CN207164387U - A kind of myopia recovery glasses for solving retina image-forming defocus and preventing axis oculi from elongating - Google Patents

Abstract

A kind of myopia recovery glasses that solve retinal imaging defocus and prevent eye axis elongation, including a frame and lenses, the center of the lens is the central optical area, and the diopter gradually increases from the center of the central optical area to the edge center of the central optical area. The central diopter increment ranges from 0.00D to -8.00D. The diopter of the outer peripheral optical zone from the edge of the central optical zone to the edge of the lens decreases slowly relative to the central diopter. The diopter increment range of the outer peripheral optical zone is the incremental range of the central diopter minus 0.50 D～+1.50D. It has the characteristics of correcting vision, restoring vision, and preventing elongated eye axis.

Description

Myopia recovery glasses that solve retinal imaging defocus and prevent eye axis elongation

technical field

The utility model relates to a kind of myopia glasses, in particular to a kind of myopia recovery glasses which solve the problem of defocusing of retinal imaging and prevent eye axis elongation.

Background technique

Myopia refers to a refractive state in which the focus falls in front of the retina after the parallel rays of light are refracted by the refractive system of the eye when the eye does not use accommodation. Therefore, the myopic eye cannot see the distant target clearly. If the target is gradually moved closer to the eye, the emitted light will spread out to the eye to a certain extent, and the focal point will move back when the target moves closer to a certain point in front of the eye. The closer this point is to the eye, the deeper the degree of myopia.

Most of the causes of myopia are that the front and rear axis of the eyeball is too long (called axial myopia), followed by the strong refractive power of the eye (called refractive myopia). Myopia mostly occurs in adolescence, and genetic factors have a certain influence, but its occurrence and development are closely related to insufficient lighting, improper reading posture, and prolonged close work. Most myopia occurs in adolescents, and the degree increases year by year during the growth stage, and does not develop or develops slowly after maturity. The degree of myopia rarely exceeds 6D, the fundus does not undergo degenerative changes, and the vision can be corrected with glasses, which is called simple myopia. The other kind of myopia occurs earlier (it can occur between the ages of 5 and 10), and it progresses rapidly. After the age of 25, it continues to develop, and the degree of myopia can reach more than 15D. It is often accompanied by changes in the fundus, and the vision is not easy to correct. It is called Degenerative myopia. In addition, it is customary to call myopia below 3D as mild myopia, those with 3D to 6D as moderate myopia, and those above 6D as high myopia.

When a standard normal eye sees an object, the light is adjusted through the lens of the eye so that all parts of the visual image through the pupil just fall on the center and periphery of the retina, so the object seen is relatively clear. The existence of myopia, especially the myopia caused by the elongation of the eye axis, when the reflected light of the object passes through the lens pupil to produce a visual image, the visual image falls in front of the retina, resulting in blurred and unclear vision. For myopic groups, when the visual image falls behind the retina, in order to adjust to the best visual state, the eye axis extends backwards so that the visual image falls on the retina or in front of the retina, resulting in aggravated myopia, which is called defocusing Sexual myopia.

People with myopia, especially teenagers, usually wear myopia glasses to correct their eyesight. Wearing glasses for defocused myopia often leads to aggravation of myopia. The object image that passes through the optical center point falls on the central retina, but due to the consistency of the lens power and the stretching deformation of the eye axis, the image is evenly located in the standard circle, causing some visually induced light to pass through the pupil, and the object The image falls behind the retina, resulting in poor visual experience, thus leading to a deepening of myopia.

There are many methods for correcting myopia that are popular now, but each method has its own insurmountable defects. Single vision lenses use the same diopter when correcting distance vision and distance vision, which increases the fatigue degree of near vision and increases the degree of myopia; Progressive multifocal lenses use progressive diopters from the far-sighted area to the near-sighted area, but they can only correct myopic ametropia and cannot effectively delay the progression of myopia. If the central retinal fovea area maintains clear vision while the peripheral retina remains out of focus, this results in elongation of the eyeball and further progression of myopia. However, traditional myopia correction lenses cannot eliminate the stimulating factors of myopia progression.

Contents of the invention

In order to overcome the deficiencies of the above-mentioned prior art, the purpose of this utility model is to provide a kind of myopia recovery glasses that can solve the problem of retinal imaging defocus and prevent eye axis elongation, which has the characteristics of correcting vision, restoring vision, and preventing eye axis elongation.

In order to achieve the above object, the technical solution adopted by the utility model is:

A kind of myopia recovery glasses for solving retinal imaging defocus and preventing eye axis elongation, including a frame and lenses, the center of the lens is the central optical area, and the diopter gradually increases from the center of the central optical area to the edge center of the central optical area. The central diopter increment ranges from 0.00D to -8.00D. The diopter of the outer peripheral optical zone from the edge of the central optical zone to the edge of the lens decreases slowly relative to the central diopter. The diopter increment range of the outer peripheral optical zone is the incremental range of the central diopter minus 0.50 D～+1.50D.

The lens is an aspherical lens.

The beneficial effects of the utility model are:

According to the principle of human retinal imaging, by reducing the peripheral power of the lens, the focal point projected behind the retina is moved to the retina or in front, and the peripheral vision is also corrected while the central vision of the retina is corrected, preventing the tendency of the eyeball to grow backward. Finally, the purpose of delaying the development of myopia is achieved, and the direction of visually induced light in other directions is adjusted, so that the object image is completely located in front of the retina, which enhances the visual experience and effectively delays the decline of vision. Different diopters are used for different correction requirements, with lower superficial astigmatism for the central optical zone and peripheral peripheral optical zones along the horizontal meridian. It can effectively delay the progression of myopia in young people.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Among them, 1 is the frame; 2 is the lens; 3 is the central optical area; 4 is the center; 5 is the edge of the central optical area; 6 is the edge of the lens.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described.

As shown in Figure 1, a kind of myopia recovery glasses that solve retinal imaging defocus and prevent eye axis elongation includes a frame 1 and a lens 2, the center of the lens 2 is a central optical area 3, and the center of the central optical area 3 is 4 directions The central diopter of the edge 5 of the central optical zone gradually increases, and the central diopter increment ranges from 0.00D to -8.00D. The diopter of the outer edge optical zone from the edge 5 of the central optical zone to the edge 6 of the lens decreases slowly relative to the central diopter. The increasing range of diopter in the peripheral optical zone is the increasing range of central diopter minus 0.50D～+1.50D.

The lens 2 is an aspherical lens.

The working principle of the utility model is:

When light passes through different positions of the lens at different angles, it will become a curved surface similar to the curvature of the eyeball. The central image is imaged in the center of the retina, and the peripheral image is also imaged on the retina or in front of the retina, which is projected on the axis of the eye. The image changes from a plane to a curved surface, perfectly fitting the curvature of the eyeball, thereby ensuring clear vision in the center, and completely eliminating retinal hyperopic defocus, so that the eye axis is no longer elongated, and the peripheral retinal vision will not stimulate the elongation of the eyeball. , the degree of myopia is under control.

Claims (2)

1. a kind of myopia recovery glasses for solving retina image-forming defocus and preventing axis oculi from elongating, including picture frame（1）And eyeglass（2）, Characterized in that, described eyeglass（2）Optical region centered on center（3）, central optic region（3）Center（4）To center Optical region edge（5）Central refractive power is gradually incremented by, described central refractive power incremental range 0.00D~-8.00D, therefrom Heart optical region edge（5）To lens edge（6）Outward flange optics area diopter slowly successively decrease with respect to central refractive power, it is described Outward flange optics area diopter incremental range centered on the incremental range of diopter subtract 0.50D~+1.50D.

2. a kind of myopia recovery glasses for solving retina image-forming defocus and preventing axis oculi from elongating according to claim 1, its It is characterised by, described eyeglass（2）For aspherical mirror.