CN204694936U - A kind of 360 degree of complete burnt near-sighted prevention and control eyeglasses - Google Patents

Abstract

The utility model discloses a 360-degree all-focus myopia prevention and control lens, which includes a full-focus lens element, and is characterized in that: the full-focus lens element includes a central spherical optical area, a side central spherical optical area and a peripheral optical area The periphery of the central spherical optical area is the paracentral spherical optical area, and the periphery of the paracentral spherical optical area to the edge of the lens is the peripheral optical area. The utility model adopts a 360-degree all-focus myopia prevention and control lens. The image imaged on the retina through different angles of the lens will become a curved surface similar to the curvature of the eyeball. The central image is imaged on the center of the retina, and its The peripheral image is also imaged on the retina or in front of the retina, so that while ensuring the clear vision of the center, the peripheral vision will not stimulate the lengthening of the eyeball, that is, it will send a signal to stop the deepening of myopia, so the lens has a significant effect on delaying the deepening of myopia Effect The utility model has the advantages of simple and generous structure, convenient use and ideal effect, and is a great innovation in the prevention and control function of myopia glasses.

Description

A 360-degree all-focus myopia prevention and control lens

technical field

The utility model relates to myopia prevention and control eyes, in particular to a 360-degree all-focus myopia prevention and control lens.

Background technique

According to the latest statistics, the number of myopia in China is the largest in the world, and myopia is listed as one of the three major diseases in the world. In order to obtain a clear vision, the majority of patients have to adopt various correction methods. There are many methods for correcting myopia that are popular now, but each method has its own insurmountable defects: there is a risk of corneal infection with contact lenses, and it is expensive to wear for a long time; there are relatively large side effects of drug treatment, and new myopia is added every year The detection rate of poor eyesight is 28% for primary school students, 60% for junior high school students, and 85% for high school students in my country, and there is a rising trend. Among primary school students aged 8 to 12 in my country, the incidence of myopia is about 23%, that of middle school students is about 55%, and that of college students is about 76%. Amblyopia is a visual development disorder that is extremely harmful to children. The incidence of amblyopia in my country is 3%-5%. If it is detected and treated early, the total cure rate will be greatly improved. It is the common responsibility of the whole society to pay attention to the eye health of teenagers. At present, for myopia, amblyopia and other poor vision symptoms, most of them adopt traditional methods such as myopia glasses, laser surgery, orthokeratology lenses, eye drops and other methods. These methods cannot control myopia With the deepening of the degree, some of them still have certain side effects.

Contents of the invention

The purpose of the utility model is to overcome the deficiencies in the prior art and provide a kind of phototherapy myopia prevention and control glasses, which can effectively solve the problem of increasing the degree of myopia lenses during wearing by changing the lens structure.

The purpose of this utility model is achieved in that:

A 360-degree all-focus myopia prevention and control lens, which includes a full-focus lens element, characterized in that: the full-focus lens element includes a central spherical optical area, a side central spherical optical area, and a peripheral optical area. The periphery of the spherical optical area is the paracentral spherical optical area, and the periphery of the paracentral spherical optical area to the edge of the lens is the peripheral optical area.

In the above-mentioned 360-degree all-focus myopia prevention and control lens, the central spherical optical area is a traditional concave lens design, and its shape is a semi-elliptical shape with two equal major axes, and its major axis radius is 7.5mm.

In the above-mentioned 360-degree all-focus myopia prevention and control lens, the said side-central spherical optical area is a progressive optical area, and its ring width and long diameter are 15 mm.

In the aforementioned 360-degree all-focus myopia prevention and control lens, the radius of the major axis between the center points of the side central spherical optical area and the central spherical optical area is 22.5 mm.

In the above-mentioned 360-degree all-focus myopia prevention and control lens, the side central spherical optical area and the peripheral optical area are both peripheral gradient optical areas, and adopt an asymmetrical design.

In the above-mentioned 360-degree all-focus myopia prevention and control lens, the ring width and long diameter of the peripheral optical zone are 15mm, and the long-axis radius between the center point of the central spherical optical zone is 37.5mm.

In the aforementioned 360-degree all-focus myopia prevention and control lens, the mirror surface of the peripheral central spherical optical area is decremented by 25 degrees, and the mirror surface of the peripheral optical area is decremented by 25 degrees.

In the above-mentioned 360-degree all-focus myopia prevention and control lens, the central spherical optical area, the side central spherical optical area and the peripheral optical area all maintain a mirror surface with relatively low surface astigmatism.

The utility model has the following advantages: the utility model adopts a 360-degree all-focus myopia prevention and control lens, and the image imaged on the retina through different angles of the lens will become a curved surface similar to the curvature of the eyeball, and the center image The image is imaged in the center of the retina, and its peripheral image is also imaged on the retina or in front of the retina, so that while ensuring the clear vision of the center, the peripheral vision will not stimulate the lengthening of the eyeball, that is, a signal to stop the deepening of myopia, so this lens It has obvious effect on delaying the deepening of myopia. The utility model is simple and elegant in structure, convenient to use and ideal in effect, and is a great innovation in the prevention and control function of myopia glasses.

Description of drawings

Fig. 1 is a kind of embodiment structural representation of the utility model;

In the figure: 1-central spherical optical area, 2-side central spherical optical area, 3-peripheral optical area.

Detailed ways

As shown in Figure 1, a 360-degree all-focus myopia prevention and control lens, which includes a full-focus lens element, is characterized in that: the full-focus lens element includes a central spherical optical area 1, a central spherical optical area 2 and Peripheral optics zone 3 , the periphery of the central spherical optics zone 1 is the paracentral spherical optics zone 2 , and the periphery of the paracentral spherical optics zone 2 to the edge of the lens is the peripheral optics zone 3 .

As shown in Figure 1, the central spherical optical area 1 is a traditional concave lens design, its shape is a semi-elliptical shape with two equal major axes, and its major axis radius is 7.5mm, which is used to correct the central vision defect of the wearer , to provide a clear central vision.

As shown in Fig. 1, the described lateral central spherical optical zone 2 is a progressive optical zone, and its annular width and long diameter are 15mm, and the long-axis radius of the central point of the central spherical optical zone 2 and the central spherical optical zone 1 is 22.5mm.

As shown in Fig. 1, the said central spherical optical zone 2 and the peripheral optical zone 3 are both peripheral progressive optical zones, which adopt an asymmetrical design method. Since the eyeballs tilt downward and inward during the reading process, the peripheral progressive optical zone Asymmetrical design is adopted to satisfy the visual balance of left and right eyes.

As shown in FIG. 1 , the ring width and long diameter of the peripheral optical zone are 15 mm, and the major axis radius between the center point of the central spherical optical zone is 37.5 mm. It is used to adjust the maximum angle of the eyes up, down, left, and right. Through the gradual change of the degree, it can greatly relieve the eye muscle fatigue of visual adjustment.

As shown in FIG. 1 , the specular surface of the peripheral central spherical optical zone is reduced by 25 degrees, and the mirror surface of the peripheral optical zone is reduced by 25 degrees.

As shown in Figure 1, the central spherical optical zone, the side central spherical optical zone and the peripheral optical zone all keep the mirror with low surface astigmatism, and the central spherical optical zone 1 keeps the lens with low surface astigmatism, To ensure the clear vision of the wearer, at the same time, in order to enable the wearer to have a larger viewing angle, the central spherical optical area 2 and the peripheral optical area 3 on the side of the lens along the horizontal meridian direction also have lower surface astigmatism.

As shown in Figure 1, the utility model includes that the all-focus lens element includes a central spherical optical zone 1, whose radius is designed to be 7.5mm; a side central spherical optical zone 2, whose radius is designed to be 22.5mm; peripheral optical zone 3, whose radius It is 37.5mm; the side central spherical optical zone 2 and the peripheral optical zone 3 are all edge progressive optical zone lenses of positive magnification. The central spherical optical zone 1 is fitted according to the actual prescription of glasses; the side central spherical optical zone 2 is fitted according to the actual optometry minus 25 degrees; the peripheral optical zone 3 is fitted according to the prescription of the side central spherical optical zone, which is decremented again by 25 degrees.

As shown in Figure 1, the 360-degree all-focus myopia prevention and control lens element of the present utility model includes a central spherical optical area 1, a side central spherical light area 2, and is positive relative to the side central spherical light area 1 and the peripheral optical area 3. Power edge gradient optical zone lenses. The central spherical optical area 1 is a traditional concave lens design, and its shape is a semi-elliptical shape with two equal major axes. The central image is imaged at the center of the retina, while its peripheral images are also imaged on the retina or in front of the retina, thus ensuring the center At the same time of clear vision, the peripheral vision will not stimulate the lengthening of the eyeball, that is, it will send a signal to stop the deepening of myopia, so the lens has an obvious effect on delaying the deepening of myopia. A great innovation in the prevention and control function of glasses. The different refractions of different focal points on the omnifocal lens form an imaging surface similar to the curvature of the eyeball, which ensures the comfort and clarity of the entire retinal imaging, eliminates the hyperopia and defocus of the peripheral retina, and solves the problem caused by traditional myopia glasses. The factors that stimulate the deepening of myopia make the growth of the eye axis slow down or stop, so as to achieve the effect of controlling or delaying the progression of myopia

As shown in Figure 1, the technology of this utility model is used in glasses with myopia degrees ranging from 75 degrees to 1200 degrees. Its appearance is simple and easy to use, and it can control the increase of myopia degrees of the eyes, and the effect is obvious. It is an innovative technology in the field of myopia glasses.

The specific embodiments described above have further described the purpose, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above descriptions are only specific embodiments of the present invention and are not used to limit the protection of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (8)

1. A 360-degree all-focus myopia prevention and control lens, which includes a full-focus lens element, is characterized in that: the full-focus lens element includes a central spherical optical zone, a central spherical optical zone and a peripheral optical zone, and the The periphery of the central spherical optical area is the side central spherical optical area, and the periphery of the side central spherical optical area to the edge of the lens is the peripheral optical area. 2. A 360-degree all-focus myopia prevention and control lens according to claim 1, characterized in that: the central spherical optical area is a traditional concave lens design, and its shape is a semi-elliptical shape with two long axes equal, Its major axis radius is 7.5 mm. 3. A kind of 360-degree all-focus myopia prevention and control lens according to claim 1, characterized in that: said side-central spherical optical zone is a progressive optical zone, and its ring width and long diameter are 15mm. 4. A 360-degree all-focus myopia prevention and control lens according to claim 3, characterized in that: the long-axis radius of the center point of the side central spherical optical area and the central spherical optical area is 22.5 mm. 5. A 360-degree all-focus myopia prevention and control lens according to claim 1, characterized in that: the side central spherical optical area and the peripheral optical area are both peripheral gradient optical areas, and adopt an asymmetrical design. 6. A 360-degree all-focus myopia prevention and control lens according to claim 5, characterized in that: the ring width and major diameter of the peripheral optical zone are 15 mm, and the major axis radius with the center point of the central spherical optical zone is 37.5 mm. mm. 7. A 360-degree all-focus myopia prevention and control lens according to claim 1, characterized in that: the mirror surface of the central spherical optical zone is decremented by 25 degrees, and the mirror surface of the peripheral optical zone is decremented by 25 degrees. 8. A 360-degree all-focus myopia prevention and control lens according to claim 1, characterized in that: the central spherical optical area, the side central spherical optical area and the peripheral optical areas all maintain a mirror surface with a lower surface image scattered.