Eyeglass lenses and treatment devices for preventing refractive deterioration and visual fatigue caused by visual field asymmetry

Abstract

The present invention provides a spectacle lens and a therapeutic apparatus for preventing refractive deterioration and visual fatigue caused by visual field asymmetry, belonging to the technical field of spectacle lenses and therapeutic apparatuses for eye care and treatment. The visual area is located above the center of the spectacle lens, and the horizontal distance from the geometric center or theoretical geometric center of the visual area to the lower edge of the peripheral visual area is greater than the horizontal distance from the geometric center or theoretical geometric center of the visual area to the upper edge of the peripheral visual area; a defocusing lens is provided on the peripheral visual area; the visual area is a hole or is provided with a non-defocusing correction lens, and the non-defocusing correction lens includes a myopic non-defocusing correction lens or a hyperopic non-defocusing correction lens, and also an astigmatic non-defocusing correction lens; an astigmatic lens with the same or substantially the same astigmatic power as the above astigmatic non-defocusing correction lens is further compounded on the peripheral visual area. The present invention can effectively prevent fatigue and refractive error deterioration caused by the deterioration of eye asymmetry, and has a good effect.

Description

Technical Field

[0001] The invention belongs to the technical field of eyeglass lenses and therapeutic instruments for eye health care and treatment. Background Art

[0002] The existing technology for preventing and controlling myopia is generally designed according to the complete symmetry of the near objects in the peripheral area of ​​the visual field, but in fact, the near objects in the peripheral area of ​​the extraocular visual field are not very symmetrical, so the design does not conform to the actual situation. When reading and writing, due to the long-term asymmetry of the distance between the upper and lower sides of the extraocular visual field, the near area will cause serious deterioration of eye refraction and visual fatigue, thereby further exacerbating the further deterioration of hyperopia, myopia and astigmatism. Moreover, the deterioration caused by this cannot be solved by the existing technology. The existing technology and the actual glasses are generally undercorrected when correcting refractive errors. For example, the current textbooks and many authoritative ophthalmic tool guides, ophthalmology and other books require that glasses be corrected with some degrees less, which is not full correction, but undercorrection. Myopia is still defined as the cause of lens thickening caused by near adjustment, and it is mistakenly believed that undercorrection can prevent lens thickening. They all require glasses to correct myopia with some degrees less, which is not true correction, but defocus correction (undercorrection will produce myopic defocus in the central area of ​​the retina). My research found that this is the cause of accommodative visual fatigue and is not conducive to controlling the deterioration of diopter. In addition, the existing technology never considers the correction of astigmatism in the peripheral visual area, which will also lead to refractive deterioration and visual fatigue. Therefore, the existing technology cannot effectively control the deterioration of hyperopia, myopia and astigmatism and effectively solve the visual fatigue problem caused by them. Summary of the invention

[0003] The purpose of the present invention is to provide an eyeglass lens and a therapeutic device for preventing the deterioration of eye refraction and visual fatigue caused by visual asymmetry, which can solve the shortcomings of the above-mentioned prior art and effectively prevent and treat the deterioration of eye refraction and visual fatigue caused by the asymmetry of the near objects in the peripheral field of vision, and has a good effect.

[0004] To solve the above problems, the main technical solution of the present invention is: a spectacle lens for preventing refractive deterioration and visual fatigue caused by visual field asymmetry. The spectacle lens is provided with a visual area S1 and a peripheral visual area S2, and is characterized in that: the visual area S1 is located above the center of the spectacle lens, and the horizontal distance from the geometric center or theoretical geometric center of the visual area S1 to the lower edge of the peripheral visual area S2 is greater than the horizontal distance from the geometric center or theoretical geometric center of the visual area S1 to the upper edge of the peripheral visual area S2; a defocus lens is provided on the peripheral visual area S2, and 5DS > the diopter of the defocus lens > 0.25DS; the visual area S1 is a hole or is provided with a non-defocus correction lens, and the non-defocus correction lens includes a myopic non-defocus correction lens or a hyperopic non-defocus correction lens, and also an astigmatic non-defocus correction lens; an astigmatic lens power that is the same as or substantially the same as (by "substantially the same" is meant that the difference between the two does not exceed 20% of the former) the astigmatism of the above-mentioned astigmatic non-defocus correction lens is also compounded on the peripheral visual area S2; the area of the visual area S1 < 700 square millimeters.

[0005] In this application, the so-called geometric center refers to the center of a regular geometric shape; the so-called theoretical geometric center refers to the intersection of the parallel line of the midpoint between the two horizontal lines of the outermost edges above and below of an irregular geometric shape and the vertical line of the midpoint between the two vertical lines of the outermost edges on the left and right.

[0006] Preferably, the total area of the lens > 900 square millimeters.

[0007] Preferably, the distance from the geometric center or theoretical geometric center of the visual area S1 to the horizontal line of the lower edge of the peripheral visual area S2 is greater than or equal to 1 mm of the distance from the geometric center or theoretical geometric center of the visual area S1 to the horizontal line of the upper edge of the peripheral visual area S2.

[0008] Preferably, the distance from the geometric center or theoretical geometric center of the visual area S1 to the horizontal line of the lower edge of the peripheral visual area S2 is greater than the distance from the geometric center or theoretical geometric center of the visual area S1 to the horizontal line of the upper edge of the peripheral visual area S2 by 3 - 40 millimeters.

[0009] Preferably, the distance from the geometric center or theoretical geometric center of the visual area S1 to the horizontal line of the lower edge of the peripheral visual area S2 is greater than the distance from the geometric center of the visual area S1 to the horizontal line of the upper edge of the peripheral visual area S2 by 4 - 24 millimeters.

[0010] Preferably, the distance from the geometric center or theoretical geometric center of the visual area S1 to the lower edge of the peripheral visual area S2 is greater than the distance from the geometric center or theoretical geometric center of the visual area S1 to the horizontal line of the upper edge of the peripheral visual area S2 by 6 - 14 millimeters.

[0011] Preferably, the visual area S1 is circular, with a diameter of 5 - 25 mm; the diameter is 10 - 20 mm.

[0012] A pair of glasses for preventing asymmetric visual field from causing refractive deterioration and visual fatigue, characterized in that: it includes any of the above-mentioned glasses lenses for preventing asymmetric visual field from causing refractive deterioration and visual fatigue, and the glasses are ordinary frame glasses or clip-on hanging glasses.

[0013] A pair of glasses for preventing refractive deterioration and visual fatigue caused by visual field asymmetry, characterized in that it includes a lens for preventing refractive deterioration and visual fatigue caused by visual field asymmetry as described in item 1 or 2 above, and the glasses are contact lenses.

[0014] A therapeutic device for preventing refractive deterioration and visual fatigue caused by visual field asymmetry, characterized in that it includes an eyeglass lens as described in any of the above items for preventing eye refractive deterioration and visual fatigue caused by visual field asymmetry, and the therapeutic device includes a desktop reading and writing mirror, a reading and writing prevention and treatment device, and a prevention and treatment device mounted on a table.

[0015] The principle of the present invention is: according to the defocus animal experimental research, see Xu Guangdi's (Prevention and Treatment of Juvenile Myopia) page 48, lines 8 to 12, which is a study of the defocus experimental analysis and the experimental observation of Zhu Xiaosong of Peking University School of Medicine: "Selectively covering part of the retina with eye masks of different shapes can expand the sclera symmetrical to it, causing asymmetry in the shape of the eyeball and forming partial myopia. This confirms that the reaction of form deprivation myopia is local to the eyeball, and the growth of the sclera is mainly regulated by the retina." I have done similar experiments, denied the erroneous understanding of form deprivation in the original experiment, and obtained new important results. I have found that the eye mask blocking in our experiment is actually an object that is very close in front of the eyes. Its optical imaging falls on the corresponding retina, and the optical defocus of the retina occurs at that part, resulting in abnormal changes in the sclera at that part, indicating that the optical defocus of different parts of the retina will affect the morphology of that part. Therefore, to prevent this situation, targeted protection should be provided according to the specific needs of the field of vision. Therefore, the shape of the field of vision must be taken into consideration when designing defocus lenses. The shape, size and defocus degree of the design area must be targeted. Only correct design can prevent the occurrence of abnormal refractive power problems such as asymmetric eye shape caused by asymmetric defocusing and other problems.

[0016] Furthermore, through further research and statistics, I found that when a person looks at nearby objects, the central visual field corresponds to the nearby objects, while the upper and lower peripheral visual fields correspond to objects at different distances in the visual field. Generally, the upper region corresponds to bright distant objects, and the lower region corresponds to relatively dim nearby objects. Therefore, the upper and lower situations are very different, that is, the visual field states of the upper and lower regions are asymmetric. To solve the myopia problem caused by looking at nearby objects, it is necessary to design an asymmetric upper and lower visual field region structure on the lens. Therefore, the central visual field must be designed above the center of the lens to ensure that the central vision is relatively bright and avoid interference, rather than at the center or below the center. As a result, the myopic defocus range in the lower region is increased, and the myopic defocus interference in the upper region is reduced. Thus, the problems existing in the prior art are effectively solved.

[0017] The beneficial effects of the present invention are as follows: It can solve the deficiencies existing in the above prior art, and effectively prevent and treat the problems of eye refractive deterioration and visual fatigue caused by the asymmetry of the upper and lower distances of nearby objects in the peripheral visual field, with good effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a schematic structural diagram of the spectacle lens of Embodiment 1 of the present invention.

[0020] Figure 2 It is a schematic diagram of the shape and principle of the right eye visual field of an actual person and a schematic diagram of the theoretical geometric center of the visual area.

[0021] Figure 3 It is a schematic structural diagram of the ordinary frame glasses of Embodiment 2 of the present invention.

[0022] Figure 4 It is a schematic structural diagram of the contact lens of Embodiment 3 of the present invention.

[0023] Figure 5 It is a schematic structural diagram of the desktop reading and writing glasses of Embodiment 4 of the present invention.

[0024] Among them, the reference numerals in the figures are as follows: S1 - visual area, S2 - peripheral visual area, A - spherical power, B - spherical power, C - cylindrical power, a - spectacle frame, b - movable crossbar, c - lifting column, d - unobstructed bracket, e - base plate; o - theoretical geometric center, L1 - horizontal distance from the geometric center or theoretical geometric center of the visual area S1 to the lower edge of the peripheral visual area S2, L2 - horizontal distance from the geometric center or theoretical geometric center of the visual area S1 to the upper edge of the peripheral visual area S2, H - L1 - L2. Detailed implementation manners

[0025] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0026] Please refer to Figure 1 , and now the present invention will be described. As a spectacle lens provided by the present invention for preventing refractive deterioration and visual fatigue caused by asymmetric vision, the spectacle lens is provided with a visual area S1 and a peripheral visual area S2, and is characterized in that: the visual area S1 is located above the center of the spectacle lens, and the horizontal distance from the geometric center or theoretical geometric center of the visual area S1 to the lower edge of the peripheral visual area S2 is greater than the horizontal distance from the geometric center or theoretical geometric center of the visual area S1 to the upper edge of the peripheral visual area S2; a defocus lens is provided on the peripheral visual area S2, 5DS > defocus lens refractive power > 0.25DS; the visual area S1 is a hole or is provided with a non-defocus correction lens, and the non-defocus correction lens includes a myopic non-defocus correction lens or a hyperopic non-defocus correction lens, and also an astigmatic non-defocus correction lens; an astigmatic power that is the same or substantially the same as the astigmatic power of the above astigmatic non-defocus correction lens is also compounded on the peripheral visual area S2; the area of the visual area S1 < 700 square millimeters.

[0027] The present invention can solve the deficiencies existing in the above-mentioned prior art, and has the problem of effectively preventing eye refractive deterioration and visual fatigue caused by the asymmetry of near objects in the peripheral area of vision in terms of up, down, near and far.

[0028] As a specific implementation manner provided by the present invention. Refer to Figure 1 . Preferably, the total area of the lens > 900 square millimeters. The effect of preventing refractive deterioration and visual fatigue caused by asymmetric vision is better.

[0029] As a specific implementation manner provided by the present invention. For the spectacle lens for preventing refractive deterioration and visual fatigue caused by asymmetric vision, the astigmatic power is not 0 degree. The myopia range is -25DS - 0DS, the hyperopia range is 0DS - 10DS, and the astigmatic power range is -8DC - +8DC.

[0030] As a specific implementation manner provided by the present invention. Refer toFigure 1 Preferably, the distance from the geometric center or the theoretical geometric center of the visual area S1 to the horizontal line at the lower edge of the peripheral visual area S2 is greater than or equal to 1 mm of the distance from the geometric center or the theoretical geometric center of the visual area S1 to the horizontal line at the upper edge of the peripheral visual area S2.

[0031] As a specific embodiment provided by the present invention. Preferably, the distance from the geometric center or the theoretical geometric center of the visual area S1 to the horizontal line at the lower edge of the peripheral visual area S2 is greater than the distance from the geometric center or the theoretical geometric center of the visual area S1 to the horizontal line at the upper edge of the peripheral visual area S2 by 3 - 40 mm. It has a better effect in preventing refractive deterioration and visual fatigue caused by visual field asymmetry.

[0032] As a specific embodiment provided by the present invention. Preferably, the distance from the geometric center or the theoretical geometric center of the visual area S1 to the horizontal line at the lower edge of the peripheral visual area S2 is greater than the distance from the geometric center of the visual area S1 to the horizontal line at the upper edge of the peripheral visual area S2 by 4 - 24 mm. It has a better effect in preventing refractive deterioration and visual fatigue caused by visual field asymmetry.

[0033] As a specific embodiment provided by the present invention. Preferably, the distance from the geometric center or the theoretical geometric center of the visual area S1 to the lower edge of the peripheral visual area S2 is greater than the distance from the geometric center or the theoretical geometric center of the visual area S1 to the horizontal line at the upper edge of the peripheral visual area S2 by 6 - 14 mm. It has the best effect in preventing refractive deterioration and visual fatigue caused by visual field asymmetry.

[0034] As a specific embodiment provided by the present invention. See Figure 1 Preferably, the visual area S1 is circular with a diameter of 5 - 25 mm; preferably with a diameter of 10 - 20 mm. It has a better effect in preventing refractive deterioration and visual fatigue caused by visual field asymmetry.

[0035] As a specific embodiment provided by the present invention. See Figure 3 A pair of glasses for preventing refractive deterioration and visual fatigue caused by visual field asymmetry, characterized in that: it includes the glasses lens for preventing refractive deterioration and visual fatigue caused by visual field asymmetry described in any one of the above, and the glasses are ordinary frame glasses or clip-on glasses.

[0036] As a specific embodiment provided by the present invention. See Figure 4 A pair of glasses for preventing refractive deterioration and visual fatigue caused by visual field asymmetry, characterized in that: it includes the glasses lens for preventing eye refractive deterioration and visual fatigue caused by visual field asymmetry described in item 1 or 2 above, and the glasses are contact lenses.

[0037] As a specific embodiment provided by the present invention. See Figure 5. Desktop reading and writing glasses. A therapeutic device for preventing refractive deterioration and visual fatigue caused by visual field asymmetry, including the spectacle lenses for preventing eye refractive deterioration and visual fatigue caused by visual field asymmetry as described in any one of the above, the therapeutic device includes a desktop reading and writing glasses, a reading and writing prevention and treatment device, and a prevention and treatment device installed on the table.

[0038] Some embodiments of the present invention are shown in Table 1.

[0039] Table 1

[0040]

[0041]

[0042] Explanation of Table 1:

[0043] 1. As shown in Table 1, the examples are the examples of 6 kinds of eye refractive power conditions. H is the difference between the horizontal line distance L1 from the geometric center or theoretical geometric center of the visual area S1 to the lower edge of the peripheral visual area S2 and the horizontal line distance L2 from the geometric center or theoretical geometric center of the visual area S1 to the upper edge of the peripheral visual area S2, which is abbreviated as the height difference, and L1 - L2 > 0.

[0044] 2. Check the refractive power of the eye according to the method of scientific optometry and fitting glasses, and strictly implement the principle requirements of not under-correcting or over-correcting to make a glasses prescription.

[0045] 3. Use this prescription as the glasses fitting parameter of the refractive power on S1 in the lens of the present invention. The refractive power on S2 takes values according to the requirements of the invention.

[0046] 4. Six different groups of parameter values of H and the diameter of S1 are selected respectively.

[0047] 5. The area of the visual area S1 < 700 square millimeters, and the total area of the lens > 900 square millimeters.

[0048] The clinical experimental report of the present invention is as follows:

[0049] Experimental grouping:

[0050] Compare the effects of the present invention with the prior art of a multi-element lens for controlling defocus and eye refractive power and its application with the Chinese invention patent number: ZL201210196959.8. It is divided into the experimental group and the control group of the invention.

[0051] 1) In the first control group, there are myopic or astigmatic patients aged 6 - 17. There are 100 people in the experimental group of the present invention and 100 people in the control group.

[0052] 2) In the second control group, there are hyperopic or astigmatic patients aged 6 - 12. There are 50 people in the experimental group of the present invention and 50 people in the control group.

[0053] 3) The third control group consists of teenagers aged 6 - 13 with normal eyesight. In the experimental group of the present invention, there are 25 people, and in the control group, there are 25 people.

[0054] Experimental method: Prepare glasses according to respective regulations and wear them all day long. Experimental time: Check the results after two years and one month and make comparisons.

[0055] Within two years and one month, conduct examinations once a month: items such as axial length, B - ultrasound, and other routine optometry.

[0056] Experimental results:

[0057] I) Efficacy criteria:

[0058] Marked effect - The objectively measured refractive error does not increase. When checking visual acuity at a speed of 1 second, the corrected visual acuity does not decrease. The growth rate of the axial length is lower than the average growth value of the same age group based on experience, and the B - ultrasound result shows no abnormal changes.

[0059] Effective - The increase in the objectively measured refractive error is lower than the average growth value of the same age group. When checking visual acuity at a speed of 1 second, the corrected visual acuity does not decrease. The growth rate of the axial length is lower than the average growth value of the same age group based on experience, and the B - ultrasound result shows no abnormal changes.

[0060] Ineffective - The increase in the objectively measured refractive error reaches the average growth value of the same age group. When checking visual acuity at a speed of 1 second, the visual acuity decreases. The growth rate of the axial length is equal to the average growth value of the same age group based on experience, and the B - ultrasound result may or may not show abnormal changes.

[0061] II) Examination results:

[0062] 1) The first control group: In the experimental group, 83 people had a marked effect, 14 people had an effective effect, and 3 people were ineffective.

[0063] In the control group, 48 people had a marked effect, 46 people had an effective effect, and 6 people were ineffective.

[0064] 2) The second control group: In the experimental group, 46 people had a marked effect, 3 people had an effective effect, and 1 person was ineffective.

[0065] In the control group, 22 people had a marked effect, 25 people had an effective effect, and 3 people were ineffective.

[0066] 3) The third control group: In the experimental group, 25 people had a marked effect, 0 people had an effective effect, and 0 people were ineffective.

[0067] In the control group, 8 people had a marked effect, 13 people had an effective effect, and 4 people were ineffective.

[0068] III) Result analysis:

[0069] Statistical conclusion: Among all 175 people in the experimental group, 154 teenagers whose refractive power increase was completely prevented by the present invention had remarkable effects, accounting for 88% of the total number of the experiment. Among all 175 people in the control group, 78 teenagers whose refractive power increase was completely prevented by the existing technology for comparison, accounting for 44.6% of the total number of the control group. In the above experiment, the improvement of visual fatigue phenomenon was common in the experimental group, with an effective rate of 90%, while there was no improvement in visual fatigue in the control group, with an effective rate of 0%. (Note: For hyperopia, stabilizing the refractive power and maintaining healthy eye vision are the goals, and reducing the hyperopia degree is not conducive to eye health. Therefore, preventing abnormal reduction of the hyperopia degree is a good evaluation criterion).

[0070] Conclusion: Compared with the control group, the experimental group of the present invention has remarkable effects.

[0071] Those skilled in the art can implement the parts not described above.

[0072] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A spectacle lens for preventing refractive deterioration and visual fatigue caused by visual field asymmetry, wherein a visual area S1 and a peripheral visual area S2 are provided on the spectacle lens. It is characterized in that: The visual area S1 is located above the center of the spectacle lens. The horizontal distance from the geometric center or theoretical geometric center of the visual area S1 to the lower edge of the peripheral visual area S2 is greater than the horizontal distance from the geometric center or theoretical geometric center of the visual area S1 to the upper edge of the peripheral visual area S2; a defocus lens is provided on the peripheral visual area S2, and 5DS > the diopter of the defocus lens > 0.25DS; the visual area S1 is a hole or is provided with a non-defocus correction lens, and the non-defocus correction lens includes a myopic non-defocus correction lens or a hyperopic non-defocus correction lens, and also an astigmatic non-defocus correction lens; an astigmatic power that is the same or substantially the same as the astigmatic power of the above astigmatic non-defocus correction lens is also compounded on the peripheral visual area S2; the area of the visual area S1 < 700 square millimeters; The astigmatic power is not 0 diopter; The total area of the lens > 900 square millimeters; The distance from the geometric center or theoretical geometric center of the visual area S1 to the horizontal line of the lower edge of the peripheral visual area S2 is greater than the distance from the geometric center or theoretical geometric center of the visual area S1 to the horizontal line of the upper edge of the peripheral visual area S2 by 3 - 40 millimeters.

2. The spectacle lens for preventing refractive deterioration and visual fatigue caused by visual field asymmetry according to claim 1, It is characterized in that: The distance from the geometric center or theoretical geometric center of the visual area S1 to the horizontal line of the lower edge of the peripheral visual area S2 is greater than the distance from the geometric center horizontal line of the visual area S1 to the horizontal line of the upper edge of the peripheral visual area S2 by 4 - 24 millimeters.

3. The spectacle lens for preventing refractive deterioration and visual fatigue caused by visual field asymmetry according to claim 2, It is characterized in that: The distance from the geometric center or theoretical geometric center of the visual area S1 to the lower edge of the peripheral visual area S2 is greater than the distance from the geometric center or theoretical geometric center of the visual area S1 to the horizontal line of the upper edge of the peripheral visual area S2 by 6 - 14 millimeters.

4. The spectacle lens for preventing refractive deterioration and visual fatigue caused by visual field asymmetry according to any one of claims 1 - 3, It is characterized in that: The visual area S1 is circular, with a diameter of 5 - 25 mm.

5. A pair of glasses for preventing refractive deterioration and visual fatigue caused by visual field asymmetry, It is characterized in that: It includes the spectacle lens for preventing refractive deterioration and visual fatigue caused by visual field asymmetry according to any one of claims 1 - 4, and the glasses are ordinary frame glasses or clip-on hanging glasses.

6. A therapeutic instrument for preventing refractive deterioration and visual fatigue caused by visual field asymmetry, It is characterized in that: It includes the spectacle lens for preventing refractive deterioration and visual fatigue caused by visual field asymmetry according to any one of claims 1 - 4, and the therapeutic instrument includes a desktop reading and writing mirror, a reading and writing prevention and treatment instrument, and a prevention and treatment instrument installed on the table.

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