CN114129125B - Intelligent conversion system for calculating required diopter of different near distances - Google Patents
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 33
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- 230000004438 eyesight Effects 0.000 claims abstract description 15
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Abstract
The invention provides an intelligent conversion system for calculating the required diopter of different near distances, which is provided with a diopter input module and an intelligent conversion module; the power input module is used for inputting the actual power of far vision which is approved by the eye experience light of the lens provider and achieves good far vision; the intelligent conversion module is used for intelligently converting diopter values required by eyes of a lens dispenser under different near viewing distances. The intelligent conversion system can automatically judge whether the eyes of the lens distributor belong to far-hyperfocal eyes or near-hyperfocal eyes according to the actual distance reading degree recorded by the lens distributor, and calculate the accurate diopter value required by the eyes of the lens distributor under the near distance reading by adopting an algorithm set for the eyes according to the near distance reading selected by the lens distributor. According to the accurate refraction degree, the near-eye glasses can be matched, so that the eyes do not need to pay any adjusting force when looking at the distance, and the purpose of preventing and controlling myopia from deepening is achieved.
Description
Technical Field
The invention relates to a diopter number calculation system, in particular to an intelligent conversion system for calculating diopter numbers required by different near distances, and belongs to the technical field of ophthalmic diopter.
Background
In the past, when students get near-sighted eyes and cannot see words on a blackboard, the students can quickly see the words on the blackboard far away by being provided with a pair of glasses so as to see the words on the blackboard far away, but unfortunately, when the students see books or computers and the like for near, almost all the students wearing the near-sighted glasses are directly near by wearing the far-sighted glasses, and the unreasonable wearing mode is one of key reasons for continuously deepening the degree of the near-sighted eyes. According to the known lens imaging rule, the closer the object distance is, the farther the image distance is, otherwise, the farther the object distance is, the shorter the image distance is; similarly, a myopic eye cannot be imaged on a fundus when looking far due to the enlargement of the eyeball, but only when looking near, the image distance is prolonged to the fundus imaging by wearing proper concave lens divergence, but when looking near, the image distance is far away from the fundus due to the fact that the object distance is shortened, if looking near by wearing far-looking spectacles, the image distance is diverged to be farther, at the moment, crystals in the eye must be adjusted to be more convex for focusing, and the far image distance can be pulled back to the fundus for imaging. In fact, it is a principle that a myopic wearer can easily experience that the degree of wearing is higher as the distance is longer, the degree of wearing is lower as the distance is shorter, and the wearer can see clearly without wearing glasses when the distance is shorter. Therefore, if the required diopter can be accurately calculated based on a certain section of near distance, and the eyes can wear the glasses with the diopter to see the distance, the eyes do not need to pay any adjusting force any more, so that the purpose of preventing and controlling myopia from deepening is achieved.
However, the formula is calculated according to the existing eye accommodation amplitude (i.e., accommodation force): 1/a=1/P-1/R (where a is the adjustment amplitude, P is the nearest clear point, and R is the farthest clear point), but the number of diopters required for a certain viewing distance cannot be accurately calculated, because the diopter number calculated by applying the formula has a large error and is much higher than the actual required value.
To solve this problem, the present inventors have systematically studied and found that the root cause of the refractive power calculated from the adjustment amplitude calculation formula 1/a=1/P-1/R always being much higher than the actual required value is that the definition of the adjustment amplitude is incorrect, the formula sets the R value at the most clear point, i.e., enlarges the adjustment amplitude of the front eye (i.e., normal eye) to a clear range of the whole visual field, i.e., equivalent to the full depth of field of the human eye, but in practice, the present inventors consider this full depth of field, which is actually composed of two different types of depth of field, one being the focus type of depth of field and the other being the adjustment type of depth of field. The focusing type depth of field refers to the depth of field generated by the fact that the human eye lens is just fixed and focused on an object surface at a certain distance in a stable position, and the depth of field is definitely fixed. The adjusting depth of field is the part of the depth of field which is newly increased by adjusting the force of human eyes. It is clear that this newly increased depth of field will fluctuate with increasing or decreasing adjustments, so it belongs to a fluctuating depth of field. Of course, only this portion of the fluctuating depth of field range is eligible to be defined as an adjustment range, while a fixed depth of field range is ineligible. Since the human eye is in this fixed depth of field and does not exert any adjusting force, this part of the depth of field should not be included in the range of the adjusting amplitude. If this fixed depth of field is calculated as the adjustment amplitude, it will undoubtedly result in a calculated refractive power that is far higher than actually needed. For this reason, the present inventors published a paper entitled "new concept of accommodation mechanism-human eye optical system based on hyperfocal micro-zoom" in the journal of Chinese laboratory ophthalmology, 2013, 7, and proposed herein: the emmetropic eyes should be divided into two main categories, one category is far hyperfocal, and the other category is near hyperfocal. Just because of the existence of the two distinct classes of emmetropia, the errors in the diopter calculated by the current adjustment amplitude calculation formula 1/a=1/P-1/R are large. Only if different algorithms are used for calculating the adjusting force (namely, near refractive power) required to be paid when the eyes look at a certain section to look at a near distance, the accurate value can be obtained.
Disclosure of Invention
In order to quickly and accurately acquire the diopter numbers required by the eyes of the lens provider under different near distances, the invention provides an intelligent conversion system, by utilizing the intelligent conversion system, the eyes of the lens provider can be automatically judged to belong to far-hyperfocal eyes or near-hyperfocal eyes according to the actual distance reading numbers recorded by the lens provider, and the accurate diopter numbers required by the eyes of the lens provider under the near distances can be calculated by adopting an algorithm set for the eyes according to the near distances selected by the lens provider.
The specific technical scheme of the invention is as follows:
An intelligent conversion system for calculating the required diopter of different near distances is provided with a diopter input module and an intelligent conversion module.
The power input module is used for inputting the actual power of far vision which is approved by the eye experience light of the lens matched and achieves good far vision.
The intelligent conversion module is used for intelligently converting diopter values required by eyes of a lens dispenser under different near fields, and the processing flow of the intelligent conversion module is as follows:
And step S01, automatically judging whether the eye belongs to a far hyperfocal eye or a near hyperfocal eye according to the actual degree of the eye of the lens distributor.
The specific judging method comprises the following steps: if the actual degree of far vision is more than-0.50D, the far super focal length eye is defined; if the actual degree of looking away is + -0.25D, then it is defined as a near hyperfocal class of eyes.
In step S02, the lens distributor selects the required near field value.
The system provides a variety of near viewing values including 15cm, 20cm, 25cm, 30cm, 35cm, 40cm, 45cm, 50cm, 55cm, 60cm, 65cm, 70cm for selection.
Step S03, if the eyes of the lens distributor belong to far-hyperfocal eyes, calculating by using an adjusting amplitude calculation formula of the far-hyperfocal front eye; if the eye of the lens distributor belongs to the near-hyperfocal eye, calculating by using an adjusting amplitude calculation formula of the near-hyperfocal eye.
The calculation formula of the adjusting amplitude of the far hyperfocal distance type emmetropic eye is as follows:
1/A1 = D1 = 1/M － 1/H
the calculation formula of the adjusting amplitude of the near-hyperfocal type emmetropic eye is as follows:
1/A2 = D2 = 1/M － 1/N
In the two calculation formulas: a is the regulating amplitude; d is the accommodative power, i.e. diopters; h is the far hyperfocal distance of the emmetropic eye; n is the near hyperfocal distance of the emmetropic eye; m is the accommodation hyperfocal distance of the emmetropic eye.
The definition of the far hyperfocal distance of the emmetropic eye is as follows: when the emmetropic eye focuses to infinity, the object at infinity will be clearly imaged on the fundus retina, while the object at a limited distance will also reach an allowable clear image, if the object is further moved forward, the object at gaze will become blurred (this is the initial point to be adjusted), and the blurred distance from the nearest boundary point of the clear image to the eye crystal is the far hyper-focal length H of the emmetropic eye.
The definition of the near hyperfocal distance of the emmetropic eye is: when the front eye focuses on the nearest clear point, namely the object plane equivalent to the far hyperfocal distance, the maximum depth of field is obtained, the clear range can be from H/2 to infinity, if the front eye is further closed, the focused object becomes blurred (the initial point required to be adjusted), and the blurred distance from the nearest boundary point of the clear imaging to the eye crystal is the near hyperfocal distance N of the front eye; as can be seen by definition, the near hyperfocal distance of the emmetropic eye is equal to half the far hyperfocal distance of the emmetropic eye, i.e. n=h/2.
The definition of the accommodation hyperfocal distance of the emmetropic eye is as follows: when the front eye focuses to the near hyperfocal distance or the far hyperfocal distance to implement the maximum adjustment, the nearest clear target can be just seen, if the front eye continues to approach forward, the objects at which the front eye is focused become blurred (the maximum adjustment point under the limit of eyes), and the blurred distance from the nearest boundary point of the clear imaging to the eye crystal is the adjusting hyperfocal distance M of the front eye.
The inventors found that the maximum value of the far hyperfocal distance of the emmetropic eye was a constant value of 1.2m by repeated measurement of the emmetropic eye, the myopic eye and the presbyopia (i.e., measurement of the emmetropic eye after correcting the degree of distance of vision to make the emmetropic eye be a mirror-wearing eye) and statistics, and that the near hyperfocal distance was equal to half the far hyperfocal distance by definition, so that the maximum value of the near hyperfocal distance of the emmetropic eye was a constant value of 0.6m.
In this step, if the calculation is performed using the formula for calculating the adjustment amplitude of the far hyperfocal distance type emmetropic eye, h=1.2 is substituted into the formula, and the selected near viewing distance value is regarded as the adjustment hyperfocal distance M value to be substituted into the formula, so as to calculate the calculated value of D 1; if the near-hyperfocal distance type emmetropic accommodation amplitude calculation formula is used for calculation, n=0.6 is substituted into the formula, and the selected near-distance viewing value is regarded as the accommodation hyperfocal distance M value to be substituted into the formula, so that the calculated value of D 2 can be calculated.
In step S04, the calculated value of D 1 or D 2 is added to the actual distance reading power of the lens dispenser, i.e. the exact diopter value required for the eye of the lens dispenser to read at the near distance.
Further, the intelligent conversion system is further provided with a registration profiling module, a data storage module and a degree matching module, wherein: the registration profiling module is used for registering basic information for the lens distributor and establishing a corresponding degree file; the data storage module is used for storing all data of the lens distributor, including the accurate diopter value which is calculated by the intelligent conversion module and is necessary for the lens distributor to see at a short distance; the power selection module is used for ordering and selecting glasses based on the required diopter of a certain near distance.
The beneficial effects of the invention are as follows: the intelligent conversion system can automatically judge whether the eyes of the lens distributor belong to far-hyperfocal eyes or near-hyperfocal eyes according to the actual distance-of-sight degrees recorded by the lens distributor, and calculate the accurate diopter value required by the eyes of the lens distributor under the near-distance-of-sight condition by adopting an algorithm set for the eyes according to the near-distance-of-sight value selected by the lens distributor. According to the accurate refraction degree, the near-eye glasses can be matched, so that the eyes do not need to pay any adjusting force when looking at the distance, and the purpose of preventing and controlling myopia from deepening is achieved.
Drawings
Fig. 1 is a schematic diagram of a human-machine interface of the present intelligent conversion system.
Fig. 2 is a process flow diagram of an intelligent scaling module of the present intelligent scaling system.
Fig. 3 is a schematic diagram of definition of far hyperfocal distance of an emmetropic eye.
Fig. 4 is a schematic diagram of definition of near hyperfocal distance of an emmetropic eye.
Fig. 5 is a schematic diagram of definition of the accommodation hyperfocal distance of the front eye.
Detailed Description
The invention is further described below with reference to the drawings and examples.
As shown in fig. 1-5, the intelligent scaling system for calculating the required refractive power for different viewing distances of the present invention is provided with a power entry module and an intelligent scaling module.
The power input module is used for inputting the actual power of far vision which is approved by the eye experience light of the lens matched and achieves good far vision.
The intelligent conversion module is used for intelligently converting diopter values required by eyes of a lens dispenser under different near fields, and the processing flow of the intelligent conversion module is as follows:
And step S01, automatically judging whether the eye belongs to a far hyperfocal eye or a near hyperfocal eye according to the actual degree of the eye of the lens distributor.
The specific judging method comprises the following steps: if the actual degree of far vision is more than-0.50D, the far super focal length eye is defined; if the actual degree of looking away is + -0.25D, then it is defined as a near hyperfocal class of eyes.
In step S02, the lens distributor selects the required near field value.
The system provides a variety of near viewing values including 15cm, 20cm, 25cm, 30cm, 35cm, 40cm, 45cm, 50cm, 55cm, 60cm, 65cm, 70cm for selection.
Step S03, if the eyes of the lens distributor belong to far-hyperfocal eyes, calculating by using an adjusting amplitude calculation formula of the far-hyperfocal front eye; if the eye of the lens distributor belongs to the near-hyperfocal eye, calculating by using an adjusting amplitude calculation formula of the near-hyperfocal eye.
The calculation formula of the adjusting amplitude of the far hyperfocal distance type emmetropic eye is as follows:
1/A1 = D1 = 1/M － 1/H
the calculation formula of the adjusting amplitude of the near-hyperfocal type emmetropic eye is as follows:
1/A2 = D2 = 1/M － 1/N
In the two calculation formulas: a is the regulating amplitude; d is the accommodative power, i.e. diopters; h is the far hyperfocal distance of the emmetropic eye; n is the near hyperfocal distance of the emmetropic eye; m is the accommodation hyperfocal distance of the emmetropic eye.
As shown in fig. 3-5, the far hyperfocal distance H, near hyperfocal distance N, and accommodation hyperfocal distance M of the emmetropic eye are defined with reference to the hyperfocal distances in the photographic theory:
The hyperfocal experiment based on photography proves that when the lens is focused to infinity, a phenomenon that the lens is clear from a certain point near to infinity occurs, and the blur distance from the nearest clear point to the lens is defined as the hyperfocal distance. Similarly, when the emmetropic eye is focused to infinity, objects at infinity will be clearly imaged on the fundus retina, while objects at a finite distance will also reach an allowable clear image, which if continued forward approach will result in the focused object becoming blurred (which is the initial point of accommodation), the blurred distance from the nearest boundary point of this clear image to the eye crystal, which the inventors define as the far hyperfocal distance H of the emmetropic eye.
The hyperfocal experiment based on photography proves that when the lens focuses on the nearest clear point (namely, the far hyperfocal object plane), the clear depth of field range is further enlarged, and the fuzzy distance from the nearest clear point to the lens is shortened to half of the hyperfocal distance. Similarly, when the front eye focuses on the nearest clear point, namely the object plane equivalent to the far hyperfocal distance, the maximum depth of field is obtained, the clear range of the front eye can be from H/2 to infinity, if the front eye is further closed, the focused object becomes blurred (the initial point required to be adjusted), and the blurred distance from the nearest boundary point of the clear imaging to the eye crystal is defined as the near hyperfocal distance N of the front eye by the inventor; as can be seen by definition, the near hyperfocal distance of the emmetropic eye is equal to half the far hyperfocal distance of the emmetropic eye, i.e. n=h/2.
When the emmetropic eye is focused to near or far hyperfocal distance to perform maximum accommodation, the nearest sharp object can just be seen, which if continued to be brought together forward will cause the object at which it is looking to become blurred (this is the point of maximum accommodation at the eye limit), from this nearest imaged boundary point to the blurred distance between the eye crystals, which the inventors define as the accommodation hyperfocal distance M of the emmetropic eye.
The inventors found that the maximum value of the far hyperfocal distance of the emmetropic eye was a constant value of 1.2m by repeated measurement of the emmetropic eye, the myopic eye and the presbyopia (i.e., measurement of the emmetropic eye after correcting the degree of distance of vision to make the emmetropic eye be a mirror-wearing eye) and statistics, and that the near hyperfocal distance was equal to half the far hyperfocal distance by definition, so that the maximum value of the near hyperfocal distance of the emmetropic eye was a constant value of 0.6m.
In this step, if the calculation is performed using the formula for calculating the adjustment amplitude of the far hyperfocal distance type emmetropic eye, h=1.2 is substituted into the formula, and the selected near viewing distance value is regarded as the adjustment hyperfocal distance M value to be substituted into the formula, so as to calculate the calculated value of D 1; if the near-hyperfocal distance type emmetropic accommodation amplitude calculation formula is used for calculation, n=0.6 is substituted into the formula, and the selected near-distance viewing value is regarded as the accommodation hyperfocal distance M value to be substituted into the formula, so that the calculated value of D 2 can be calculated.
In step S04, the calculated value of D 1 or D 2 is added to the actual distance reading power of the lens dispenser, i.e. the exact diopter value required for the eye of the lens dispenser to read at the near distance.
The intelligent conversion system is also provided with a registration filing module, a data storage module and a degree matching module, wherein: the registration profiling module is used for registering basic information for the lens distributor and establishing a corresponding degree file; the data storage module is used for storing all data of the lens distributor, including the accurate diopter value which is calculated by the intelligent conversion module and is necessary for the lens distributor to see at a short distance; the power selection module is used for ordering and selecting glasses based on the required diopter of a certain near distance.
Example 1: some macros, 7 years old men, get their actual degree value far from seeing through optometry correction as follows: the right eye is-1.25 D.S/1.2, the left eye is-1.25 D.S-0.50D.C multiplied by 5/1.2, the value is input into the intelligent conversion system, namely the far hyperfocal distance eye is automatically judged, a macro is a far hyperfocal distance H=1.2m, the macro is a near distance value selected by 0.3M, so M=0.3M is calculated by adopting an adjusting amplitude calculation formula of the far hyperfocal distance front eye, D 1 =1/M-1/H=1/0.3-1/1.2= +2.50D.S, and the actual distance value is the accurate refractive value which is necessary for the macro under the near distance of 0.3M: right eye (-1.25 d.s) +2.50 d.s= +1.25 d.s, left eye (-1.25 d.s-0.50d.c×5) +2.50 d.s= +0.75 d.s+0.50 d.c×95. When the power is used for detecting that the eyes reach 1.2 good near vision, then micro-debugging is carried out on the +/-0.25 D.S lens, the macro does not accept the increase or decrease of the power, and the worn power is confirmed to be the most comfortable, so that the calculated result is confirmed to be accurate.
Example 2: dong Mou years old for men, 1.2 for far vision with naked eyes, 1.5 for left, and actual values of the degrees for far vision obtained through optometry correction are respectively as follows: the right eye is 0.25 D.S/1.5, the left eye is 0.00 D.S/1.5, the value is input into the intelligent conversion system, namely the intelligent conversion system automatically judges that the intelligent conversion system belongs to a near-hyperfocal eye, so that a near-hyperfocal distance N=0.6m of Dong Mou is obtained, the near-hyperfocal distance N=0.3m is selected as a near-distance viewing value by Dong Mou, so that M=0.3m is calculated by adopting an adjusting amplitude calculation formula of the near-hyperfocal distance eye, D 2 =1/M-1/N=1/0.3-1/0.6= +1.67D.S, and the actual value for the near-distance viewing is the accurate diopter value which is necessary for Dong Mou under the near-distance viewing of 0.3M: right eye (-0.25 d.s) +1.67 d.s= +1.42d.s, left eye 0.00 d.s+1.67 d.s= +1.67d.s. When the power is used for detecting that the eyes reach 1.2 good near vision, then micro-debugging is carried out on the +/-0.25 D.S lens, the result Dong Mou does not accept to increase or decrease the power, but confirms that the worn power is the most comfortable, and the calculated result is accurate.
The above-described drawings illustrate only typical embodiments of the invention and are therefore not to be considered limiting of its scope, for the invention may admit to other equally effective alternatives and modifications, without departing from the spirit and principles of the invention.
Claims (5)
1. An intelligent conversion system for calculating the required diopter of different near distances is characterized by comprising a diopter input module and an intelligent conversion module;
the power input module is used for inputting the actual power of far vision which is approved by the eye experience light of the lens provider and achieves good far vision;
the intelligent conversion module is used for intelligently converting diopter values required by eyes of a lens dispenser under different near fields, and the processing flow of the intelligent conversion module is as follows:
Step S01, automatically judging whether the eye belongs to a far hyperfocal eye or a near hyperfocal eye according to the actual degree of the eye of the lens distributor;
Step S02, the lens distributor selects a required near field value;
step S03, if the eyes of the lens distributor belong to far-hyperfocal eyes, calculating by using an adjusting amplitude calculation formula of the far-hyperfocal front eye; if the eye of the lens distributor belongs to the near-hyperfocal eye, calculating by using an adjusting amplitude calculation formula of the near-hyperfocal eye;
the calculation formula of the adjusting amplitude of the far hyperfocal distance type emmetropic eye is as follows:
1/A1 = D1 = 1/M － 1/H
the calculation formula of the adjusting amplitude of the near-hyperfocal type emmetropic eye is as follows:
1/A2 = D2 = 1/M － 1/N
In the two calculation formulas: a is the regulating amplitude; d is the accommodative power, i.e. diopters; h is the far hyperfocal distance of the emmetropic eye; n is the near hyperfocal distance of the emmetropic eye; m is the regulating hyperfocal distance of the emmetropic eye;
The definition of the far hyperfocal distance of the emmetropic eye is as follows: when the emmetropic eye focuses to infinity, the object at infinity can be clearly imaged on the retina of the fundus, and the object at a limited distance can also achieve an allowable clear imaging, if the object is further moved forward, the object at the gaze becomes blurred, and the blurred distance from the nearest boundary point of the clear imaging to the eye crystal is the far hyperfocal distance H of the emmetropic eye;
The definition of the near hyperfocal distance of the emmetropic eye is: when the front eye focuses on the nearest clear point, namely the object plane equivalent to the far hyperfocal distance, the maximum depth of field is obtained, the clear range of the front eye can be from H/2 to infinity, if the front eye is further closed, the focused object becomes blurred, and the blurred distance from the nearest boundary point of the clear imaging to the eye crystal is the near hyperfocal distance N of the front eye; as can be seen by definition, the near hyperfocal distance of the emmetropic eye is equal to half the far hyperfocal distance of the emmetropic eye, i.e., n=h/2;
The definition of the accommodation hyperfocal distance of the emmetropic eye is as follows: when the front eye focuses to the near hyperfocal distance or the far hyperfocal distance to implement the maximum adjustment, the nearest clear target can be just seen, if the front eye continues to approach, the objects watched become blurred, and the blurred distance from the nearest boundary point of the clear imaging to the eye crystal is the adjusted hyperfocal distance M of the front eye;
In step S04, the calculated value of D 1 or D 2 is added to the actual distance reading power of the lens dispenser, i.e. the exact diopter value required for the eye of the lens dispenser to read at the near distance.
2. The intelligent scaling system of claim 1, wherein in step S01 of the processing flow of the intelligent scaling module, the specific method for determining whether the eye belongs to the far-hyperfocal eye or the near-hyperfocal eye is: if the actual degree of far vision is more than-0.50D, the far super focal length eye is defined; if the actual degree of looking away is + -0.25D, then it is defined as a near hyperfocal class of eyes.
3. The intelligent scaling system of claim 1, wherein in step S02 of the process flow of the intelligent scaling module, the system provides a plurality of near field values including 15cm, 20cm, 25cm, 30cm, 35cm, 40cm, 45cm, 50cm, 55cm, 60cm, 65cm, 70cm for selection by the compounder in selecting the desired near field value.
4. The intelligent conversion system according to claim 1, wherein in step S03 of the processing flow of the intelligent conversion module, if the calculation is performed using the formula for calculating the adjustment amplitude of the far hyperfocal distance type emmetropic eye, h=1.2 is substituted into the formula, and the selected near viewing distance value is regarded as the adjustment hyperfocal distance M value substituted into the formula, so that the calculated value of D 1 can be calculated; if the near-hyperfocal distance type emmetropic accommodation amplitude calculation formula is used for calculation, n=0.6 is substituted into the formula, and the selected near-distance viewing value is regarded as the accommodation hyperfocal distance M value to be substituted into the formula, so that the calculated value of D 2 can be calculated.
5. The intelligent conversion system of claim 1, further comprising a registration profiling module, a data storage module, and a degree matching module, wherein: the registration profiling module is used for registering basic information for the lens distributor and establishing a corresponding degree file; the data storage module is used for storing all data of the lens distributor, including the accurate diopter value which is calculated by the intelligent conversion module and is necessary for the lens distributor to see at a short distance; the power selection module is used for ordering and selecting glasses based on the required diopter of a certain near distance.
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| CN108567411A (en) * | 2017-09-15 | 2018-09-25 | 分界线（天津）网络技术有限公司 | A kind of judgement system and method for human eye health state |
| CN109523726A (en) * | 2018-11-30 | 2019-03-26 | 广西秒看科技有限公司 | A kind of myopia Intelligent preventive control equipment, prevention and control system and preventing control method |
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| CA2353921C (en) * | 1998-12-10 | 2009-03-10 | Carl Zeiss Jena Gmbh | System and method for the non-contacting measurement of the axis length and/or cornea curvature and/or anterior chamber depth of the eye, preferably for intraocular lens calculation |
| US7293873B2 (en) * | 2002-12-06 | 2007-11-13 | Visx, Incorporated | Presbyopia correction using patient data |
| US7341350B1 (en) * | 2003-02-06 | 2008-03-11 | Kadambi Brothers, Llc | Method for evaluating and measuring accommodation amplitude and range and a device for employing same |
| CN101422354B (en) * | 2008-11-28 | 2010-11-17 | 阳自祥 | Method for detecting myopia development and detection tool for inducing telescope |
| CN103230253B (en) * | 2013-04-27 | 2015-12-02 | 深圳职业技术学院 | Eye adjustment force training devices |
| JP2015012963A (en) * | 2013-07-04 | 2015-01-22 | 株式会社ライト製作所 | Ocular accommodation function display device, optometry system, and ocular accommodation function analysis program |
| EP3114592B1 (en) * | 2014-03-07 | 2020-06-24 | Essilor International | Method and system for determining personalized near addition value, lens with such addition |
| CN106796359B (en) * | 2014-03-31 | 2019-08-13 | 豪雅镜片泰国有限公司 | The design method and manufacturing method and progressive refractive power glasses lens manufacture system of progressive refractive power glasses lens |
| IL245879B (en) * | 2016-05-26 | 2021-05-31 | Manela Israel | System and method for use in diagnostics of eye condition |
| US11030438B2 (en) * | 2018-03-20 | 2021-06-08 | Johnson & Johnson Vision Care, Inc. | Devices having system for reducing the impact of near distance viewing on myopia onset and/or myopia progression |
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| CN108567411A (en) * | 2017-09-15 | 2018-09-25 | 分界线（天津）网络技术有限公司 | A kind of judgement system and method for human eye health state |
| CN109523726A (en) * | 2018-11-30 | 2019-03-26 | 广西秒看科技有限公司 | A kind of myopia Intelligent preventive control equipment, prevention and control system and preventing control method |
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