Out-of-focus and dot matrix composite lens for early-stage myopia prevention

Abstract

The utility model discloses an out-of-focus and dot matrix composite lens for early-stage myopia prevention, which comprises a lens main body, a correction area, a central optical correction area, an out-of-focus prevention and control area and a dot matrix area, and the central optical correction area adopts a positive spherical lens. Compared with the prior art, the pair of glasses has the advantages that 1, a small number of positive spherical lenses are additionally arranged in the central optical area of the main lens, teenagers with insufficient hyperopia reserve are compensated, and the development speed of an eye axis is intervened, so that the effect of delaying the occurrence and development of myopia in the early stage of myopia is realized; 2, the safety is better than that of medicine relaxation, no side effect exists, mydriasis medicine atropine is replaced by optical relaxation, no side effect exists, the safety is higher, hyperopia out-of-focus and focusing pressure can be reduced when the eyes see far and near, and the eyes are easier to use; and 3, a dot matrix area is added in the out-of-focus gap, so that the contrast sensitivity can be further reduced, the stimulation of a high-contrast visual signal to retina cone cells is reduced, and the effect of preventing myopia is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of spectacle lenses, in particular to a defocus and dot matrix composite lens for preventing early stages of myopia. Background Art

[0002] With the development of electronic products in recent years, people have developed myopia from childhood to adulthood, especially teenagers. The myopia rate has been increasing in recent years, so the corresponding myopia lenses are also constantly developing, using defocused lens structures to alleviate and prevent the occurrence and deepening of myopia in teenagers.

[0003] In the existing technology for the treatment of myopia, patients are often required to take the mydriatic drug atropine for treatment. However, drug treatment has higher side effects for some younger children. In addition, the lens bodies in the existing technology are all of the same setting. For adolescents with insufficient hyperopia reserve, it is impossible to intervene in the development speed of the eye axis. At the same time, conventional defocused eyes have a low ability to intervene in high-contrast visual signal stimulation. Utility Model Content

[0004] The technical problem to be solved by the present invention is to provide a defocus and dot matrix composite lens for preventing early myopia in view of the deficiencies raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the technical solution provided by the utility model is: a defocus and dot matrix composite lens for the early prevention of myopia, comprising a lens main body, a correction area is provided inside the lens main body, a central optical correction area is provided inside the correction area, the correction area includes a defocus prevention and control area that wraps the central optical correction area, the defocus prevention and control area is provided with multiple defocus points, and a dot matrix area is provided in the gaps between the multiple defocus points. The lens main body is a standard version, and the additional vertex power of the defocus microstructure of the defocus prevention and control area in the standard version increases from the inside to the outside: +3.00D~+4.00D, the diameter of the central optical correction area is 9mm, and the central optical correction area adopts a positive spherical lens, and the refractive power is divided into 4 types, namely: +0.00D, +0.37D, +0.50D, and +0.62D, and the defocus prevention and control area is spirally evenly distributed.

[0006] The number of defocus points in the standard version lens body is 950, the diameter is 1 mm, the coverage diameter is 58.5 mm, and the spacing distance is 0.737 mm.

[0007] The lens body is a reinforced version. The additional vertex power of the defocus microstructure in the defocus prevention and control area in the enhanced version increases from the inside to the outside: +3.50D to +4.50D. The diameter of the central optical correction area is 8mm. The central optical correction area adopts a positive spherical lens, and the refractive power is divided into 4 types, namely: +0.00D, +0.37D, +0.50D, and +0.62D.

[0008] The enhanced lens body has 950 out-of-focus points, a diameter of 1 mm, a coverage diameter of 57.5 mm, and a spacing of 0.737 mm.

[0009] The lens body is manufactured using a 0.12D precision gradient system, and the maximum tolerance accuracy is increased to ±0.06D.

[0010] The advantages of the present invention compared with the prior art are: 1. By adding a small amount of positive spherical lens to the central optical zone of the main lens, it compensates for adolescents with insufficient hyperopia reserve and intervenes in the development speed of the eye axis, thereby achieving the effect of delaying the occurrence and development of myopia in the early stage.

[0011] 2. It is safer than drug relaxation and has no side effects. Optical relaxation replaces the mydriatic drug atropine. It has no side effects and is safer. It can reduce hyperopia and defocus when looking far or near, reduce focusing pressure, and make it easier to use the eyes.

[0012] 3. Adding a dot matrix area in the defocused gap can further reduce contrast sensitivity, reduce the stimulation of high-contrast visual signals on retinal cone cells, and improve the effect of preventing myopia. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The utility model is a structural schematic diagram of a defocus and dot matrix composite lens for preventing early myopia.

[0014] As shown in the figure: 1. Lens body; 2. Central optical correction area; 3. Defocus prevention and control area; 4. Dot matrix area. DETAILED DESCRIPTION

[0015] The present invention will be described in further detail below with reference to the accompanying drawings.

[0016] Combined with attachment Figure 1Example 1: A defocus and dot matrix composite lens for the early prevention of myopia, comprising a lens body 1, wherein the lens body 1 is provided with a correction zone inside, wherein the correction zone is provided with a central optical correction zone 2 inside, wherein the correction zone includes a defocus prevention and control zone 3 that wraps the central optical correction zone 2, wherein the defocus prevention and control zone 3 is provided with a plurality of defocus points, wherein a dot matrix zone 4 is provided in the gaps between the plurality of defocus points, wherein the lens body 1 is a standard version, wherein the defocus microstructure of the defocus prevention and control zone 3 in the standard version increases from +3.00D to +4.00D from the inside to the outside. .00D, the diameter of the central optical correction area 2 is 9mm, the central optical correction area 2 adopts a positive spherical lens, and the refractive power is divided into 4 types, namely: +0.00D, +0.37D, +0.50D, and +0.62D. The defocus prevention and control area 3 is a spirally evenly distributed setting operation. The spiral evenly distributed setting can ensure that the wearer is prevented from feeling dizzy when the eyeball moves. The number of defocus points in the standard version lens body 1 is 950, the diameter is 1mm, the coverage diameter is 58.5mm, and the interval distance is 0.737mm.

[0017] Combined with attachment Figure 1 Embodiment 2 comprises a lens body 1, wherein the lens body 1 has a correction zone disposed therein, and within the correction zone is a central optical correction zone 2. The correction zone includes a defocus control zone 3 surrounding the central optical correction zone 2. The defocus control zone 3 has multiple defocus points arranged in a spirally evenly distributed manner, and a dot matrix 4 is disposed in the spaces between the multiple defocus points. The lens body 1 is a reinforced version, and the defocus microstructure of the defocus control zone 3 in the reinforced version increases in additional vertex power from +3.50D to +4. 50D, the central optical correction area 2 has a diameter of 8mm, the central optical correction area 2 adopts a positive spherical lens, and the refractive power is divided into 4 types, namely: +0.00D, +0.37D, +0.50D, and +0.62D. The number of defocus points in the enhanced version lens body 1 is 950, the diameter is 1mm, the coverage diameter is 57.5mm, and the spacing distance is 0.737mm. The lens body 1 is manufactured with a 0.12D precise gradient system, and the maximum tolerance accuracy is increased to ±0.06D, which can make vision clearer, more accurate, and binocular vision more balanced.

[0018] Example 1 is a conventional lens setting of a defocus and dot matrix composite lens for preventing early myopia, and Example 2 is an enhanced lens setting of a defocus and dot matrix composite lens for preventing early myopia.

[0019] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without inventive design, a structure and embodiment similar to the technical solution should fall within the scope of protection of the present invention.

Claims

1. A defocus and dot matrix composite lens for preventing early myopia, comprising a lens body (1), wherein a correction zone is provided inside the lens body (1), and a central optical correction zone (2) is provided inside the correction zone, characterized in that: The correction area includes a defocus control area (3) that wraps the central optical correction area (2), the defocus control area (3) is provided with a plurality of defocus points, and a dot matrix area (4) is provided in the gaps between the plurality of defocus points. The defocus microstructure of the defocus control area (3) increases from the inside to the outside: +3.00D to +4.00D. The diameter of the central optical correction area (2) is 9mm. The central optical correction area (2) adopts a positive spherical lens, and the refractive power is divided into 4 types, namely: +0.00D, +0.37D, +0.50D, and +0.62D. The defocus control area (3) is arranged in a spiral uniformly distributed manner. The number of defocus points in the lens body (1) is 950, the diameter is 1mm, the covering diameter is 58.5mm, and the spacing distance is 0.737mm.

2. The defocus and dot matrix composite lens for preventing early myopia according to claim 1, characterized in that: The defocus microstructure additional vertex power of the defocus prevention and control zone (3) increases from the inside to the outside: +3.50D to +4.50D, the central optical correction zone (2) has a diameter of 8mm, and the central optical correction zone (2) adopts a positive spherical lens, and the refractive power is divided into 4 types, namely: +0.00D, +0.37D, +0.50D, and +0.62D. The number of defocus points in the lens body (1) is 950, the diameter is 1mm, the coverage diameter is 57.5mm, and the spacing distance is 0.737mm.

3. The defocus and dot matrix composite lens for preventing early myopia according to claim 1, characterized in that: The lens body (1) is manufactured using a 0.12D precision gradient system, and the maximum tolerance accuracy is increased to ±0.06D.

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