Annular out-of-focus spectacle lens for preventing and delaying myopia development

Abstract

The invention discloses an annular out-of-focus spectacle lens for preventing and delaying myopia development, which comprises a lens main body, a correction area is arranged in the lens main body, a central optical correction area is arranged on the inner side of the correction area, and the correction area comprises 12 out-of-focus ring structures arranged from inside to outside. A first out-of-focus microstructure area is formed from the first out-of-focus ring structure to the fourth out-of-focus ring structure from inside to outside, a second out-of-focus microstructure area is formed from the fifth out-of-focus ring structure to the eighth out-of-focus ring structure from inside to outside, and a third out-of-focus microstructure area is formed from the ninth out-of-focus ring structure to the twelfth out-of-focus ring structure from inside to outside. Compared with the prior art, the multi-ring type annular spherical lens defocus is arranged, the filling rate of the prevention and control function area is increased, the effect of delaying the growth of the ocular axis is better, meanwhile, the defocus microstructure areas with different diopters are arranged from inside to outside, the eyeballs can move to different angles, and therefore the eyeballs can be effectively prevented and controlled. Ocular axis growth is delayed according to different diopters.

Description

Technical Field

[0001] The present invention relates to the technical field of defocus spectacle lenses, and specifically refers to an annular defocus spectacle lens for preventing and delaying the development of myopia. Background Art

[0002] With the development of electronic products in recent years, people have myopia development from childhood to adulthood, and the number of myopic teenagers is increasing continuously, with myopia getting younger and the high myopia rate also rising continuously. Newborn infants are farsighted, and they become emmetropic as they grow. If the development is too fast, they will become myopic. Among them, the most influential factor in the occurrence and development of myopia is the rapid development of the eye axis. Therefore, the corresponding myopia spectacle lenses are also constantly evolving. Now, myopia defocus lenses are beginning to be used. They utilize the myopia defocus principle. While correcting central refractive errors, they use the relatively positive diopter in the periphery to correct the peripheral retinal hyperopic defocus in myopia, thereby inhibiting the eye axis growth and myopia progression induced by peripheral retinal hyperopic defocus, so as to play a role in delaying the deepening of vision. Such lenses are widely used in current life. The spectacle body of the existing myopia defocus lenses is a homogeneous medium. When light passes through, regular changes occur, causing the image to be refracted onto and in front of the retina, thus being able to play a role in inhibiting the deepening of vision while correcting vision.

[0003] However, most of the defocus lenses in the prior art adopt the method of dot spherical lens defocus. However, for the defocus lenses with this structure, the filling rate is relatively low, and the setting area is fixed. When the eyeball moves, it cannot move according to the eyeball angle to achieve different delaying effects. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an annular defocus spectacle lens for preventing and delaying the development of myopia in view of the deficiencies mentioned in the above background art.

[0005] To solve the above technical problem, the technical solution provided by the present invention is: an annular defocus spectacle lens for preventing and delaying the development of myopia, including a lens body. A correction area is provided inside the lens body, and a central optical correction area is provided inside the correction area. The correction area includes 12 defocus ring structures arranged from the inside out;

[0006] From the first defocus ring structure to the fourth defocus ring structure from the inside out forms the first defocus microstructure region, from the fifth defocus ring structure to the eighth defocus ring structure from the inside out forms the second defocus microstructure region, from the ninth defocus ring structure to the twelfth defocus ring structure from the inside out forms the third defocus microstructure region. The central optical correction region is set to 8 mm, the photometric range of the central optical correction region is set to +2.00D to -10.00D, the diameters of the 12 defocus ring structures are all set to 1 mm, and the defocus diopter range is set to +10.00D to -10.00D.

[0007] Further, the diopter of the first defocus microstructure region is +3.50D, the diopter of the second defocus microstructure region is +4.00D, the diopter of the third defocus microstructure region is +4.50D, and the photometric range of the central optical correction region is set to +2.00D to -10.00D.

[0008] Further, the diopter of the first defocus microstructure region is -3.50D, the diopter of the second defocus microstructure region is -4.00D, the diopter of the third defocus microstructure region is -4.50D, and the photometric range of the central optical correction region is set to +2.00D to -10.00D.

[0009] Further, the diopter of the first defocus microstructure region is +4.50D, the diopter of the second defocus microstructure region is +5.00D, the diopter of the third defocus microstructure region is +5.50D, and the photometric range of the central optical correction region is set to +2.00D to -10.00D.

[0010] Further, the diopter of the first defocus microstructure region is -4.50D, the diopter of the second defocus microstructure region is -5.00D, the diopter of the third defocus microstructure region is -5.50D, and the photometric range of the central optical correction region is set to +2.00D to -10.00D.

[0011] Further, the diopter of the first defocus microstructure region is +3.50D, the diopter of the second defocus microstructure region is +4.00D, the diopter of the third defocus microstructure region is +4.50D, and the photometric range of the central optical correction region is +0.00D to +2.00D.

[0012] Further, the diopter of the first defocus microstructure region is -3.50D, the diopter of the second defocus microstructure region is -4.00D, the diopter of the third defocus microstructure region is -4.50D, and the photometric range of the central optical correction region is +0.00D to +2.00D.

[0013] The advantages of the present invention compared with the prior art are as follows: By setting multi-ring annular spherical lens defocus, the filling rate of the prevention and control functional area is increased, and the effect of delaying the growth of the eye axis is better. At the same time, defocus microstructure areas with different diopters are arranged from the inside to the outside, which can delay the growth of the eye axis according to different diopters when the eyeball moves to different angles. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic structural diagram of an annular defocus spectacle lens for preventing and delaying the development of myopia.

[0015] As shown in the figure: 1. Lens body; 2. Central optical correction area; 3. First defocus microstructure area; 4. Second defocus microstructure area; 5. Third defocus microstructure area. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] The present invention will be further described in detail below with reference to the accompanying drawings.

[0017] Combined with the attached Figure 1 , an annular defocus spectacle lens for preventing and delaying the development of myopia, comprising a lens body 1, a correction area is provided inside the lens body 1, a central optical correction area 2 is provided inside the correction area, and the correction area includes 12 defocus ring structures arranged from the inside to the outside;

[0018] The first defocus ring structure to the fourth defocus ring structure from the inside to the outside form the first defocus microstructure area 3, the fifth defocus ring structure to the eighth defocus ring structure from the inside to the outside form the second defocus microstructure area 4, and the ninth defocus ring structure to the twelfth defocus ring structure from the inside to the outside form the third defocus microstructure area 5. The total diameter of the lens body 1 is 70 mm, the diameter of the functional area is 54 mm, and the diameter of the optical correction area is 8 mm. Further, the diopter range of the central optical correction area 2 can be set to +2.00D to -10.00D for correcting vision, and it is made according to the optometry prescription. The diameters of the 12 defocus ring structures are all set to 1 mm, and the defocus diopter range is set to +10.00D to -10.00D.

[0019] Specific embodiment 1 of low positive defocus is as follows: The diopter of the first defocus microstructure area 3 is +3.50D, the diopter of the second defocus microstructure area 4 is +4.00D, the diopter of the third defocus microstructure area 5 is +4.50D, and the diopter range of the central optical correction area 2 is set to +2.00D to -10.00D. While ensuring a good prevention and control effect, it is easier to adapt to in the initial stage of wearing, reducing the sense of blur and distortion.

[0020] Specific Embodiment 2: Low negative defocus is as follows: The diopter of the first defocus microstructure region 3 is -3.50D, the diopter of the second defocus microstructure region 4 is -4.00D, the diopter of the third defocus microstructure region 5 is -4.50D, and the diopter range of the central optical correction region 2 is set from +2.00D to -10.00D. While ensuring a good prevention and control effect, it is easier to adapt to in the initial stage of wearing, reducing the sense of blurriness and distortion.

[0021] Specific Embodiment 3: High positive defocus is as follows: The diopter of the first defocus microstructure region 3 is +4.50D, the diopter of the second defocus microstructure region 4 is +5.00D, the diopter of the third defocus microstructure region 5 is +5.50D, and the diopter range of the central optical correction region 2 is set from +2.00D to -10.00D. With a higher defocus amount and a stronger prevention and control effect, it is more suitable for high myopia, such as above -5.00D.

[0022] Specific Embodiment 4: High negative defocus is as follows: The diopter of the first defocus microstructure region 3 is -4.50D, the diopter of the second defocus microstructure region 4 is -5.00D, the diopter of the third defocus microstructure region 5 is -5.50D, and the diopter range of the central optical correction region 2 is set from +2.00D to -10.00D. With a higher defocus amount and a stronger prevention and control effect, it is more suitable for high myopia, such as above -5.00D.

[0023] Specific Embodiment 5: Plano and low positive spherical lens defocus for myopia prevention is as follows: The diopter of the first defocus microstructure region 3 is +3.50D, the diopter of the second defocus microstructure region 4 is +4.00D, the diopter of the third defocus microstructure region 5 is +4.50D, and the diopter range of the central optical correction region 2 is from 0.00D to +2.00D. It is applicable to children in the early stage of myopia with a hyperopic reserve lower than the normal value. By providing a low positive spherical lens through the central correction optical region, the development speed of myopia can be delayed, and the onset time of myopia can be postponed.

[0024] Specific Embodiment 6: Plano and low negative spherical lens defocus for myopia prevention is as follows: The diopter of the first defocus microstructure region 3 is -3.50D, the diopter of the second defocus microstructure region 4 is -4.00D, the diopter of the third defocus microstructure region 5 is -4.50D, and the diopter range of the central optical correction region 2 is from 0.00D to +2.00D. It is applicable to children in the early stage of myopia with a hyperopic reserve lower than the normal value. By providing a low positive spherical lens through the central correction optical region, the development speed of myopia can be delayed, and the onset time of myopia can be postponed.

[0025] In the present invention, a defocus ring structure is formed by attaching a positive spherical lens or a negative spherical lens to the lens, and at the same time, diopters of different intensities are set from the inside to the outside, so that the light is diffused to different degrees after entering the eyeball, and the peripheral light no longer forms an image on the retina, and a moderate defocus spot is formed on the peripheral retina, thereby purposefully reducing the eye's recognition ability of high-spatial-frequency images, avoiding frequent stimulation of the peripheral retina by high-contrast signals, slowing down the consequence of rapid posterior growth of the eye axis, and effectively delaying the progression speed of myopia.

[0026] The above description of the present invention and its implementation manners is not restrictive. What is shown in the drawings is only one of the implementation manners of the present invention, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and design similar structural manners and embodiments without creative efforts without departing from the gist of the present invention, they shall fall within the protection scope of the present invention.

Claims

1. A toroidal defocus spectacle lens for preventing and delaying the development of 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, wherein: The correction area includes 12 defocus ring structures arranged from the inside to the outside; From the inside to the outside, the first defocus ring structure to the fourth defocus ring structure form a first defocus microstructure area (3), from the inside to the outside, the fifth defocus ring structure to the eighth defocus ring structure form a second defocus microstructure area (4), and from the inside to the outside, the ninth defocus ring structure to the twelfth defocus ring structure form a third defocus microstructure area (5). The central optical correction area (2) is set to 8 mm, and the central optical correction area (2) has a luminous power range of +2.00D to -10.00D. The diameters of the 12 defocus ring structures are all set to 1 mm, and the defocus diopter range is +10.00D to -10.00D.

2. The annular defocused spectacle lens for preventing and delaying the progression of myopia according to claim 1, characterized in that: The diopter of the first defocus microstructure area (3) is +3.50D, the diopter of the second defocus microstructure area (4) is +4.00D, the diopter of the third defocus microstructure area (5) is +4.50D, and the diopter range of the central optical correction area (2) is set to +2.00D to -10.00D.

3. The annular defocused spectacle lens for preventing and delaying the progression of myopia according to claim 1, characterized in that: The diopter of the first defocus microstructure area (3) is -3.50D, the diopter of the second defocus microstructure area (4) is -4.00D, the diopter of the third defocus microstructure area (5) is -4.50D, and the diopter range of the central optical correction area (2) is set to +2.00D to -10.00D.

4. The annular defocused spectacle lens for preventing and delaying the progression of myopia according to claim 1, characterized in that: The diopter of the first defocus microstructure area (3) is +4.50D, the diopter of the second defocus microstructure area (4) is +5.00D, the diopter of the third defocus microstructure area (5) is +5.50D, and the diopter range of the central optical correction area (2) is set to +2.00D to -10.00D.

5. The annular defocused spectacle lens for preventing and delaying the progression of myopia according to claim 1, characterized in that: The diopter of the first defocus microstructure area (3) is -4.50D, the diopter of the second defocus microstructure area (4) is -5.00D, the diopter of the third defocus microstructure area (5) is -5.50D, and the diopter range of the central optical correction area (2) is +2.00D to -10.00D.

6. The annular defocused spectacle lens for preventing and delaying the progression of myopia according to claim 2, characterized in that: The diopter of the first defocus microstructure area (3) is +3.50D, the diopter of the second defocus microstructure area (4) is +4.00D, the diopter of the third defocus microstructure area (5) is +4.50D, and the diopter range of the central optical correction area (2) is +0.00D to +2.00D.

7. The annular defocused spectacle lens for preventing and delaying the progression of myopia according to claim 3, characterized in that: The diopter of the first defocus microstructure area (3) is -3.50D, the diopter of the second defocus microstructure area (4) is -4.00D, the diopter of the third defocus microstructure area (5) is -4.50D, and the diopter range of the central optical correction area (2) is +0.00D to +2.00D.

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