Myopia control lenses based on two-way adjustment of light perception and defocus

Abstract

The present invention relates to the technical field of glasses, specifically a myopia control lens based on light perception and defocus bidirectional adjustment, including a lens body, and a film layer covering one side of the lens, a plurality of light particles are provided on the film layer, and the light particles are evenly distributed, and a plurality of defocus structures are provided on the lens body or the film layer, and the defocus structures are distributed in an annular shape; the defocus structure includes a plurality of lens groups, and the lens group includes a lens body, and an ear lens adjacent to the lens body, and the diameter of the ear lens is smaller than the diameter of the lens body; the number of ear lenses in each lens group is two, and both ear lenses are adjacent to the lens body; the defocus amount of the lens body is greater than the defocus amount of the ear lens; the lens body includes a correction center, and an annular treatment area centered on the correction center, and the light particles and the defocus structure overlap with the annular treatment area. The adoption of this scheme can effectively delay the deepening of myopia and control astigmatism.

Description

Technical Field

[0001] The invention relates to the technical field of glasses, in particular to a myopia control lens based on bidirectional adjustment of light perception and defocus. Background Art

[0002] The importance of glasses to myopic people is self-evident. They are an indispensable auxiliary tool in the daily life of myopic people. They not only help correct vision and ensure clear vision, but also greatly affect the quality of life and learning and work efficiency of myopic people. Traditional methods of correcting myopia mainly include wearing frame glasses, contact lenses, and orthokeratology lenses (OK lenses) that have emerged in recent years. Among them, frame glasses are still the preferred correction method for the majority of myopic patients because of their convenience and high safety. However, although traditional glasses can make the patient's field of vision clear, they have limited effect in controlling the progression of myopia. Studies have shown that although the focused imaging of existing glasses is on the retina, its peripheral imaging falls behind the retina, which can easily cause hyperopic defocus, stimulate the axial elongation of the eyeball, and may lead to worsening of myopia. Summary of the invention

[0003] The present invention aims to provide a myopia control lens based on bidirectional adjustment of light perception and defocus, which can effectively delay the progression of myopia and control astigmatism.

[0004] The present invention provides the following basic scheme:

[0005] A myopia control lens based on bidirectional adjustment of light sensitivity and defocus comprises a lens body and a film layer covering one side of the lens, a plurality of light particles are opened on the film layer, and the light particles are evenly distributed, and a plurality of defocus structures are opened on the lens body or the film layer, and the defocus structures are distributed in a ring.

[0006] Furthermore, the defocusing structure includes a plurality of lens groups, the lens groups include a lens body, and ear lenses adjacent to the lens body, and a diameter of the ear lenses is smaller than a diameter of the lens body.

[0007] Furthermore, there are two ear lenses in each lens group, and both ear lenses are adjacent to the lens body.

[0008] Furthermore, the defocus amount of the lens body is greater than the defocus amount of the ear lens.

[0009] Furthermore, the lens body includes a correction center and an annular treatment area centered on the correction center, and the light particles and the defocus structure overlap with the annular treatment area.

[0010] Furthermore, the defocusing structures are distributed in a ring shape to form a plurality of concentric defocusing rings, and the defocusing structures of adjacent defocusing rings are arranged in an alternating manner.

[0011] Furthermore, the number of defocusing structures in each defocusing ring is the same.

[0012] Further, the number of lens groups in the defocus structure of the defocus ring far from the correction center is greater than the number of lens groups in the defocus structure of the defocus ring adjacent to the correction center.

[0013] Furthermore, the lens body of the lens group in the same defocus ring and one ear lens are inscribed in a circle with the correction center as the center, and the other ear lens is located in the circle.

[0014] Furthermore, the defocus of the lens body is 4.5D, and the defocus of the ear lens is 3.5D.

[0015] Beneficial effects of the basic program:

[0016] 1. In this solution, the setting of the defocus structure changes the refractive power of the lens, so that the refractive power of the correction center and the annular treatment area are different, so that the convergent image of the correction center falls on the retina, and the peripheral imaging of the annular treatment area also falls on the retina or in front of the retina. By controlling the imaging position of the lens, the elongation of the eye axis is effectively controlled, thereby delaying the development of myopia. In this solution, the setting of the lens group, the larger lens body and the two smaller ear lenses form a cartoon image, which attracts the attention of buyers through the cartoon image, increases sales, and reduces the resistance of young myopic groups to glasses, which is helpful for the prevention and treatment of myopia among young people.

[0017] 2. In this solution, the light particles are arranged on the film layer and are evenly distributed, so that the light passes through the lens body along a preset route, and the lens body scatters the light regularly, thereby avoiding the occurrence of messy scattered light, causing or aggravating the wearer's visual problems such as astigmatism, and effectively controlling the wearer's visual problems such as astigmatism.

[0018] 3. In this scheme, by setting up countless light particles, a "lens fog effect" is regularly formed, so that the light signals received by adjacent cone cells are different, resulting in lower scattering to reduce contrast, thereby achieving the effect of delaying the progression of myopia. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of Embodiment 1 of the myopia control lens based on bidirectional adjustment of light perception and defocus of the present invention;

[0020] Figure 2 It is a front view of Embodiment 1 of the myopia control lens based on bidirectional adjustment of light perception and defocus of the present invention;

[0021] Figure 3 It is a structural schematic diagram of Embodiment 2 of the myopia control lens based on bidirectional adjustment of light sensitivity and defocus of the present invention. DETAILED DESCRIPTION

[0022] The following is further described in detail through specific implementation methods:

[0023] The figure marks in the drawings of the specification include: correction center 1, annular treatment area 2, defocus structure 3, lens group 4, lens body 5, ear lens 6, light particles 7, lens body 8, arc-shaped protrusion 9, main notch 10, ear notch 11.

[0024] Embodiment 1

[0025] Myopia control lenses based on two-way adjustment of light perception and defocus, such as the attached Figure 1 As shown (the light particles 7 are not shown in the figure), it includes a lens body 8 and a film layer covering one side of the lens. In this embodiment, the film layer is located on the front surface of the lens body 8. In other embodiments, the film layer is located on the back surface of the lens body 8. The front surface of the lens body 8 is the side of the lens away from the eye, which is usually convex or flat, so as to receive light from the outside and guide it into the inside of the eye. The back surface of the lens body 8 is the other side of the lens, which is usually concave, so as to match the curvature of the eyeball. In this embodiment, the lens body 8 and the film layer are integrally formed, and the lens body 8 and the film layer are made of the same material. In other embodiments, the lens body 8 and the film layer may be made of different materials.

[0026] As attached Figure 1 As shown, the lens body 8 includes a correction center 1 and an annular treatment area 2 centered on the correction center 1. In this embodiment, the correction center 1 is a circle with a diameter of 6.9 mm, and the annular treatment area 2 is a ring centered on the circle. The correction center 1 is used to correct the wearer's vision and provide a clear field of vision, and the annular treatment area 2 is used for defocusing and delaying the development of myopia.

[0027] A plurality of defocusing structures 3 are provided on the lens body 8 or the film layer, and the defocusing structures 3 overlap with the annular treatment area 2. In this embodiment, the defocusing structures 3 are provided on the side of the film layer away from the lens body 8. In other embodiments, the defocusing structures 3 are provided on the lens body 8.

[0028] As attached Figure 2 As shown, the defocus structure 3 includes a plurality of lens groups 4, and the lens group 4 includes a lens body 5 and an ear lens 6 adjacent to the lens body 5, and the number of ear lenses 6 in each lens group 4 is two. Both ear lenses 6 are adjacent to the lens body 5. Specifically, both ear lenses 6 are tangent to the lens body 5 of the same defocus structure 3, and the two ear lenses 6 of the same defocus structure 3 are separated. The diameter of the ear lens 6 is smaller than the diameter of the lens body 5, and the defocus amount of the lens body 5 is greater than the defocus amount of the ear lens 6. In this embodiment, the defocus amount of the lens body 5 is 4.5D, and the defocus amount of the ear lens 6 is 3.5D.

[0029] The defocus structures 3 are distributed in a ring shape. Specifically, the defocus structures 3 are distributed in a ring shape to form a plurality of concentric defocus rings, and the number of defocus structures 3 in each defocus ring is the same. The number of lens groups 4 in the defocus structure 3 of the defocus ring far away from the correction center 1 is greater than the number of lens groups 4 in the defocus structure 3 of the defocus ring adjacent to the correction center 1. The defocus structures 3 of adjacent defocus rings are staggered. In this embodiment, the number of defocus rings is eleven, and along the radial direction of the lens body 8, from the correction center 1 to the outside, the number of lens groups 4 in the defocus structure 3 of the defocus ring is 1, 2, 2, 2, 3, 3, 3, 4, 4, 4, 5, respectively.

[0030] In other embodiments, the number of defocus rings is seventeen. Along the radial direction of the lens body 8, from the correction center 1 to the outside, the number of lens groups 4 in the defocus structure 3 of the defocus ring is 1, 1, 2, 2, 2, 2, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, and 6 respectively.

[0031] The two ear lenses 6 of the same lens group 4 as the lens body 5 are located on the same side of the straight line passing through the correction center 1 and the axis of the lens body 5. In other embodiments, the lens body 5 of the lens group 4 in the same defocus ring and one ear lens 6 are inscribed in a circle with the correction center 1 as the center, and the other ear lens 6 is located in the circle.

[0032] The setting of the defocus structure 3 changes the refractive power of the lens, making the refractive power of the correction center 1 and the annular treatment area 2 different, so that the converged image of the correction center 1 falls on the retina, and the peripheral imaging of the annular treatment area 2 also falls on the retina or in front of the retina. By controlling the imaging position of the lens, the elongation of the eye axis is effectively controlled, thereby delaying the development of myopia. In this solution, the setting of the lens group 4, the larger lens body 5 and the two smaller ear lenses 6 form a cartoon image, which attracts the attention of buyers through the cartoon image, increases sales, and reduces the resistance of young myopic groups to glasses, which is helpful for the prevention and treatment of myopia among young people.

[0033] A number of light particles 7 are also provided on the film layer. In this embodiment, the light particles 7 are provided on the side of the film layer away from the lens body 8. The light particles 7 are evenly distributed, and overlap with the annular treatment area 2. In this embodiment, the axial direction of the light particles 7 is parallel to the optical axis of the lens, that is, the straight line passing through the optical center of the lens body 8 and perpendicular to the front surface of the lens body 8 is parallel to the axial direction of the light particles 7. In other embodiments, the axial direction of the light particles 7 is perpendicular to the side of the film layer away from the lens body 8.

[0034] At the same time, it has been found through research that high-contrast signals will promote stronger bipolar cell activity. Relatively speaking, low contrast has a weak stimulation on the visual system, which allows the eye axis to grow normally and light to gather on the retina to form a clear image; while high contrast has a very strong stimulation on the visual system, which can easily cause excessive growth of the eye axis, resulting in the inability of light to focus on the retina, causing the growth of myopia. Therefore, people who are in a high-contrast environment for a long time are more likely to develop myopia. In this solution, the design of the new light microparticles can reduce excessive light stimulation to the retina. It does not simply make the field of vision blurred, but reduces the light intensity through a simulated light path. Through the setting of the light microparticles 7, the light intensity of the light after passing through the annular treatment area 2 is changed, thereby reducing the light intensity of the light after passing through the lens, thereby reducing the contrast of the lens, thereby reducing the difference in vision between the affected cone cells and the normal cone cells, and effectively reducing the stimulation to the eye axis by controlling the photosensitivity of the cone cells, further delaying the development of myopia.

[0035] Embodiment 2

[0036] The difference between this embodiment and the first embodiment is that:

[0037] When using the lens, it needs to be polished and installed on the eyeglass frame for wearing. During polishing, the lens needs to be picked up and adjusted manually. When picking up the lens, fingers are usually used to touch the edge of the lens to avoid contamination of fingerprints, grease and other impurities on the lens surface, which increases the difficulty of subsequent lens cleaning. However, the edge of the lens is thin, and when picking up, the contact area between the finger and the edge of the lens is small. Occasionally, the lens is not stable when picked up and is easy to slip, resulting in lens damage.

[0038] In myopia control lenses based on bidirectional adjustment of light perception and defocus, as shown in the following Figure 3 As shown in the figure (the defocus structure and light particles are not shown in the figure), three notches are opened at the edge of the lens body 8, and both ends of the notches are connected to the two sides of the lens body 8, and the peripheral walls of the notches are connected to the edge of the lens body 8. An arc-shaped protrusion 9 is provided in the middle of the peripheral wall of the notch, and the side wall of the arc-shaped protrusion 9 is coplanar with the peripheral wall of the notch, that is, the side wall of the arc-shaped protrusion 9 and the peripheral wall of the notch are in the same plane, and the top of the arc-shaped protrusion 9 is an arc surface. In this embodiment, the middle part of the peripheral wall of the notch extends relatively in the circumferential direction to form the arc-shaped protrusion 9.

[0039] In this solution, the notch is set up to accommodate fingers when taking the lens. The fingers are against the arc-shaped protrusion 9, and the space between the arc-shaped protrusion 9 and the two ends of the notch is larger than the space between the arc-shaped protrusion 9 and the middle of the notch. With this setting, it is easy for fingers to enter when taking the lens, making it convenient to take the lens. Second, the notch setting does not need to increase the volume occupied by the original lens, and is suitable for the original specification of lens packaging without additional production costs.

[0040] The gaps are defined as a main gap 10 and an ear gap 11, the number of the main gap 10 is one, the number of the ear gaps 11 is two, the main gap 10 and the ear gap 11 are located on both sides of the symmetry axis of the lens body 8, and the two ear gaps 11 are symmetrically arranged. The angle between the center of the two ear gaps 11 and the center line of the lens body 8 is 60 to 100 degrees. In this embodiment, the angle between the center of the two ear gaps 11 and the center line of the lens body 8 is 90 degrees.

[0041] In this solution, the notch is set at three points. First, the three notches form a cartoon image, which is based on the same design concept as the cartoon image of the defocus structure. The cartoon image attracts the attention of buyers and increases sales. At the same time, it reduces the resistance of young myopic people to glasses, which is helpful for the prevention and treatment of myopia among young people. Second, the three notches are set. By combining the notches in pairs, the lenses can be taken. Compared with setting two notches, the lenses can be taken from multiple angles, and the lenses can be easily taken out of the packaging bag, which is convenient to take. Third, when the lenses are in use, they need to be polished according to the glasses frame. The three notches are set on both sides of the lenses. The distance between the notches makes the notches located in the area where the lenses need to be polished. With this design, the notches will not interfere with the polishing and use of the lenses.

[0042] The above is only an embodiment of the present invention. The common sense such as the known specific structure and characteristics in the scheme is not described in detail here. The ordinary technicians in the relevant field know all the common technical knowledge in the technical field of the invention before the application date or priority date, can obtain all the existing technologies in the field, and have the ability to apply the conventional experimental means before that date. The ordinary technicians in the relevant field can improve and implement this scheme in combination with their own abilities under the enlightenment given by this application. Some typical known structures or known methods should not become obstacles for ordinary technicians in the relevant field to implement this application. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, which will not affect the effect of the implementation of the present invention and the practicality of the patent. The protection scope required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. Myopia control lenses based on two-way adjustment of light perception and defocus, characterized by: The lens comprises a lens body and a film layer covering one side of the lens, a plurality of light particles are opened on the film layer, and the light particles are evenly distributed; a plurality of defocusing structures are opened on the lens body or the film layer, and the defocusing structures are distributed in a ring shape.

2. The myopia control lens based on light perception and defocus bidirectional adjustment according to claim 1, characterized in that: The defocusing structure includes a plurality of lens groups, wherein the lens groups include a lens body and an ear lens adjacent to the lens body, wherein a diameter of the ear lens is smaller than a diameter of the lens body.

3. The myopia control lens based on bidirectional adjustment of light perception and defocus according to claim 2, characterized in that: There are two ear lenses in each lens group, and both ear lenses are adjacent to the lens body.

4. The myopia control lens based on light perception and defocus bidirectional adjustment according to claim 2, characterized in that: The defocus amount of the lens body is greater than the defocus amount of the ear lens.

5. The myopia control lens based on light perception and defocus bidirectional adjustment according to claim 3, characterized in that: The lens body includes a correction center and an annular treatment area centered on the correction center, and the light particles and the defocus structure overlap with the annular treatment area.

6. The myopia control lens based on light perception and defocus bidirectional adjustment according to claim 5, characterized in that: The defocusing structures are distributed in a ring shape to form a plurality of concentric defocusing rings, and the defocusing structures of adjacent defocusing rings are arranged in a staggered manner.

7. The myopia control lens based on light perception and defocus bidirectional adjustment according to claim 6, characterized in that: The number of defocusing structures in each defocusing ring is the same.

8. The myopia control lens based on light perception and defocus bidirectional adjustment according to claim 7, characterized in that: The number of lens groups in the defocus structure of the defocus ring far from the correction center is greater than the number of lens groups in the defocus structure of the defocus ring adjacent to the correction center.

9. The myopia control lens based on light perception and defocus bidirectional adjustment according to claim 8, characterized in that: The lens body of the lens group in the same defocus ring and one ear lens are inscribed in a circle with the correction center as the center, and the other ear lens is located in the circle.

10. The myopia control lens based on bidirectional adjustment of light perception and defocus according to any one of claims 2 to 9, characterized in that: The defocus of the lens body is 4.5D, and the defocus of the ear lens is 3.5D.

Images