eye as proposed by the previous technology, but proposes a new technology that directly warms the cornea. Its purpose is to provide a safe and efficient method that does not impede vision (especially the field of view). A device that radiates directional heat to directly and effectively reach the cornea and warms the cornea to relieve pain (hereinafter also referred to as "corneal warming device"). [Technical means used to solve problems]

(1) The cornea heating device of the present invention is a device that uses a heating element to warm the cornea to relieve pain and/or improve dry eye syndrome. The aforementioned heating element is made from a resistance heating element, a resistance heating element and a heat transfer element. Select one or two or more types from the body, and an infrared radiation element, and the aforementioned heating element is arranged at: a position below the front of each of the corneas, a position to the side below the front, or a side of each of the corneas. position, and the distance from the aforementioned cornea is no less than 10 mm and no more than 60 mm.

According to the present invention, there is an element for relieving pain and/or improving dry eye syndrome by heating the cornea with a heating element. The heating element uses a resistive heating element, a resistive heating element and a heat transfer body, and infrared radiation. Select 1 or 2 or more types of components. When the heating element is a resistance heating element, or a resistance heating element and a heat transfer body, the resistance heating element itself or the heat transfer body that radiates heat generated by the resistance heating element is disposed on each part of the cornea: The position below the front, the position to the side below the front, or the position to each side of the cornea, and the distance from the cornea is not less than 10 mm and not more than 60 mm, so the heat radiated from the heating element is directional. Radiating toward the cornea without being blocked by the eyelids, the heat can reach the cornea directly and effectively to relieve corneal pain and improve and treat dry eye syndrome. Especially in the case of an infrared radiation element that emits infrared rays, there must be no obstacle that blocks the infrared rays between the infrared radiation element and the cornea, and it must not be blocked by the eyelids. The cornea can be directly and effectively heated to reduce corneal pain. and improve and treat dry eye syndrome. Moreover, the present invention is different from the heating part in Patent Document 5, which is in contact with the periphery of the eye and can only heat the periphery of the eye but cannot warm the cornea. This is because the cornea can be heated by directional heat radiation. Direct and effective heating, so it can effectively relieve corneal pain and improve and treat dry eye syndrome. Furthermore, unlike the conventional technology, the heating part is not brought into contact with the skin around the eyes for heating, so there is no need to worry about burns. Furthermore, because the degree of corneal heating can be easily adjusted by controlling the set output, the cornea can be warmed directly and effectively safely, naturally reducing corneal pain and improving and treating dry eye disease as needed. Symptoms. In particular, it is used as a new device that can reduce corneal pain and improve and treat dry eye syndrome in daily life, work or entertainment. Furthermore, since it can be used as an eye treatment device in a medical environment, it can be used as a new medical machine for treating eyes in daily life and work.

Especially for corneal pain, by heating the cornea, the pain of the cornea can be reduced, so the time for opening the eyes without blinking can be increased (also called "eye opening time"), which can relieve and resolve the pain in the eyes. fatigue, eye and body discomfort. Moreover, even if it is sensitive, the cornea will not feel pain, and the eyes will become comfortable, and you can feel relaxed and comfortable. Furthermore, regarding dry eye syndrome, by warming the cornea, symptoms of dry eye syndrome such as glare, eye congestion, eye pain, blurred eyes, and blurred vision can be improved. The type of the cornea heating device can be glasses for daily use, glasses accessories that can be installed on glasses for daily use, or functional goggles or eyecup types. Different from those in the art, it can be It can be used with the eyes open without obstructing the field of view, because it is not heated with the eyes closed as is conventionally done. It is heated with the field of view restricted. Only the eyelids are heated and the cornea is not heated. Regardless of whether people wear glasses or not, they can wear them for daily life, work or entertainment. By directly and effectively warming the cornea, they can reduce corneal pain, improve and treat dry eye syndrome.

In the corneal warming device of the present invention, the type of the corneal warming device can be: a glasses-type device that can be used as glasses for daily use; an accessory-type device that can be installed on glasses for daily use; functional, AR Goggle-type devices for VR and MR; goggle-type devices; or earhook-type devices.

According to the present invention, by making various types of devices as mentioned above, it can be used as a new device to reduce corneal pain and improve and treat dry eye syndrome in daily life, work or entertainment. Among these, in the case of a spectacle-type device for daily use, the spectacles themselves for myopia, hyperopia, etc. can be used as a corneal warming device. Therefore, corneal pain can be reduced, and corneal dryness can be improved and treated in daily life and work. Eye disease. Furthermore, in the case of an accessory-type device that can be installed on daily-use glasses, by forming a component different from that of daily-use glasses, it is possible to reduce pain and treat dry eye disease by heating the cornea only. When the situation changes, accessory devices are installed on glasses to relieve corneal pain, improve and treat dry eye syndrome. In addition, goggle-type devices and goggle-type devices for functional, AR, VR, or MR use can reduce cornea damage, for example, for preventing pollen and dust, for work, for sports, for games, for IT work, etc. Pain, improvement and treatment of dry eye syndrome. In addition, the earhook type device is a device with a simple structure and is easy to attach and detach. It can reduce corneal pain and improve and treat dry eye syndrome.

In the cornea heating device of the present invention, the aforementioned resistance heating element is preferably a metal, alloy or non-metallic material with resistance heating properties.

According to the present invention, because the resistance heating element is a metal, alloy or non-metallic material with resistance heating properties, the air heated by the resistance heating element can be directed toward the cornea from below, obliquely below or sideways, and the effect is transmitted and Warming the cornea to relieve corneal pain, improve and treat dry eye syndrome.

In the cornea warming device of the present invention, the resistance heating element is connected to or covered by the heat transfer body made of a metal or alloy with excellent thermal conductivity.

According to the present invention, because the resistance heating element is connected to or covered by the heat transfer body made of metal or alloy with excellent thermal conductivity, the heat generated by the resistance heating element can be widely distributed by the heat transfer body. convey. The air heated by the heat transfer body can be directly and effectively conveyed toward the cornea from below or obliquely below and warms the cornea to relieve corneal pain, improve and treat dry eye syndrome.

In the cornea warming device of the present invention, it is preferable that the infrared radiation element is an element that emits near infrared rays or an element that emits far infrared rays.

According to the present invention, the thermal energy of electromagnetic waves in near infrared rays (wavelength is about 780 nm to 3 μm) or far infrared rays (wavelength is about 3 μm to 1 mm) can heat the cornea through thermal radiation (radiation) to reduce corneal damage. Pain, improvement and treatment of dry eye syndrome again.

The corneal warming device of the present invention has a control device for controlling the aforementioned heating element. The control device is provided in the aforementioned corneal warming device for direct control, or through a wired communication element or a wireless communication element. controlled.

The corneal warming device of the present invention preferably has a water holding portion for holding water or an aqueous solution.

According to the present invention, since humidity can be provided between the cornea warming device and the eye, the cornea can be heated to relieve corneal pain, improve and treat dry eye syndrome, and provide moisture. The water retaining part is preferably a cloth or sponge soaked in water. Since such a cornea heating device can moisturize the cornea, it can also be used as a new medical machine to treat eyes in daily life, work or entertainment for the improvement and treatment of other eye symptoms.

In the cornea heating device of the present invention, in order to maintain the function of heating the cornea by the heating element and allow the user to use it safely, the aforementioned heating element has the function of not directly contacting the heating element and A defensive structure around the heated area.

According to the present invention, because of the above-mentioned defense structure, the user will not accidentally touch the heating element directly, so it can be used more safely.

In the corneal warming device of the present invention, a wave measuring device for measuring the potential obtained from the brain is connected to the control device, and the frequency of the potential measured by the brain wave measuring device is converted. If the spectrum after frequency conversion is 2 When all or part of the value in the range of ~5 Hz exceeds the reference, the control device is driven to warm the cornea by the heating element.

If all or part of the range of 2 to 5 Hz in the spectrum after frequency conversion exceeds the predetermined standard, the brain recognizes it as pain. Therefore, according to the present invention, 2 in the spectrum after frequency conversion exceeds the predetermined standard. When all or part of the range of ~5 Hz exceeds the predetermined standard, driving the heating element to warm the cornea can make the temperature equal to or lower than the normal value. As a result, pain improvement can be achieved.

(2) The corneal pain evaluation device of the present invention is equipped with an electroencephalogram measuring device that measures the potential obtained from the brain, and converts the frequency of the potential measured by the electroencephalogram measuring device. If the frequency spectrum after conversion is 2 to 5 Hz When all or part of the range exceeds the reference value, it is evaluated that corneal pain occurs. [Effects of the invention]

According to the present invention, through safe and directional heat radiation that does not impede vision (especially field of view), heat can be directly and effectively reached to the cornea, and the cornea can be heated to relieve pain, improve and treat dry eyes. disease. Through the present invention, a cornea heating device can be provided, which can not hinder vision (especially visual field) in daily life, work, entertainment, etc., can reduce eye pain, reduce or eliminate eye fatigue, etc. By directly heating the cornea instead of the periphery of the eyes and eyelids, it can reduce eye pain, reduce and eliminate eye fatigue, and discomfort in the eyes and body. Even if it is sensitive, you will not feel pain in the cornea. Your eyes become more comfortable and you can truly feel relaxed and comfortable. Furthermore, regarding dry eye syndrome, by warming the cornea, symptoms of dry eye syndrome such as glare, eye congestion, eye pain, blurred eyes, and blurred vision can be improved. This corneal heating device can be used as a new device to reduce corneal pain and improve and treat dry eye syndrome in daily life, work or entertainment. Furthermore, since it can be used as an eye treatment device in a medical environment, it can be used as a new medical machine for treating eyes in daily life and work.

The corneal warming device of the present invention will be described with reference to the drawings. The present invention is not limited to the following embodiments and examples, and can be modified in various aspects as long as the essence described in this application is included.

[Corneal warming device] The cornea heating device 1 of the present invention is shown in Figures 1 to 9, 15 to 18, and 19 to 24. The cornea 20 is heated by the heating element 12 to reduce pain and/or improve dryness. In the ophthalmic device 1, the heating element 12 is one or more selected from the resistance heating element 12A, the resistance heating element 12A, the heat transfer body 13, and the infrared radiation element 12B, and the heating element 12 is configured At a position A below the front of each cornea 20, a position B to the side below the front, or a position B to the side of each cornea 20, and a distance L of not less than 10 mm and not more than 60 mm from the cornea 20.

Various types of corneal warming device 1 include, for example, a spectacle-type device 1A (Fig. 1, Fig. 4, Fig. 1, Fig. 1, Fig. 4, Fig. 1 Figure 19, Figure 23); accessory-type device 1B that can be installed on glasses for daily use (Figure 15); goggle-type device 1C for functional, AR, VR or MR use (Figure 16); eye mask type device (not shown); or earhook type device 1D (Fig. 17), etc.

This cornea heating device 1 has a heating element 12 that warms the cornea 20 to relieve pain and/or improve dry eye syndrome. The heating element 12 can be used from: resistance heating element 12A, resistance heating element 12A Select one or two or more types from the heat transfer body 13 and the infrared radiation element 12B. When the heating element 12 is the resistance heating element 12A or the resistance heating element 12A and the heat transfer body 13, the resistance heating element 12A itself or the heat transfer body 13 radiates the heat generated by the resistance heating element 12A. It is arranged at a position below the front of each cornea 20, a position lateral below the front, or a position lateral to each cornea 20, and is away from the cornea 20 by a distance of not less than 10 mm and not more than 60 mm, so it is separated from the heating element 12 The radiated heat is directed towards the cornea and reaches the cornea 20 directly and effectively without being blocked by the eyelids, thereby alleviating the pain of the cornea 20 and improving and treating dry eye syndrome. Especially in the case of the infrared radiation element 12B that emits infrared rays, there must be no obstacle that blocks the infrared rays between the infrared radiation element 12B and the cornea 20. Therefore, the cornea 20 can be directly and effectively emitted without being blocked by the eyelids. Heating can relieve the pain of cornea 20, improve and treat dry eye syndrome. Moreover, the present invention is different from the heating part in Patent Document 5 which only contacts the periphery of the eye and warms the periphery of the eye but cannot warm the cornea 20 because it can heat the cornea 20 by directional heat radiation. The cornea 20 is directly and effectively heated, so the pain of the cornea 20 can be effectively reduced, and dry eye syndrome can be improved and treated. Moreover, since the heating part is not brought into contact with the skin around the eyes to heat the skin as in the conventional technology, there is no need to worry about burns. Furthermore, since the degree of warming the cornea 20 can be easily adjusted by setting the output control, the cornea 20 can be warmed directly and effectively safely, and the pain of the cornea 20 can be naturally relieved, improved, and treated as needed. Symptoms of Dry Eye Syndrome. In particular, it can be used as a new device to reduce pain in the cornea 20 and improve and treat dry eye syndrome in daily life, work or entertainment. Furthermore, since it can be used as an eye treatment device in a medical environment, it can be used as a new medical machine for treating eyes in daily life and work.

Especially regarding the pain of the cornea 20, since the cornea 20 can be warmed by the cornea heating device 1 of the present invention to reduce the pain of the cornea 20, the time for opening the eyes without blinking (also called "opening") can be increased. "Eye Time") can reduce and eliminate eye fatigue, eye and body discomfort. Moreover, even if it is sensitive, you will not feel pain in the cornea 20, your eyes will become comfortable, and you will feel truly relaxed and comfortable. Furthermore, regarding dry eye syndrome, by warming the cornea, symptoms of dry eye syndrome such as glare, eye congestion, eye pain, blurred eyes, and blurred vision can be improved. The corneal warming device 1 can also be made into a type of glasses for daily use, a type of accessory that can be installed on glasses for daily use, or a type of goggles for functional and gaming purposes, The type of eye mask or ear hook type is different from the conventional ones. It can be used with the eyes open without obstructing the field of vision. This is because it is not like the conventional method of heating with the eyes closed, which limits the field of vision. For those who are in a state of warming, the cornea 20 cannot be heated and only the eyelids can be heated. Therefore, regardless of whether people wear glasses or not, they can install the cornea heating device 1 in daily life, work or entertainment, etc. By directly and effectively warming the cornea 20, the pain of the cornea 20 can be reduced, and dry eye syndrome can be improved and treated.

Describe each component in detail. Hereinafter, the spectacle-type cornea warming device 1A will be described in sequence with reference to FIGS. 1 to 9 , 13 , 14 , etc. as a representative example.

In each of the following aspects, the symbol The up and down direction (vertical direction) of the corneal warming device 1A after wearing it. Hereinafter, "the position A below the front of the cornea" means the position below the dotted line Z1 extending horizontally in the front direction of the cornea 20 when the body and head are facing the front and the eyeballs are looking front. The "position B on the side below the front" is located on the side of the position A (the lower side of the cornea 20) on the dotted line Z2 extending horizontally from the position A of the "front below" to the side in the left-right direction. location means. The "side position B of the cornea" is slightly different from the above-mentioned "side position B below the front surface of the cornea" and extends horizontally in the left-right direction (in other words, the "transverse direction") of the side of the cornea 20 The dotted line means the position directly to the side of the cornea 20 . In addition, for the "side position B of the cornea", the same symbol B as described above is used for convenience. These will be explained in detail in the "Heating element installation position" column described later. In addition, when they are called "upper", "lower", "upper", and "lower", they are called "horizontal", "right", "left", and "sideways" based on the up-down direction Y. In this case, the horizontal direction X is used as the reference.

(Glasses-type corneal warming device) The glasses-type cornea heating device 1A (hereinafter referred to as the "glasses-type device 1A") is a pair of glasses that can be used in daily life and work. The basic structure of the glasses-type device 1A is shown in Figures 1 and 4. It generally has: a light-transmitting lens 2, a frame 3 (the part that fixes the lens), an armor 4 (the two end parts of the glasses connected from the frame 3 to the temples 6), a hinge 5 (that connects the frame 3 and the temples 6) 6), temples 6 (the part that supports the glasses), ear hooks 7 (the parts that hang on the front ears of the temples 6), nose pads 8 (the parts that hold the nose from both sides and support the glasses) part), bridge 9 (the part connecting the left and right lenses), etc. The type of the glasses-type device 1A is not limited to these. It may be a fashionable and individual glasses type, any part of those components may be omitted, and the shape may be large or small. In the spectacle-type device 1A, for example, although the hinge 5 is usually present, when the protruding portion 3a is large as shown in Figs. When hinge 5 is not provided.

Among glasses, there are special glasses-type devices that can only be used for eye treatment in treatment rooms such as hospitals. There are: closed goggle-type glasses for treatment that make it difficult to leave a gap between the glasses and the face; And therapeutic glasses that are only used for eye treatment. However, the glasses-type device 1A is not the special glasses as shown in FIGS. 1 and 4 , but is preferably an open-type glasses-type device 1A that can be generally used and worn daily. By applying the features of the present invention to the glasses-type device 1A with such a general structure or a structure close to this, it can be used in various situations such as daily life and work, and can also be used as a device in a medical environment. Eye treatment device. Therefore, regardless of whether people wear glasses or not, it can be used as a new medical machine to treat eyes in daily life and work, allowing more people to enjoy the effect of the present invention (heating the cornea 20 to achieve Reduces pain in the cornea 20 Relaxes and comforts and/or improves and treats dry eye syndrome).

The lens 2 may be made of glass or plastic as long as it has light transmittance. The "light transmittance" is to make it clear that vision is not hindered like traditional therapeutic and procedural glasses. Further, this is to emphasize that it can be used in daily life. In addition, lenses that can block desired wavelengths may be used, lenses that correct myopia, hyperopia, or blurred vision may be used, lenses that are uncorrected may be glass, and tinted lenses such as sunglasses may be used.

The material of each part of the glasses-type device 1A, such as the frame 3, the armor 4, the hinge 5, the temples 6, the ear hooks 7, and the nose pads 8, may be made of resin, metal, or other materials, and is not particularly limited. limit. Furthermore, glasses may be made of different materials in each part. Those made of resin are preferred with good formability and processability. Furthermore, transparent (including colorless transparent or colored transparent), colored opaque or translucent may be used. In addition, since each of these parts has a different area according to the style design of the glasses, when the constituent elements of the present invention are applied to such glasses, as will be described later, the heating element 12 ( The resistance heating element 12A and the infrared radiation element 12B) are not provided on the frame 3 with a small installation area, but are provided in parts with redundant installation area (the armor 4, temples 6, etc.), so that the entire glasses can be slimmed down.

As shown in FIGS. 1 and 4 , this glasses-type device 1A has a structure in which the heating element 12 and the like are integrally mounted on glasses for daily use. On the other hand, the glasses for daily use may be used, and only the heating element 12 and the like may be made into detachable parts (also called accessories) and mounted on the glasses. Specifically, for example, as shown in FIG. 15 , an accessory-type device 1B that can be attached to and detached from glasses for daily use may be used. The earhook-type corneal warming device 1D shown in FIG. 17 is provided with a heating element at its front end. The temperature element 12 and the like may be detachably attached to the lower frame 3b and the lateral frame 3d of glasses that are used daily (not shown). In this way, when the cornea 20 is to be heated, the glasses that are usually used can be easily attached and detached, and the same effect as the glasses-type device 1A can be achieved. In addition, an accessory means that it can be detachably attached to the glasses that are usually used for use.

In addition, as shown in FIG. 15, the accessory type device 1B is attached and detached to ordinary glasses for use, so the resistance heating element 12A, the infrared radiation element 12B, and the water holding part 16 described later can be made larger because they are Will not cover your usual glasses. Reference numeral 31 denotes an attachment portion for attachment to glasses for daily use. Specifically, the attachment type is not particularly limited. Similar to other functional accessory devices on the market, various means can be applied. In addition, the radiation from the resistance heating element 12A and the infrared radiation element 12B, which will be described later, will not be blocked by the presence of glasses, so the accessory device 1B can be made into a larger shape, for example, the lower side frame is enlarged. 3b, the width of the upper side frame 3c, the armor 4, etc., makes it possible to cover the shape of ordinary glasses.

(control device) The control device 11 controls the heating element 12 . The heating element 12 is controlled by the control device 11 to operate. As a result, the temperature of the cornea 20 can be adjusted to a safe and appropriate temperature, and the cornea 20 can be easily warmed. Through such control, the cornea 20 will not feel pain, eye fatigue, eye and body discomfort can be reduced or eliminated, and the user can truly feel relaxed and comfortable. Furthermore, by warming the cornea, the causes of dry eye symptoms such as glare, eye congestion, eye pain, blurred eyes, and blurred vision can be improved. The control device 11 is provided with a circuit that controls the heating element 12 based on electric power supplied from a power source. The current can be controlled based on the voltage controlled by the circuit. When the heating element 12 is the resistance heating element 12A, it can be arbitrarily controlled by its resistivity. When the heating element 12 is the infrared radiation element 12B, it can be controlled arbitrarily. It can be arbitrarily controlled according to the voltage and current characteristics of the infrared radiation element 12B. In addition, the power supply may be a small battery installed in the glasses (for example, the temples 6, etc.), or the power may be supplied by connecting the glasses to the glasses through wires.

It does not matter which position the control device 11 is provided on the glasses-type device 1A. When the glasses-type device 1A has a wired communication component for wired control of the heating element 12, the control device 11 is preferably installed at a location other than the frame 3 (for example, the temples 6, etc.), and is installed in a wired connection. A pocket or a part of the body or clothing will work too. Furthermore, when the glasses-type device 1A has a wireless communication element for wirelessly controlling the heating element 12, the control device 11 may be provided outside the glasses. In addition to the glasses, for example, a control application software (also referred to as the control device 11 in this case) is installed in a mobile terminal such as a smartphone, and the application software is operated to control.

When the control device 11 controls the resistance heating element 12A and the infrared radiation element 12B, it is estimated in advance how much voltage can be applied and how much the cornea 20 can be heated based on safety. The applied voltage may be set based on the result of the temperature sensor 14 , the applied voltage may be set based on the signal from the temperature sensor 14 , or it may be set by other temperature control methods. Moreover, a specific example of the use state of the control device 11 is preferably, for example, stage control in which the output can be increased for 5 minutes and then weakened during operation, or the output can be set by a timer for 10 minutes and then be turned off (OFF). Output ground conduction (ON)/off (OFF) control, etc.

When the eyeglass-type device 1A is provided with a water retaining portion 16 to be described later, that is, when a structure for providing humidity is included between the eyeglass-shaped device 1A and the cornea 20, the control device 11 described above is provided with a function for evaporating the moisture in the water retaining portion 16. The function of driving an element (resistance heating element 17 or ultrasonic vibrator, etc.) is also possible. The driving of such elements may be performed by the above-mentioned control device 11, or may be performed by a different control device (not shown).

(Heating element: Resistance heating element) The resistance heating element 12A is shown in Figures 1 to 3 and 24. A general resistance heating element can be used and is controlled by the control device 11 to emit heat. The resistive heating element 12A controls current to flow to the resistive heating element 12A, and uses its Joule heat to warm the air near the resistive heating element. The cornea 20 can be heated by conducting the heat of the heated air. In the resistance heating element 12A, the degree of heating (the degree of temperature) can be easily controlled by voltage control. The material of the resistance heating element 12A is preferably a metal, alloy or non-metal material with resistance heating properties. Such resistance heating element 12A is preferably made of iron, chromium, aluminum, nickel, chromium, molybdenum, tungsten, alloys thereof, silicon carbide, carbon, or the like. These various materials have resistivities corresponding to the respective materials (for example, the resistivity of copper at 20°C: 2.28×10 ^-8 Ω).

Although the type of the resistance heating element 12A is not particularly limited, considering workability and ease of installation, it may be a linear resistance heating metal wire, a foil-type resistance heating foil or a pattern, a sheet-like resistance heating sheet, or a sheet pattern. Better shape. The wire diameter, size, thickness, etc. are naturally designed according to the type of heat generation and installation location, so it is better to choose the appropriate type.

The resistance heating element 12A is directly installed on the spectacle device 1A. When the surrounding air is heated by the heating of the resistance heating element 12A itself, the air can effectively warm the cornea 20 . Furthermore, as shown in FIGS. 1 , 2 and 7 , the heat transfer body 13 is connected to the resistance heating element 12A, and it is preferable that the resistance heating element 12A is covered by the heat transfer body 13 . In this way, heat is transmitted through the heat transfer body 13 and the surrounding air is warmed. The air can effectively warm the cornea 20 . Among them, the resistance heating element 12A is preferably used to heat the surroundings through the heat transfer body 13. From the perspective of effectively realizing heating, as shown in FIGS. 1, 2 and 7, the resistance heating element 12A is closest to the cornea 20. It is preferable to provide the heat transfer body 13 on the lower frame 3b. Furthermore, the heat transfer body 13 only needs to be provided on the lower frame 3b, but it may be provided on other locations (upper frame 3c, lateral frame 3d, etc.) together with the lower frame 3b.

FIG. 7 is a schematic diagram showing a state in which the cornea 20 is heated by the heat transfer body 13 provided on the lower frame 3b. The heat generated by the resistance heating element 12A is transmitted to the heat transfer body 13 provided on the lower side frame 3b, so that the heat transfer body 13 is heated. The air heated by the heated heat transfer body 13 is conveyed toward the direction D1 of the cornea 20 as shown in FIGS. 7(A) and (B), and can effectively warm the cornea 20. In order to effectively heat the cornea 20, as shown in Figs. 2 and 7, it is necessary to locate the heat transfer body 13 as close as possible to the cornea 20 (the diameter of the cornea is about 11 mm), that is, the lower frame 3b. The distance L from the heat transfer body 13 to the cornea 20 is about 10 to 60 mm, preferably about 20 to 25 mm. Compared with the case where it is provided at other parts of the frame 3 (the upper frame 3c, the lateral frame 3d) , the distance to the cornea 20 is the closest. By arranging the heat transfer body 13 in the lower frame 3b closest to the cornea 20 at the distance L, the output of the heating control can be reduced compared to the case where it is disposed at a farther position (for example, the upper frame 3c and the lateral frame 3d). When used most efficiently, power saving, safety and controllability can be improved at the same time.

Figure 7 shows a dotted line C when viewed from the front. Especially when working on a personal computer, the dotted line C is tilted downward because the face is facing downwards. This includes the visual field range α of the screen and the visual field range β of the keyboard. to work (refer to Figure 13 and Figure 14). When you look down at the screen and keyboard below, your eyelids will feel more closed than when looking from the front. Therefore, compared with the case where the heat transfer body 13 is provided on the upper side frame 3c and the lateral side frame 3d, if the heat transfer body 13 is provided on the lower side frame 3b, it can be directly and effectively removed from below the lower side frame 3b. Cornea 20 warmed. In addition, the symbol D1 in FIG. 7 shows the direction from the heat transfer body 13 to the cornea 20, and the symbol C shows the dotted line connecting the spectacle lens 2 and the cornea 20 when viewed from the front.

The heat transfer body 13 is preferably one with good thermal conductivity, for example, a foil or sheet made of copper or copper alloy, a foil or sheet made of aluminum or aluminum alloy, or other metal or sheet with good thermal conductivity. Foils or sheets made of alloy are preferred.

When the resistance heating element 12A is, for example, a linear resistance heating element 12A, a copper foil provided with an adhesive layer may be used as the heat transfer body 13 to sandwich the linear resistance heating element 12A and bond it to the lower frame 3 b. , the linear resistance heating element 12A may be integrally formed with the resin lower frame 3b, or the foil-shaped or sheet-shaped heat transfer body 13 may be bonded to the integrally formed one. The thickness and size (vertical and horizontal) of the foil and sheet are not particularly limited, as long as the shape can be bent and bonded to the lower frame 3b. The thickness of the heat transfer body 13 may be from a few microns to several hundred microns. The lateral width of the heat transfer body 13 should be the same as the length of the lower frame 3b, that is, 3 to 5 cm. The depth of the heat transfer body 13 should be a depth that can fit the lower frame 3b. The lower side The depth of the frame 3b should be approximately 50% to 80%.

As shown in FIGS. 23 and 24 , the heat transfer body 13 may not be used and only the resistance heating element 12A may be used. In this case, it is preferable that the heat transfer body 13 is not provided on the lower frame 3 b or the like so that the skin does not feel hot even if it is touched. The characteristic point of the glasses-type device shown in Figures 23 and 24 is that it is provided with a protective structure and does not have a heat transfer body on the lower side frame 3b, but has a resistance heating element installed at a side position directly transverse to the cornea. 12A warms the cornea from the vicinity and prevents the user from accidentally touching the resistance heating element 12A. This point is at a position behind the side of the resistance heating element 12A as shown in FIGS. 1 to 3 And the heating modes are different by the heat transfer body 13 that transfers heat from the resistance heating element. Such a protective structure, because the heating element 12 (such as the resistance heating element 12A) can maintain the function of warming the cornea 20 and can be used safely by the user, does not directly contact the heating element 12 and its surroundings. The defensive structure of the heating part. The cornea heating device of the present invention preferably has such a defensive structure. For example, it is preferable that all parts other than the opening of a size such that the fingertips cannot directly contact the heating element 12 are made into a protective structure. In addition, "the lateral position of the cornea directly transversely" is slightly different from the above-mentioned "side position B below the front of the cornea" and is in the left-right direction toward the side of the cornea 20 (in other words, the "positive lateral direction" ) means the position on the horizontally extending dotted line. Specifically, in a glasses-type device, as shown in Figures 23 and 24, it means the distance between the armor or the side frame on the armor side, which is close to the eyes.

(Heating element: infrared radiation element) The infrared radiation element 12B, as shown in FIGS. 4 to 6 , is controlled by the control device 11 to radiate infrared rays in the direction D2 of the cornea 20, which is the object to be irradiated, and to warm the cornea 20 by the radiation. This infrared radiation element 12B, as shown in FIGS. 4 to 6 and 8 , is preferably located at a position where the radiated infrared rays can easily reach the cornea 20 and can be pointed in a direction D2 (see FIG. 8 ) in which it can easily reach the cornea 20 . Specifically, it is preferable to dispose it on the lower frame 3b (see FIG. 4). However, since the infrared radiation element 12B has not been sufficiently miniaturized, it is disposed on the armor 4 (see FIGS. 5 and 6) where the installation space can be ensured or 3d horizontal borders are better.

As the infrared radiation element 12B, a near infrared radiation element (LED with a wavelength of approximately 780 nm to 3 μm) or a far infrared radiation element (LED with a wavelength of approximately 3 μm to 1 mm) can be used. The output of any of these components can be easily controlled by voltage. An example of a small, low-power near-infrared radiation element that can emit near-infrared rays is an LED. Furthermore, a small, low-power far-infrared radiating element capable of radiating far-infrared rays can be used. In addition, although small and low-power far-infrared ray emitting elements that can emit far-infrared rays are not yet on the market, it is better to use those that can achieve miniaturization and low power. The thermal energy of electromagnetic waves radiated from these elements warms the cornea 20 by thermal radiation (radiation).

The infrared radiation element 12B is preferably provided in the lower frame 3b or the lateral frame 3d or the armor 4 in the frame 3. Similar to the description of the heat transfer body 13 above, when working on a personal computer, since the face is looking down at the screen and keyboard below, the eyelids feel more closed than when viewed from the front. Therefore, compared with the case where the infrared radiation element 12B is provided on the upper frame 3c, by providing the infrared radiation element 12B on the lower frame 3b, it is possible to directly and effectively emit radiation from below the position of the lower frame 3b toward the direction D2 of the cornea 20. Emit infrared rays. Furthermore, when it is impossible to prepare a small infrared radiation element 12B, by installing the armor 4 (refer to FIGS. 5 and 6 ) or the lateral frame 3d where the installation space can be ensured, it can be removed from the positions of the armor 4 and the lateral frame 3d. The side of the cornea 20 radiates infrared rays directly and effectively toward the direction D2 of the cornea 20 . Moreover, the symbol D2 in FIG. 7 shows the direction from the infrared radiation element 12B to the cornea 20.

The distance L from the lower frame 3b to the cornea 20 is approximately 10 to 60 mm, preferably approximately 20 to 25 mm. The distance L from the armor 4 or the lateral frame 3d to the cornea 20 is also approximately the same, and is approximately the same as the distance L between the lower frame 3b and the cornea 20. For example, the distance to the cornea 20 can be shortened compared to the case of the upper frame 3c. By arranging the infrared radiation element 12B at a distance L close to the cornea 20, compared with the case of arranging it at a distant position (for example, the upper frame 3c), the infrared ray output can be utilized most efficiently, and power saving and Safety and control are both improved.

Although the output and the number of the infrared radiation elements 12B are not particularly limited, the output and the number of the infrared radiation elements 12B that can warm the cornea 20 are preferred. In the type examples shown in FIGS. 5 and 6 , three infrared radiation elements 12B are installed on the armor 4. However, as in the experiment described later, three, four, five or more may be used. A location that is easily accessible to the cornea 20 and a direction in which the cornea 20 can be reached are preferred. The infrared radiation element 12B does not heat the air by heat conduction like the resistance heating element 12A, so the heat transfer body 13 is not required.

(Temperature sensor, temperature and humidity sensor) The temperature of the cornea 20 can be measured by the temperature sensor 14 . The temperature sensor 14 may be, for example, a contact temperature sensor 14 (also denoted by 14) that indirectly measures the temperature of the air between the spectacle device 1A and the cornea 20, or a contact temperature sensor 14 that directly measures the temperature of the cornea 20 without contact. The non-contact temperature sensor 14B. The contact temperature sensor 14 can be, for example, a thermocouple, a temperature measuring resistor or a thermistor. The contact temperature sensor 14 cannot directly contact the cornea 20 for measurement, but can measure the temperature of the air between the spectacle device 1A and the cornea 20 . The non-contact temperature sensor 14B can be, for example, a radiation thermometer. The principle of the radiation thermometer is to sense infrared rays emitted from an object and measure the temperature from the amount of radiation. Therefore, the surface temperature of the cornea 20 can be measured.

Since the resistance heating element 12A heats the air and the cornea 20 is heated by the air, the contact temperature sensor 14 only needs to be provided at a position where the temperature between the spectacle device 1A and the cornea 20 can be measured. To what extent the cornea 20 is heated, the approximate temperature can be estimated by measuring the temperature of the air near the cornea with the contact temperature sensor 14 . The contact temperature sensor 14 is provided at an appropriate position on the frame 3, spectacle temple 6, bridge 9 or armor 4. On the other hand, the surface of the cornea 20 may be directly measured by the non-contact temperature sensor 14B. When using the non-contact temperature sensor 14B, it is preferable to set it at a position where the infrared rays emitted from the non-contact temperature sensor 14B are easily irradiated to the cornea 20 (specifically, the upper frame 3c and the lower frame 3b).

The infrared radiation element 12B uses the heat energy of the radiated electromagnetic wave to heat the cornea 20 through thermal radiation (radiation). Therefore, to what extent the cornea 20 is heated is not easy to know from measuring the temperature of the air. Therefore, it is better to measure the surface temperature of the cornea 20 with the non-contact temperature sensor 14B, that is, a radiation thermometer. When the non-contact temperature sensor 14B is not provided, the non-contact temperature sensor 14B can be omitted by confirming in advance the relationship between the voltage applied to the infrared radiation element 12B and the temperature at that time.

The humidity sensor is used to measure the humidity between the spectacle device 1A and the cornea 20, and can be set as needed. The humidity sensor may be a temperature and humidity sensor integrated with the temperature measurement, or a separate humidity sensor may be provided. By measuring the humidity between the spectacle device 1A and the cornea 20 with a humidity sensor, the moisturizing state of the cornea 20 can be evaluated. Especially when both heating and humidification are performed, the cornea 20 is in a warmed and moistened state because the temperature and moisture are compatible, so the cornea 20 is in a state close to a sauna (also called "eye sauna"). "), it can further reduce and eliminate eye fatigue, eye and body discomfort, and make the eyes feel more comfortable. There will be no pain in the cornea 20, and you can feel more relaxed and comfortable. Moreover, it can improve and treat dry eyes and adjust the moisturizing status.

(Water Conservation Department) The water holding part 16 is provided as needed to store water or aqueous solution. By configuring the water holding part 16 into a type as exemplified in FIGS. 1 to 6 , appropriate humidity can be maintained between the spectacle device 1A and the cornea 20 by evaporating the water stored in the water holding part 16 . , as a result, the cornea 20 can be warmed and moistened. The water holding part 16 is preferably a container including a cloth, sponge, etc. soaked in water.

The structural type of the water holding part 16 is not particularly limited. In the example of FIGS. 1 to 6 , a plastic container is installed on the temple 6 . In this container, you may directly put water or an aqueous solution, or you may put a liquid-absorbing material or a liquid-retaining material such as a sponge or felt soaked in water or aqueous solution. The water holding part 16 may be provided integrally with the spectacles-type device 1A, or may be provided as a cassette container detachable from the spectacles-type device 1A. If necessary, it may have a supply port for supplying water or aqueous solution, or it may have an opening for exchanging water or aqueous solution.

The water retaining portion 16 is preferably provided at the temple 6 which is easier to install than other parts of the spectacles, but may be provided at other parts of the spectacles other than the temple 6 . Furthermore, a type in which the container is made of a different member and is connected to the glasses-type device 1A by a tube or the like may be used. The water or aqueous solution in the water holding part 16 has the effect of warming and increasing the humidity near the eyes.

In the water holding part 16, water is mainly held, but an aqueous solution containing other components may be held. An aqueous solution is water containing water-soluble substances. Examples of water-soluble substances include inorganic substances or organic substances that are soluble or dispersed in water. The water is not particularly limited as long as it is pure water. Tap water, commercially available mineral water, etc. are also acceptable, as are distilled water and ion-exchanged water. In addition, the water or aqueous solution held by the water holding part 16 may contain various medicinal additives according to the purpose.

The evaporation of water in the water holding part 16 may be performed by a heating element (for example, the resistance heating element 17) integrally provided in the water holding part 16. A heat transfer body connected to the above-mentioned resistance heating element 12A may be used. 13 may be extended to the water holding part 16, and the water may be evaporated by the heat of the heat transfer body 13. When the infrared radiation element 12B is used as the heating element 12, the resistance heating element 17 (a different member from the resistance heating element 12A described above) is integrally provided in the water holding part 16, and the resistance heating element 17 is heated to remove the water. Evaporation is better. In addition to heating elements, ultrasonic vibrators may also be used. Ultrasonic vibrators can vibrate water and disperse moisture particles.

(Heating type and humidification type) FIG. 7 is a schematic diagram showing a state in which the cornea 20 is heated by the heat transfer body 13 . FIG. 7(A) shows an initial stage in which the air is heated by the heat transfer body 13 provided on the lower side frame 3b of the glasses. FIG. 7(B) shows a state in which the air is further heated by the heat transfer body 13 and reaches the cornea 20 . In the eyeglass-type device 1A of the present invention, it is preferable that the frame 3 is made larger, and that the heating area 15 heated between the lens 2 and the cornea 20 is of a type that prevents air from easily escaping outward.

FIG. 8 is a schematic diagram showing a state in which the cornea 20 is heated by the infrared radiation element 12B. The example of FIG. 8 is a case where the infrared radiation element 12B is provided on the lower frame 3b shown in FIG. 4 . The infrared rays are in the direction D2 of the cornea 20 . The cornea 20 is warmed by radiant heat generated when the infrared rays 19 emitted from the infrared radiation element 12B reach the cornea 20 . In addition, symbol 14C represents infrared rays for measurement emitted from the non-contact temperature sensor 14B, that is, a radiation thermometer. Since the infrared radiation element 12B and the non-contact temperature sensor 14B both radiate infrared rays (19, 14C), they are installed on the lower frame 3b or the lateral frame so that the radiation direction is directed toward the cornea 20. 3d or armor 4 is better. As a result, the cornea 20 can be effectively warmed, and the temperature of the cornea 20 can be measured more accurately.

Fig. 9 is a schematic diagram showing the moistening state of the cornea 20. FIG. 9(A) shows that as shown in FIGS. 1 to 6 , a water retaining portion 16 is provided on the temple 6 of glasses, and the moisture in the water retaining portion 16 is volatilized by a heating element such as a resistance heating element 17. Early stage appearance. Here, the humidification area 18 is formed by volatilizing water from the water holding part 16 . FIG. 9(B) shows a state in which water further evaporates from the water retaining portion 16 and reaches the cornea 20 to moisturize the cornea 20 . For the spectacle device 1A of the present invention, it is preferable to make the frame 3 larger so that the humidified area 18 between the lens 2 and the cornea 20 is less likely to spread outward.

(cornea heating device and warming effect) In the field of ophthalmology, the number of patients with chronic pain (called chronic eye pain) is increasing, and it has been found that such chronic eye pain can be alleviated by hot compresses, and eye discomfort during activities can be alleviated by closing eyes. Upper eyelids to relieve. It is also understood that the symptoms of chronic eye pain can be improved by closing the eyelids, saunas and baths. However, the current hot compress method not only covers the eyes, but also needs to close the eyes during the period, so it cannot achieve such effects in daily life and work. Moreover, the technology proposed in Patent Document 5 only warms the eyelid portion without affecting the cornea and eyeball.

Although glasses have the effects of bending correction, shading, and protection, glasses that can adjust temperature and humidity do not yet exist. The spectacle-type cornea heating device 1A of the present invention is not covered by the eyelids, can directly and effectively reach the cornea 20 with heat, and can reduce the pain of the cornea 20 . Therefore, you can increase the opening time of your eyes without blinking, which can reduce and eliminate eye fatigue and eye and body discomfort. Moreover, even if it is sensitive, you will not feel pain in the cornea 20, your eyes will become comfortable, and you will feel truly relaxed and comfortable. This corneal warming device 1 can be used in daily life, work, games, etc. in modern society where the burden on the eyes has increased due to the spread of smartphones and the increase in remote work, and can also be used. As an eye treatment device in a medical environment. As a result, people who wear glasses or not wear glasses can wear them for daily life, work or entertainment, and can reduce corneal pain by directly and effectively warming the cornea. Furthermore, it can be used as a new medical device to prevent and treat chronic eye pain through relaxing effects and direct effects on corneal nerves.

[Other types of corneal warming devices] In the above, the spectacle-type corneal warming device 1A and the accessory-type corneal warming device 1B have been described, but here we will describe goggle-type corneal warming devices for functional use, AR use, VR use, and MR use. 1C (goggle-type device 1C), an earhook-type cornea warming device 1D, and a goggle-type cornea warming device 1 (not shown). In addition, the eye patch type corneal warming device 1 will not be described because it is the same as other corneal warming devices 1 .

(Goggle-type corneal warming device) FIG. 16 shows a representative example of the goggle-type device 1C. The goggle-type device 1C can be applied to: for preventing pollen and dust, for work, as a function for sports such as skiing, for games, AR, VR, or MR. In addition, VR is different from see-through AR and MR in that the front part of the goggles is blocked and cannot be seen through. However, regardless of the above goggle-type device 1C, it is used with the eyes open. Such a goggle-type device 1C also includes each component of the glasses-type device 1A. In particular, the same applies to the direction and position of the heating element 12 (resistance heating element 12A, infrared radiation element 12B). It is preferable that the heating element 12 is installed in a direction and position suitable for warming the cornea 20 .

(Ear-hook type corneal warming device) FIG. 17 shows a representative example of the earhook type device 1C. The earhook type device 1D can be used more easily as the corneal warming device 1A. Reference numeral 41 denotes an ear-hook arm, which has a structure in which the heating element 12 is installed on the front end side and can be stably hung on the ear on the rear end side. This earhook type device 1D also includes each component of the glasses type device 1A. In particular, the same applies to the direction and position of the heating element 12 (resistance heating element 12A, infrared radiation element 12B). It is preferable that the heating element 12 is installed in a direction and position suitable for warming the cornea 20 .

(Setting position of heating element) The installation position of the heating element 12 will be described using FIG. 17 . In any of the above-mentioned types of cornea heating devices 1 (1A to 1D), the heating element 12 is provided at: position A below the front of the cornea, and position B on the side below the front of the cornea. , or position B on each side of the cornea, and the distance between any one of position A and position B and the cornea 20 is preferably not less than 10 mm and not more than 60 mm.

"Position A below the front of the cornea" means the position below the dotted line Z1 extending horizontally toward the front of the cornea 20 when the body and head are facing forward and the eyeballs are looking frontally. Preferably, it is the position below The dotted line Z1 forms an angle θ1 of not less than 5° and not more than 45° downward, and is at a distance of not less than 10 mm and not more than 60 mm from the cornea 20 . Furthermore, "the position B on the side below the front of the cornea" means the position on the dotted line Z2 extending horizontally in the left-right direction to the side of the position A with respect to the above-mentioned "front below" position A. Preferably, It is the position A in the direction forming an angle θ1 of not less than 5° and not more than 45° from the dotted line Z1 downward, and the position on the dotted line Z2 extending horizontally in the left-right direction. The distance from the dotted line Z2 to the cornea 20 is 10 mm or more and 60 mm or less. Location.

Furthermore, the "position of each side of the cornea" is the lateral position of the cornea directly transverse to the cornea, which is slightly different from the above-mentioned "side position B of the front and below the cornea". In other words, "positive transverse direction") means the position on the dotted line extending horizontally. Specifically, in the glasses-type device, as shown in FIGS. 23 and 24 , it is at the position of the armor or the side frame on the armor side, that is, at a position where the distance from the cornea 20 is 10 mm or more and 60 mm or less. closer to the eyes.

By arranging the heating element 12 at: position A below the front of the cornea 20, position B to the side below the front of the cornea, or position on each side of the cornea, the heating element 12 can be pointed toward the cornea. 20. Furthermore, by setting the position of the heating element 12 so that the distance from the cornea 20 is not less than 10 mm and not more than 60 mm, the heat radiated from the heating element 12 can be directed and radiated in the direction toward the cornea without causing any damage to the cornea. Covered by eyelids, heat can be directly and effectively reached to the cornea to relieve corneal pain and improve and treat dry eye syndrome. Especially in the case of the infrared radiation element 12B that emits infrared rays, there must be no obstacle that blocks the infrared rays between the infrared radiation element 12B and the cornea 20, and the infrared rays must not be blocked by the eyelids, so that the cornea can be directly and effectively heated. Reduce corneal pain and improve and treat dry eye syndrome.

As exemplified above are the various types of corneal warming devices 1 (1A to 1D). The corneal warming device 1 of the present invention can be of various types, and can be used as a device to reduce pain in the cornea 20, improve pain, and relieve pain in daily life, work, or entertainment. Novel device for treating dry eye syndrome. Among these, in the case of the spectacle-type device 1A that is used as spectacles for daily use, the spectacles themselves for myopia, hyperopia, etc. can be used as a cornea warming device. Therefore, the pain of the cornea 20 can be reduced, improved and improved in daily life and work. Treat dry eye syndrome. Furthermore, in the case of the accessory-type device 1B that can be installed on glasses for daily use, by forming a member different from the glasses for daily use, it is possible to warm the cornea 20, reduce pain, or improve and treat it. It is only worn as a spectacle accessory when you have dry eyes to relieve corneal pain or improve and treat dry eyes. In addition, the functional, AR, VR or MR goggle-type device 1C and the goggle-type device (not shown) can be used in, for example, pollen and dust prevention, work, sports, gaming, IT For business use, it can relieve the pain of cornea 20, improve and treat dry eye syndrome. In addition, the earhook type device 1D and the eye patch type device have a simple structure and are easy to attach and detach, and can reduce the pain of the cornea 20 and improve and treat dry eye syndrome.

[Applicable forms of brain wave measurement] The corneal warming device 1 of the present invention connects an electroencephalogram measuring device that measures the potential (microvolt potential) obtained from the brain to the control device 11, and converts the frequency of the potential measured by the electroencephalogram measuring device. If all or part of the value in the range of 2 to 5 Hz in the frequency spectrum exceeds the reference, the cornea 20 can be heated by the heating element 12 by driving the control device 11 . In this way, when all or part of the 2 to 5 Hz range of the spectrum after frequency conversion exceeds the predetermined standard, as can be confirmed from the results of Experiment 7 described below, the brain recognizes pain, so by The heating element 12 can heat the cornea 20 to the same level as the normal value or below. As a result, pain improvement can be achieved.

Based on this application, this project proposes an objective evaluation device and objective evaluation method for corneal pain. That is, the corneal pain evaluation device and evaluation method are provided with an electroencephalogram measuring device that measures microvolt potential obtained from the brain, and the potential frequency measured by the electroencephalogram measuring device is converted into a frequency of 2 to 5 Hz in the converted spectrum. If all or part of the range exceeds the standard, it is evaluated that corneal pain occurs. [Example]

Hereinafter, the present invention will be explained in further detail through experimental examples.

[Experiment 1] The spectacles type device 1A shown in FIG. 3 was produced. The glasses-type device 1A has a control device 11 installed on the temples 6 on both left and right sides, a resistance heating element 12A installed on the armor 4 on the left and right sides, and is attached to the lower frame 3b on the left and right sides as a heat transfer device. The copper foil of the body 13 (thickness 0.1 mm, length 60 mm, width 8 mm (long side), 2 mm (short side)) is placed in contact with the resistance heating element 12A to conduct heat. In the experiment, in order to compare the temperature rising effects of the left and right sides, only the resistance heating element 12A on the right side was heated and compared with the one on the left side. In addition, the resistance heating element 12A uses a resistance of 25Ω, and can adjust the output (temperature adjustment) in three stages (from the smallest output to mode 1, 2, and 3). In addition, although the water holding parts 16 with a capacity of about 0.3 mL were respectively provided in the temples 6 on both sides of the spectacle-type device 1A, in this experiment 1, no water was placed in the water holding parts 16. sponge. Experiments were conducted using the glasses-type device 1A configured in this manner.

The resistance heating element 12A conducts heat to the heat transfer body 13 by its own heating, thereby warming the air around the heat transfer body 13, and the cornea 20 is effectively warmed by the air. The temperature of the cornea 20 is measured using a temperature and humidity sensor that can measure temperature and humidity (manufactured by Sensirion Co., Ltd., trade name: Thermohygrometer Evaluation Kit EK-H4). After heating the cornea 20, the glasses are measured. The temperature between the device 1A and the cornea 20. The room temperature at the time of measurement is 25.0°C. The results are shown in Table 1. From the results in Table 1, it can be seen that the temperature of the right cornea after heating in Mode 1 increased by a maximum of 1.6°C compared with the left cornea. The temperature of the right cornea after heating in mode 3 increased by a maximum of 2.0°C compared with the left cornea.

The experimenter's sensory evaluation was also performed while the temperature was measured. The sensory evaluation is set into 5 levels, 5 (feels very warm or very comfortable), 4 (feels warm or comfortable), 3 (feels slightly warm or slightly comfortable), 2 (feels slightly warm or slightly comfortable), 1 (not feeling warm or comfortable). As a result, the sensory evaluation of the right eye heated by the mode 1 was 2, and the sensory evaluation of the left eye not heated by the resistance heating element 12A was 1. The sensory evaluation of the right eye heated by mode 3 is 4, and the sensory evaluation of the unwarmed left eye is 1.

[Experiment 2] Using the same glasses as Experiment 1, the resistance heating elements 12A on the left and right sides were heated in Mode 3, and the subject's left and right eyes were heated for 10 minutes. Although the temperature at this time was not measured, it was felt that the temperature rose to at least the same extent as Experiment 1, that is, the same sensory evaluation as Mode 3 of Experiment 1 was achieved. While wearing glasses, measure the number of blinks before warming and the number of blinks after warming. Figures 10 and 11 are measurements taken for 1 minute in a relaxed natural state, and the elapsed blink time (seconds) and blink interval (seconds) before and after heating (Before and After) are compared. Also, when measuring blinks, the user switches to wearing ordinary glasses.

As shown in Figures 10 and 11, before the cornea is warmed, the average blink interval is 3.8 seconds, but after warming, the blink interval becomes 5.5 seconds. They further measured the blink interval between consciously tolerated blinks (also known as the "maximum eye opening time"). As a result, before heating, the average maximum eye opening time was 19 seconds, and after heating, the average maximum eye opening time was 33 seconds. When blinking like this, the number of times when the cornea 20 feels pain, discomfort and unpleasantness increases. In this experiment, although the cornea 20 suffered pain due to consciously enduring blinking, the pain in the cornea 20 could be alleviated by warming the cornea. As a result, the maximum eye opening time can be lengthened, the cornea 20 does not feel pain, and it can be said that a relaxing and comfortable feeling is achieved.

[Experiment 3] Using the same glasses as in Experiment 1, changes in humidity measurements over time were measured. In the glasses of Experiment 1, since the water retaining portions 16 are provided on each of the temples 6 on both sides, a sponge soaked with 0.3 mL of water was placed in the water retaining portions 16 . The water holding part 16 is provided with resistance heating elements 17 different from the resistance heating elements 12A on the left and right sides, and can be controlled independently of the resistance heating elements 12A. In addition, this resistance heating element 17 has a resistance of 75Ω and is arranged in the water holding part 16 .

Similar to Experiment 1, in mode 3, the resistance heating element 12A for warming the cornea is operated, and the resistance heating element 17 in the water holding part 16 is heated to volatilize the water in the water holding part 16. The temperature and humidity before and after were measured by the temperature and humidity sensor. In addition, in this measurement, the gap between the spectacle-type device 1A and the cornea 20 was closed with tape, and the measurement was performed without being affected by the moisture of the outside air as much as possible. Figure 12 is a graph of humidity changes over time. As shown in Figure 12, the humidity is an average value from when the temperature stabilizes (at 17:30) to when the eyes are removed (at 17:55), although it fluctuates with some movements of the face (head). In , the relative humidity is 55.4% and the temperature is 34.7℃. The relative humidity increased by about 10%, and the temperature increased by 3°C.

[Experiment 4] The spectacles type device 1A shown in Fig. 6 was produced. The glasses-type device 1A has the control device 11 installed on the left and right temples 6 and three infrared radiation elements 12B installed on the left and right armor 4 respectively. The installation position of the infrared ray radiating elements 12B is such that the three infrared ray radiating elements 12B provided on each of the left and right armor 4 are positioned so that the infrared rays 19 are directed toward the eyes as much as possible. In the experiment, in order to compare the temperature rising effects of the left and right sides, only the infrared ray emitting element 12B on the right side was controlled. The infrared radiation element 12B uses an 890 nm near-infrared LED (manufactured by Epitex Corporation, trade name: L890-40M). This near-infrared LED has an input of 5.11V and 0.19A (0.97W).

When electromagnetic waves, that is, near-infrared rays, are transmitted into space and come into contact with the cornea 20, the vibration energy of the near-infrared rays causes the molecules of the cornea 20 to vibrate, resulting in a radiation phenomenon that emits heat. The temperature of the cornea 20 is measured using the non-contact temperature sensor 14B, which is a radiation thermometer (manufactured by AIBUCKS, trade name: PM6530B). After the cornea is heated, the non-contact temperature sensor 14B quickly measures the temperature. Surface temperature of the cornea. In this measurement, glasses were used in which a hole was made in a part of the lens and the hole was plugged with a film. During the measurement, the non-contact temperature sensor 14B measured the hole from which the film was removed. The room temperature at the time of measurement was 26.7°C. The results are shown in Table 2. From the results in Table 2, it can be seen that the right cornea after being irradiated with near-infrared rays of 890 nm has a maximum temperature rise of 1.0°C compared with the left cornea. Furthermore, sensory evaluation was also performed when the cornea was heated. The sensory evaluation was the same as that described in Experiment 1. As a result, the sensory evaluation of the right eye exposed to near-infrared rays was 4, and the sensory evaluation of the left eye not exposed to near-infrared rays was 1. From such results, it can be seen that by raising the temperature of the cornea by a maximum of 1.0°C, pain will not be felt in the cornea 20, and the result of feeling warm or comfortable can be obtained.

[Experiment 5] In the same manner as in Experiment 4, spectacles-type device 1A was produced. In this glasses-type device 1A, the control device 11 is also installed on the left and right temples 6, and three infrared radiation elements 12B are installed on each of the left and right armors 4. The installation position of the infrared radiation elements 12B is also the same as in Experiment 4. The three infrared radiation elements 12B provided on each of the left and right armors 4 are positioned so that the infrared radiation direction is directed toward the eyes as much as possible. In the experiment, in order to compare the temperature rising effects of the left and right sides, only the infrared ray emitting element 12B on the right side was controlled. The infrared radiation element 12B uses an 850 nm near-infrared LED (manufactured by Epitex Corporation, trade name: L850-40M00). The near-infrared LED is 5.12V, 0.14A (0.72W).

The same corneal temperature measurement and sensory evaluation as in Experiment 4 were performed. The room temperature at the time of measurement was 25.7°C. The results are shown in Table 3. From the results in Table 3, it can be seen that the right cornea after being irradiated with near-infrared rays of 850 nm increased by 0.8°C compared with the left cornea. Furthermore, sensory evaluation was also performed when the cornea was heated. The sensory evaluation was the same as that described in Experiment 1. As a result, the sensory evaluation of the right eye exposed to near-infrared rays was 2, and the sensory evaluation of the left eye not exposed to near-infrared rays was 1. From such a result, it can be seen that by raising the corneal temperature by 0.8° C., the cornea 20 will not feel pain, but may feel slightly warm or slightly comfortable.

[Experiment 6] In the same manner as in Experiment 4, spectacles-type device 1A was produced. In this glasses-type device 1A, the control device 11 is installed on the left and right temples 6, and the three infrared radiation elements 12B are installed on each of the left and right armors 4. The installation position of the infrared radiation elements 12B is also the same as in Experiment 4. The three infrared radiation elements 12B provided on each of the left and right armors 4 are positioned so that the infrared radiation direction is directed toward the eyes as much as possible. In the experiment, in order to compare the temperature rising effects of the left and right sides, only the infrared ray emitting element 12B on the right side was controlled. The infrared radiation element 12B uses a 1450 nm near-infrared LED (manufactured by Ushio Electric Co., Ltd., trade name: SMBB1450-1100-02). The near-infrared LED is 5.0V, 138mA.

The same corneal temperature measurement and sensory evaluation as in Experiment 4 were performed. The results are shown in Table 4. From the results in Table 4, it can be seen that the right cornea irradiated with near-infrared rays of 1450 nm has a maximum temperature rise of 1.0°C compared with the left cornea. Furthermore, sensory evaluation was also performed when the cornea was heated. The sensory evaluation was the same as that described in Experiment 1. As a result, the sensory evaluation of the right eye exposed to near-infrared rays was 2, and the sensory evaluation of the left eye not exposed to near-infrared rays was 1. From this result, it can be seen that by raising the temperature of the cornea by 0.8°C, the cornea 20 will not feel pain, and a slightly warm or slightly comfortable feeling can be obtained.

In addition, in the above-mentioned Experiments 1 to 6, the outputs of the resistance heating element 12A and the infrared radiation element 12B, and the heating output of the water holding part 16 were respectively set and experiments were performed. Although the experimental results in Experiments 1 to 6 are different for each set value, the temperature and humidity can be controlled arbitrarily. Specifically, temperature and humidity can be raised or lowered by directly adjusting the output. Furthermore, by changing the structure of the glasses so that the space between the glasses and the eyes is as little exposed to outside air as possible, the degree of heating and humidification can be adjusted arbitrarily.

[Experiment 7] The present invention is based on the viewpoint that the cause of discomfort such as an increase in the number of blinks may be related to the action of pain receptors present in the cornea, and it has been found that pain can be reduced and a feeling of relaxation and comfort can be achieved. In this Experiment 7, eye pain in a state of forced eye opening was examined. In the experiment, the subjects were asked to perform a cycle: blink naturally and freely for 30 seconds, then force their eyes to open for 30 seconds, and then blink naturally and freely for 30 seconds again.

In this experiment, the brain wave measurement when eye pain occurred under forced eye opening was graphed based on the literature (Scientific Report, Vol. 11, No. 3192, pp. 1-10), and the vertical axis was plotted as PSD (power spectrum). Density), and the horizontal axis represents the value when the brain wave frequency is converted (frequency: Hz, the same below). The vertical axis shows the relative value of PSD (scale: 0 to 1), and the horizontal axis shows the value (Hz) when the brain wave frequency is converted. The brain waves in Figure 18 described below were measured after forcing the eyes to open for 30 seconds.

The results are shown in Figure 18. Among the three bars at each frequency, the bar on the left side of the symbol a is the result when no heating is performed, the bar on the center side of the symbol b is the result when pain is felt, and the bar on the right side of the symbol c is the result. This is the result of heating the cornea. As shown by symbol b, when pain is felt, the frequency of brain waves in the range of 2 to 5 Hz is greater than usual (baseline). By comparing the range of 2 to 5 Hz, it is evaluated whether pain occurs. Such a result is consistent with the graph type of the pain pattern on the relationship between low back pain and brain waves in a well-known paper (Scientific Report, Vol. 11, No. 3192, pp. 1-10), so it can objectively clarify the eye. Pain can also affect changes in brain waves. From this, it can be seen that by comparing the frequency of all or part of the brain waves in the range of 2 to 5 Hz, it is possible to evaluate whether pain occurs.

And as shown by symbol c, when the cornea 20 is warmed after feeling pain, the value in the range of 2 to 5 Hz becomes smaller (the same as or smaller than the normal value), and becomes a brain wave without feeling pain. This result supports the subjective results of the subjects in Experiment 2 mentioned above.

[Experiment 8] Fig. 19 is an external view of the glasses-type device used in Experiment 8. This glasses-type device has the same structure as Experiment 1, but it has no measurement hole in the lens and is a real-life glasses-type device. This glasses-type device is also the same as Experiment 1. The heating elements are arranged on the left and right respectively. Two resistance heating elements 12A with a resistance of 50Ω are used. The two resistance heating elements 12A are connected in parallel in three pieces, and 5V is applied. case, it is 124mA. Such a heating element can adjust the output (adjust the temperature) in three stages (from the smallest output to mode 1, 2, and 3). Furthermore, since the water retaining portions 16 are provided on each of the temples 6 on both sides, a sponge soaked with 0.3 mL of water is placed in the water retaining portions 16 . The water holding part 16 is provided with resistance heating elements 17 different from the resistance heating elements 12A on the left and right sides, and can be controlled independently of the resistance heating elements 12A. In addition, this resistance heating element 17 has a resistance of 75Ω and is arranged in the water holding part 16 .

In this experiment 8, the spectacles-type device shown in FIG. 19 was worn on a subject, and changes in symptoms of dry eye syndrome and the like before and after wearing the device while operating a personal computer were investigated. In the evaluation, the dry eye syndrome questionnaire shown in Figure 20 (J-OSDI: Japanese version of Ocular Surface Disease Index, Midorikawa-Inomata A, et al. BMJ Open 2019; 9:e033940. doi: 10.1136/bmjopen- 2019-033940). The test is to operate the resistance heating element 12A in mode 2 for 1 minute. The result before operation is set to "OSDI: 1", the result after 1 minute of operation is set to "OSDI: 2", and the result after 3 minutes has passed is set to "OSDI: 3". In addition, in the time series, the evaluation of OSDI: 2 is one minute after the evaluation of OSDI: 1, and the evaluation of OSDI: 3 is four minutes after the evaluation of OSDI: 1.

Figure 21 is a graph showing the results of dry eye syndrome based on the Dry Eye Disease Questionnaire (OSDI). If you compare the results of OSDI:1 and OSDI:2, OSDI has improved. Even if you compare the results of OSDI:1 and OSDI:3, OSDI has also improved. By wearing a spectacle-type device and warming the cornea, it is effective in improving the symptoms of dry eye disease such as glare, stuck eyes, eye pain, blurred eyes, and unclear vision.

Figure 22 is the result of measuring the tear film break-up time (BUT) using the same time series as described above. The method of measuring BUT is to measure the time from when about 1 μL of fluorescein staining solution (0.5%) is instilled in the eye until the tear layer is destroyed (the average of three times is expressed as an integer). Comparing the results of OSDI: 1, the results of OSDI: 2 and the results of OSD: 3, the tear layer destruction time is longer.

Figure 21 obtained from Experiment 8 based on "Revision of the Definition and Diagnostic Criteria for Dry Eye Syndrome in Japan (2016 Edition)" (http://dryeye.ne.jp/for-member/definition-and-diagnosis/) The results in Figure 22 indicate that it can improve and treat dry eye syndrome.

[Experiment 9] Figure 23 is an external view of the glasses-type device used in Experiment 9. Fig. 24 is an explanatory diagram of the installation type of the resistance heating element of the spectacle-type device of Fig. 23. Fig. 24(A) is an explanatory diagram of the resistive heating element provided at a lateral position of the cornea. Fig. 24(B) is an enlarged view thereof. Figure. The characteristic of this glasses-type device is that it is slightly different from the glasses-type devices used in Experiment 3 and Experiment 8. There is no heat transfer body arranged under the frame (lower side frame). Instead, it is arranged directly transversely to the cornea. The resistance heating element at the side warms the cornea from close range, and is equipped with a protective structure to protect the user from accidentally touching the resistance heating element directly. As shown in Figure 24(B), the exposed location where the resistive heating element is visible is also where the heated air is directed to the cornea. Moreover, the black part around it is designed to surround the resistance heating element part and become a protective structure to protect the user from accidentally contacting the high-temperature resistance element.

In this experiment, only the lens was removed for the right eye of the spectacle-type device, the transparent sheet was cut into a frame shape and mounted on the right eye of the spectacle-type device with tape, and the experiment was conducted by opening it when measuring the corneal temperature. The heating elements placed on the left and right respectively are composed of two resistance heating elements with a resistance of 300Ω connected in parallel. When 5V is applied, it is 17mA. Such a heating element can adjust the output (adjust the temperature) in three stages (from the smallest output to mode 1, 2, and 3). In this experiment the experiment was carried out by the strongest mode 3. Furthermore, although water retaining portions are provided on each of the temples 6 on both sides, water is not supplied and the humidity is not controlled.

In this experiment, the glasses-type device was worn for 30 minutes, and subjective evaluations of "temperature feeling" and "comfort feeling" were measured every 5 minutes. Measurements were also taken before and 5 minutes after the start of wearing. The subjective evaluation of "comfort" ranges from -5 (the worst feeling) to 5 (the best feeling) in 11 levels (0 is a neutral evaluation and includes the beginning). The results are shown in Table 5. From Table 5, it can be seen that the maximum increase of +0.7℃ can be seen, and the comfort also increases with the increase in temperature. Also, the comfort lasts even after wearing it.

1: Cornea heating device 1A: Glasses-type device that can be used as glasses for daily use 1B: Accessory device that can be installed on glasses for daily use 1C: Goggle-type device for functional, AR, VR or MR use 1D: Earhook type device 2: Lens 3: Border 3a:Protruding part 3b: Lower border 3c: Upper border 3d: horizontal border 4:Armor 5: hinge 6: glasses temples 7: Ear hook 8: Nose pads 9:Building bridges 11:Control device 12: Heating element 12A: Resistive heating element 12B: Infrared radiation element 12C: Infrared luminous body 13:Heat transfer body 13A:Wire 14: Temperature sensor (contact temperature sensor) 14B: Non-contact temperature sensor 14C: Infrared 15: Heating area 16:Water conservation department 17: Resistive heating element 18: Humidification area 19: Infrared 20: Cornea 31: A fixed part used to fix on commonly used glasses. 41: Ear hanging arm A: The position below the front of each cornea B: The lateral position below the front of each cornea (position A), or the lateral position of each cornea C: Dotted line when viewed from the front D: From the heating element toward the cornea D1: From the heat transfer body toward the cornea D2: From the infrared emitting element toward the cornea L: The distance from the heating element to the cornea L1: The distance from the heat transfer body to the cornea L2: The distance from the infrared emitting element to the cornea X: left and right direction (horizontal direction) Y: Up and down direction (vertical direction) Z1: A dotted line extending horizontally in the front direction Z2: A dotted line extending horizontally in the left and right directions θ1: Angle from the horizontal axis to the bottom α: The field of view of the screen β: The field of view from the screen to the keyboard

[Fig. 1] Fig. 1 is a schematic structural diagram showing an example of the spectacle-type corneal warming device of the present invention provided with a resistance heating element and a heat transfer body. [Fig. 2] An enlarged view of a type in which a heat transfer body is provided on a lower frame of the spectacle-type corneal warming device shown in Fig. 1. [Fig. [Fig. 3] is a photograph of the type shown in Fig. 2, that is, a photograph of a prototype of a spectacle-type corneal warming device. [Fig. 4] Fig. 4 is a schematic structural diagram showing another example of the spectacle-type corneal warming device of the present invention in which an infrared radiation element is provided on a lower side frame. [Fig. 5] An enlarged view of a type in which an infrared radiation element is provided on the armor of the spectacle-type corneal warming device shown in Fig. 4. [Fig. [Fig. 6] A photograph of the type shown in Fig. 5, a photograph of a prototype of a spectacle-type corneal warming device. [Fig. 7] A schematic diagram showing a state in which the cornea is heated by a heat transfer body. [Fig. 8] A schematic diagram showing a manner in which the cornea is heated by an infrared radiation element. [Fig. 9] A schematic diagram showing how the cornea is moistened. [Fig. 10] The results of blinking before and after warming the cornea were measured. [Fig. 11] A graph showing experimental results of eye opening time. [Fig. 12] A graph showing changes in humidity over time. [Fig. 13] An example of office work performed with the corneal warming device installed. [Fig. 14] Another example of performing office work with the corneal warming device installed. [Fig. 15] Fig. 15 is a schematic diagram showing an example of a corneal warming device of an accessory type device that is detachably mounted on glasses for daily use. [Fig. 16] Fig. 16 is a schematic structural diagram showing an example of a goggle-type corneal warming device that is functional for preventing pollen and dust, for work, for sports, and for games such as AR, VR, or MR. [Fig. 17] Fig. 17 is a schematic structural diagram showing an example of an earhook type corneal warming device. [Fig. 18] Frequency characteristics of periodic synchronized discharge (PSD), (a) is the normal PSD, (b) is the PSD when the eyes are forced to open and pain is felt, (c) is the PSD when the cornea is warmed. [Fig. 19] An external view of the glasses-type device used in Experiment 8. [Figure 20] Dry Eye Disease Questionnaire (OSDI). [Fig. 21] A graph showing the results of dry eye syndrome based on the Dry Eye Disease Questionnaire (OSDI). [Figure 22] Results of tear layer breakdown time (BUT). [Fig. 23] An external view of the glasses-type device used in Experiment 9. [Fig. 24] An explanatory diagram of the installation type of the resistance heating element of the glasses type device of Fig. 23. [Fig. (A) is an explanatory diagram of a resistance heating element provided at a lateral position of the cornea, and (B) is an enlarged view thereof.

2: Lens

3: Border

3b: Lower border

3c: Upper border

3d: horizontal border

4:Armor

5: hinge

6: glasses temples

7: Ear hook

8: Nose pads

9:Building bridges

11:Control device

12A: Resistive heating element

13:Heat transfer body

13A:Wire

14: Temperature sensor (contact temperature sensor)

16:Water conservation department

17: Resistive heating element

Claims (10)

A corneal heating device, It is a device that uses a heating element to warm the cornea to relieve pain and/or improve dry eye syndrome. The aforementioned heating element is one or two or more types selected from resistance heating elements, resistance heating elements, heat transfer bodies, and infrared radiation elements. The heating element is arranged at a position below and below the front of each cornea, at a position below and to the side of the front, or at a position to the side of each of the corneas, and is separated from the cornea by a distance of not less than 10 mm and not more than 60 mm. The cornea heating device of claim 1, wherein, The types of the aforementioned corneal heating devices can be: glasses-type devices that can be used as glasses for daily use; accessory-type devices that can be installed on glasses for daily use; functional, AR, VR and MR goggles type device; eye mask type device; or earhook type device. The corneal warming device of claim 1 or 2, wherein, The aforementioned resistance heating element is a metal, alloy or non-metallic material with resistance heating properties. The corneal warming device of claim 1 or 2, wherein, The resistance heating element is connected to or covered by the heat transfer body made of a metal or alloy having excellent thermal conductivity. The corneal warming device of claim 1 or 2, wherein, The aforementioned infrared radiation element is an element that radiates near infrared rays or an element that radiates far infrared rays. The corneal warming device of claim 1 or 2, wherein, There is a control device for controlling the aforementioned heating element. The control device is provided in the aforementioned corneal heating device for direct control, or is controlled through a wired communication element or a wireless communication element. The corneal warming device of claim 1 or 2, wherein, It has a water holding part for holding water or an aqueous solution. The corneal warming device of claim 1 or 2, wherein, In order to maintain the function of heating the cornea by the heating element and to allow the user to use it safely, the aforementioned heating element has a defensive structure that prevents direct contact with the heating element and the heating parts around it. The corneal warming device of claim 1 or 2, wherein, Connect an electroencephalogram measuring device for measuring potentials obtained from the brain to the control device, and convert the frequency of the potential measured by the electroencephalogram measuring device. If the spectrum after frequency conversion covers all or all of the range of 2 to 5 Hz, When a part of the values exceeds the reference, the control device is driven to warm the cornea by the heating element. A corneal pain evaluation device, Equipped with an electroencephalogram measuring device that measures potentials obtained from the brain, When the potential frequency measured by the electroencephalometer is converted, and all or part of the converted spectrum in the range of 2 to 5 Hz exceeds the reference value, it is evaluated that corneal pain occurs.

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