Myopia prevention and control lens

Abstract

The utility model relates to the technical field of myopia prevention and control lenses, in particular to a myopia prevention and control lens, which comprises a resin lens, a central micro lens is fixedly embedded in the middle of the resin lens, an edge micro lens is fixedly sleeved on the circumference of the outer wall of the central micro lens, the edge micro lens is divided into four quadrants, the bottom end of the resin lens is provided with an anti-blue-light layer, the bottom end of the anti-blue-light layer is provided with an anti-ultraviolet layer, the bottom end of the anti-ultraviolet layer is provided with a bonding layer, and the bottom end of the bonding layer is provided with an anti-scratch wear-resistant layer. According to the myopia prevention and control lens, the blue light prevention capability of the lens can be improved and eyes of a user can be protected through the blue light prevention layer made of the blue PET film layer, the eyes can be prevented from being damaged by ultraviolet light through the ultraviolet-proof layer made of the polycarbonate film layer, and the scratch-proof and wear-resistant capability of the lens can be improved through the scratch-proof and wear-resistant layer made of the nano-particle resin layer; the service life of the lens is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to myopia prevention and control lens technical field, concretely is a myopia prevention and control lens. BACKGROUND

[0002] In recent years, a variety of myopia prevention and control lenses appear on the market, among which the multi-point defocus design lens based on the peripheral defocus theory is widely used and mature in design, which converges light on the retina in the peripheral retina to form myopic defocus in front of the retina to control myopia. At the same time, the central area of this type of lens on the market is designed without defocus, thereby reducing the influence of the micro-lens on visual quality and providing clear central vision. However, studies have shown that the "competitive defocus" of forming positive focus and defocus in the central area of the retina also has the effect of myopia control, and due to the characteristics of frame glasses, the smaller optical area makes the retina receive more effective defocus signals, which is beneficial to myopia control. At the same time, due to the different peripheral retinal original defocus patterns of each patient and each eye, it is difficult to ensure the formation of ideal and stable peripheral defocus patterns with uniform and symmetrical micro-lenses. For example, the original defocus state of a certain area of the retina is +5D hyperopia defocus, and the micro-lens adds-3D myopia defocus, so the final defocus formed in that area of the retina is +2D hyperopia defocus, which does not achieve the expected effect of-3D myopia defocus. At present, some lenses on the market attempt to compensate for such errors through the rear surface of the lens, but there is no lens that can compensate for such errors by precisely adjusting the defocus amount of the micro-lens.

[0003] However, the myopia lens of the prior art cannot achieve precise and continuous defocus pattern in actual use, and it does not have the function of preventing ultraviolet rays and has poor scratch resistance and wear resistance. In view of the above problems, a myopia prevention and control lens is provided. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a myopia prevention and control lens to solve the problems raised in the background. To achieve the above purpose, the utility model provides the following technical scheme: a myopia prevention and control lens, comprising a resin lens, a central micro-lens is fixedly embedded in the middle part of the resin lens, an edge micro-lens is fixedly sleeved on the outer wall circumference of the central micro-lens, the edge micro-lens is divided into four quadrants, a blue light prevention layer is arranged at the bottom end of the resin lens, an ultraviolet light prevention layer is arranged at the bottom end of the blue light prevention layer, a sticking layer is arranged at the bottom end of the ultraviolet light prevention layer, and a scratch-resistant and wear-resistant layer is arranged at the bottom end of the sticking layer.

[0005] Preferably, the diameter of the central micro-lens is 10mm.

[0006] Preferably, the diameter of the edge micro-lens is 10mm-60mm.

[0007] Preferably, the blue light prevention layer is a blue PET film layer.

[0008] Preferably, the ultraviolet prevention layer is a polycarbonate film layer.

[0009] Preferably, the scratch-resistant wear-resistant layer is a resin layer with nanoparticles attached.

[0010] Compared with the prior art, the beneficial effects of the present application are:

[0011] 1. The microlens is 0-10mm (diameter), and is a weakening and continuous microlens with a defocus amount of 2-3D (gradually increasing from the center to the periphery); 10-60mm is an edge microlens, which is divided into four quadrants of upper, lower, nasal and temporal sides, each 90 degrees, corresponding to the lower, upper, temporal and nasal sides of the retina, respectively, and is compensated and customized according to the original retinal defocus form of the corresponding area, and the final goal is-4.5D myopic defocus. If the average defocus amount of the original retinal lower quadrant is +2D hyperopic defocus, then the microlens power of the corresponding upper quadrant of the lens is 4.5D+2D=6.5D, and finally-4.50D myopic defocus is formed in the lower retinal area;

[0012] 2. The blue light prevention layer made of a blue PET film layer can improve the blue light prevention ability of the lens, protect the eyes of the user, the ultraviolet prevention layer made of a polycarbonate film layer can avoid damage to the eyes by ultraviolet rays, and the scratch-resistant wear-resistant layer made of a resin layer with nanoparticles can improve the scratch-resistant wear-resistant ability of the lens and prolong the service life of the lens. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 It is a structural schematic view of the present application;

[0014] Fig. 2 It is a bottom view of the present application.

[0015] In the figure: 1, resin lens, 2, central microlens, 3, edge microlens, 4, blue light prevention layer, 5, ultraviolet prevention layer, 6, adhesive layer, 7, scratch-resistant wear-resistant layer. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0017] Please refer to Figs. 1-2The utility model provides a technical scheme: a myopia prevention and control lens, including resin lens 1, the middle part fixed inlay of resin lens 1 has central micro lens 2, the outer wall circumference of central micro lens 2 is fixed and is sleeved with edge micro lens 3, edge micro lens 3 is divided into four quadrants, the bottom of resin lens 1 is provided with blue light prevention layer 4, the bottom of blue light prevention layer 4 is provided with ultraviolet protection layer 5, the bottom of ultraviolet protection layer 5 is provided with pasting layer 6, the bottom of pasting layer 6 is provided with scratch resistance wear resistance layer 7, the central micro lens is 0-10mm (diameter), is the weakening, continuous micro lens, and the defocus amount is 2-3D (from the central gradually strengthens to the periphery), 10-60mm is edge micro lens 3, and is divided into upper, lower, nasal side, temporal side four quadrants, each 90 degrees, correspond with the lower, upper, temporal side, nasal side of retina respectively, according to the original retina defocus form of corresponding area and compensatory customization, and the final target is -4.5D myopia defocus.If the average defocus amount of the original retina lower quadrant is +2D hyperopia defocus, then the lens upper quadrant micro lens power of correspondence is 4.5D+2D=6.5D, and finally forms -4.50D myopia defocus in the lower area of retina, the blue light prevention layer 4 made of blue PET film layer can improve the blue light prevention ability of the lens, protect the eyes of the user, the ultraviolet protection layer 5 made of polycarbonate film layer can avoid the damage of ultraviolet to the eyes, the scratch resistance wear resistance layer 7 made of resin layer of nano particles can improve the scratch resistance wear resistance ability of the lens, prolong the service life of the lens.

[0018] In the embodiment, the diameter of the central micro lens 2 is 10mm.

[0019] In the embodiment, the diameter of the edge micro lens 3 is 10mm-60mm.

[0020] In the embodiment, the blue light prevention layer 4 is a blue PET film layer, and the blue light prevention layer 4 made of the blue PET film layer can improve the blue light prevention ability of the lens and protect the eyes of the user.

[0021] In the embodiment, the ultraviolet protection layer 5 is a polycarbonate film layer, and the ultraviolet protection layer 5 made of the polycarbonate film layer can avoid the damage of ultraviolet to the eyes.

[0022] In the embodiment, the scratch resistance wear resistance layer 7 is a resin layer attached with nano particles, and the scratch resistance wear resistance layer 7 made of the resin layer of nano particles can improve the scratch resistance wear resistance ability of the lens and prolong the service life of the lens.

[0023] The basic principle, main features and advantages of the present application are shown and described above. The technical personnel in the industry should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only preferred examples of the present application and are not intended to limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A myopia control spectacle lens comprising a resin lens (1), characterized in that: The middle part of the resin lens (1) is fixedly embedded with a central micro-lens (2), the outer wall circumference of the central micro-lens (2) is fixedly sleeved with an edge micro-lens (3), the edge micro-lens (3) is divided into four quadrants, the bottom end of the resin lens (1) is provided with a blue light prevention layer (4), the bottom end of the blue light prevention layer (4) is provided with an ultraviolet prevention layer (5), the bottom end of the ultraviolet prevention layer (5) is provided with a sticking layer (6), and the bottom end of the sticking layer (6) is provided with a scratch-resistant wear-resistant layer (7).

2. The myopia control lens of claim 1, wherein: The diameter of the central micro-lens (2) is 10mm.

3. The myopia control lens of claim 1, wherein: The diameter of the edge micro-lens (3) is 10mm-60mm.

4. The myopia control lens of claim 1, wherein: The blue light prevention layer (4) is a blue PET film layer.

5. The myopia control lens of claim 1, wherein: The ultraviolet prevention layer (5) is a polycarbonate film layer.

6. The myopia control lens of claim 1, wherein: The scratch-resistant wear-resistant layer (7) is a resin layer with attached nanoparticles.

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