Low-contrast teenager myopia management lens

Abstract

The low-contrast teenager myopia management lens comprises a base layer, the base layer comprises an optical part located in the center and a peripheral part arranged on the outer side of the optical part, the light transmittance of the peripheral part ranges from 60% to 80%, the difference between the light transmittance of the peripheral part and the light transmittance of the optical part ranges from 10% to 30%, and a low-contrast film layer is arranged on the outer side of the base layer. The low-contrast film layer comprises a first film layer arranged on the outer side of the base layer and a second film layer arranged on the outer side of the first film layer, the first film layer and the second film layer are alternately stacked to form a multi-layer film structure, the total number of the film layers is 5-15, the refractive index range of the first film layer is 1.6-1.8, the refractive index range of the second film layer is 1.38-1.48, and a wear-resistant layer is arranged on the outer side of the low-contrast film layer. By arranging the low-contrast film layer and the light transmittance, the retina is stimulated to generate a signal for inhibiting myopia development, so that the purpose of controlling myopia development is achieved.

Description

Technical Field

[0001] This utility model belongs to the field of lenses, specifically, it relates to a low-contrast lens for myopia management in teenagers. Background Technology

[0002] In recent years, the incidence of myopia among teenagers has been rising year by year, and it is showing a trend of occurring at younger ages. Studies have shown that prolonged close-range use of the eyes is an important factor leading to the occurrence and development of myopia in teenagers. With the popularization of electronic devices and the increase in academic pressure, teenagers have significantly extended their screen time, and the frequency and intensity of close-range use have also increased dramatically, making the myopia problem increasingly serious.

[0003] Traditional methods of myopia correction primarily involve wearing concave lenses. These lenses alter the refraction path of light, allowing it to focus correctly on the retina and thus correct vision. However, this method has significant limitations. While traditional concave lenses can improve vision, they cannot effectively control the progression of myopia. Studies have shown that relying solely on concave lenses for vision correction may lead to further elongation of the eyeball, thereby exacerbating myopia development. This is particularly problematic for adolescents, whose eyes are not yet fully developed, making their myopia more prone to rapid progression and failing to meet the needs of modern myopia management. Utility Model Content

[0004] In view of this, the technical problem to be solved by this utility model is to provide a low-contrast lens for myopia management in teenagers. Through innovative low-contrast film design and light transmittance adjustment, it aims to solve the above-mentioned shortcomings of traditional lenses and provide a more effective solution for myopia management in teenagers.

[0005] To address the aforementioned technical problems, this utility model discloses a low-contrast myopia management lens for teenagers, comprising: a base layer, the base layer including an optical part located in the center and a peripheral part disposed outside the optical part, the light transmittance of the peripheral part being 60-80%, and the light transmittance difference between the peripheral part and the optical part being 10%-30%, a low-contrast film layer disposed outside the base layer, the low-contrast film layer including a first film layer disposed outside the base layer and a second film layer disposed outside the first film layer, the first film layer and the second film layer being alternately stacked to form a multilayer film structure, the total number of film layers being 5-15 layers, the refractive index of the first film layer being in the range of 1.6-1.8, the refractive index of the second film layer being in the range of 1.38-1.48, and a wear-resistant layer disposed outside the low-contrast film layer.

[0006] According to one embodiment of the present invention, the thickness of the first film layer is the same as the thickness of the second film layer, and the thickness of the first film layer is 50-150 nm.

[0007] According to one embodiment of the present invention, the light transmittance of the aforementioned base layer gradually decreases from the optical part to the peripheral part.

[0008] According to one embodiment of the present invention, the base layer is a resin lens or a glass lens.

[0009] Compared with the prior art, the present invention can achieve the following technical effects:

[0010] 1) By setting a low-contrast film layer and light transmittance, the retina is stimulated to generate signals that inhibit the development of myopia, thereby achieving the purpose of controlling the development of myopia.

[0011] Of course, any product implementing this utility model does not necessarily need to achieve all of the above technical effects at the same time. Attached Figure Description

[0012] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0013] Figure 1 This is a schematic diagram of a low-contrast myopia management lens for teenagers according to an embodiment of this utility model.

[0014] Figure 2 This is a cross-sectional view of a low-contrast myopia management lens for teenagers according to an embodiment of this utility model.

[0015] Attached Figure Labels

[0016] Base layer 10, low contrast film layer 20, first film layer 30, second film layer 40, optical part 50, peripheral part 60, wear-resistant layer 70. Detailed Implementation

[0017] The following will describe in detail the implementation of this utility model with reference to the accompanying drawings and embodiments, so that the implementation of this utility model can be fully understood and carried out based on how technical means are used to solve technical problems and achieve technical effects.

[0018] Please refer to Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of a low-contrast myopia management lens for teenagers according to an embodiment of this utility model. Figure 2This is a cross-sectional view of a low-contrast myopia management lens for teenagers according to an embodiment of the present invention. As shown in the figure, a low-contrast myopia management lens for teenagers includes: a base layer 10, which includes an optical portion 50 located in the center and a peripheral portion 60 disposed outside the optical portion 50. The light transmittance of the peripheral portion 60 is 60-80%, and the light transmittance difference between it and the optical portion 50 is 10%-30%. A low-contrast film layer 20 is disposed on the outside of the base layer 10. The low-contrast film layer 20 includes a first film layer 30 disposed outside the base layer 10 and a second film layer 40 disposed outside the first film layer 30. The first film layer 30 and the second film layer 40 are alternately stacked to form a multilayer film structure, with a total of 5-15 film layers. The refractive index range of the first film layer 30 is 1.6-1.8, and the refractive index range of the second film layer 40 is 1.38-1.48. A wear-resistant layer 70 is disposed on the outside of the low-contrast film layer 20.

[0019] In one embodiment of this utility model, the base layer 10 can be a resin lens or a glass lens to meet different vision correction needs. The base layer 10 includes an optical part 50 located in the center and a peripheral part 60 disposed outside the optical part 50. The light transmittance of the peripheral part 60 is 60-80%, and the light transmittance difference between it and the optical part 50 is 10%-30%. The light transmittance of the base layer 10 gradually decreases from the optical part 50 to the peripheral part 60. This difference in light transmittance can visually simulate a defocus effect, stimulating the retina to generate signals that inhibit the development of myopia, thereby effectively controlling the increase of myopia in adolescents.

[0020] Furthermore, the low-contrast film layer 20 includes a first film layer 30 made of a high-refractive-index material and a second film layer 40 made of a low-refractive-index material. The high-refractive-index material can be one or more of TiO2, Nb2O5, and Ta2O5, with a refractive index ranging from 1.6 to 1.8 and a thickness of 50 to 150 nm. The low-refractive-index material can be one or more of SiO2 and MgF2, with a refractive index ranging from 1.38 to 1.48 and a thickness of 50 to 150 nm. The first film layer 30 and the second film layer 40 are alternately stacked to form a multilayer film structure, with a total of 5 to 15 layers. This multilayer film structure design can effectively adjust the light transmittance, thereby achieving a low-contrast effect.

[0021] In addition, an abrasion-resistant layer 70 is set on the outer side of the contrast coating, which greatly enhances the overall abrasion resistance of the lens.

[0022] In summary, this invention achieves the goal of controlling myopia progression by setting a low-contrast film layer 20 and light transmittance to stimulate the retina to generate signals that inhibit myopia development.

[0023] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the present invention's conception through the foregoing teachings or related technical or knowledge. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A low-contrast myopia management lens for a teenager, characterized in that, The application relates to a lens, which comprises a base layer, the base layer comprising a central optical part and a peripheral part arranged outside the optical part, the peripheral part having a light transmittance of 60-80% and a difference of 10-30% from the light transmittance of the optical part, the base layer being provided with a low-contrast film layer outside, the low-contrast film layer comprising a first film layer arranged outside the base layer and a second film layer arranged outside the first film layer, the first film layer and the second film layer being alternately stacked to form a multilayer film structure, the total number of film layers being 5-15, the refractive index of the first film layer being in the range of 1.6-1.8, the refractive index of the second film layer being in the range of 1.38-1.48, and the low-contrast film layer being provided with a wear-resistant layer outside. The thickness of the first film layer is consistent with the thickness of the second film layer, and the thickness of the first film layer is 50-150 nm.

2. The low-contrast myopia management lens for teenagers according to claim 1, characterized in that, The light transmittance of the base layer gradually decreases from the optical part to the peripheral part.

3. The low-contrast myopia management lens for teenagers according to claim 1, characterized in that, The base layer is a resin lens or a glass lens.

4. The low-contrast myopia management lens for teenagers of claim 1, wherein, ​

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