CN218413111U - Myopia lens and frame glasses - Google Patents
Myopia lens and frame glasses Download PDFInfo
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- CN218413111U CN218413111U CN202222744312.6U CN202222744312U CN218413111U CN 218413111 U CN218413111 U CN 218413111U CN 202222744312 U CN202222744312 U CN 202222744312U CN 218413111 U CN218413111 U CN 218413111U
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- 208000001491 myopia Diseases 0.000 title claims abstract description 29
- 230000004379 myopia Effects 0.000 title claims abstract description 24
- 239000011521 glass Substances 0.000 title abstract description 12
- 230000003287 optical effect Effects 0.000 claims abstract description 117
- 238000012937 correction Methods 0.000 claims abstract description 36
- 238000009826 distribution Methods 0.000 claims abstract description 11
- 230000000694 effects Effects 0.000 abstract description 9
- 230000002265 prevention Effects 0.000 abstract description 7
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 208000002173 dizziness Diseases 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 2
- 238000013461 design Methods 0.000 description 6
- 230000004438 eyesight Effects 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 4
- 230000002207 retinal effect Effects 0.000 description 4
- 210000004087 cornea Anatomy 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 241001529734 Ocimum Species 0.000 description 2
- 235000010676 Ocimum basilicum Nutrition 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 210000001525 retina Anatomy 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The utility model relates to a myopia lens and a frame glasses, wherein the center is provided with a full optical correction area, and the outer part is provided with a plurality of optical out-of-focus areas; the full-correction optical zone is formed by surrounding the same full-correction optical zone sidelines of odd-number strip shapes, the out-of-focus optical zone is formed by surrounding two out-of-focus optical zone sidelines, one out-of-focus optical zone sideline is superposed with one full-correction optical zone sideline which surrounds the full-correction optical zone, and the other out-of-focus optical zone sideline is an arc line which protrudes outwards. The beneficial effects of the utility model are that: the distribution of the focus-off areas with specific shapes and the size of the defocus amount are customized, so that the myopia prevention and control effect of teenagers can be improved, and the method is suitable for clinical popularization and application; the arrangement of the focus-separating area with a specific shape is beneficial to improving the comfort of a wearer and reducing the dizziness probability.
Description
Technical Field
The utility model belongs to the technical field of myopia prevention and control, especially, relate to a myopia lens and frame glasses.
Background
The out-of-focus soft contact lenses for myopia prevention and control, which are commonly used in clinic, are designed into two forms, namely concentric rings or bifocal lens design. Both designs compromise central vision and alter peripheral retinal imaging, the concentric ring lens design including alternating near and far distance correction and ADD addition zones to provide two focal planes or to account for both near and far vision correction and peripheral retinal myopic defocus, which design compromises good near and far vision while altering retinal defocus at both distance and near vision. Progressive lens designs incorporate a gradual change in curvature to provide a central zone of distance correction, the curvature changing gradually, and the ADD being added to the peripheral zone of the mirror. The design is intended to induce peripheral retinal myopic defocus at distance and near viewing while providing clear central vision. Although the out-of-focus frame glasses and out-of-focus contact lenses have a certain control function for correcting myopia, the wearer is likely to feel dizzy if the position of the out-of-focus amount and the size of the out-of-focus amount are not appropriate.
For example, CN213482596U, an annular defocus area formed by defocusing amount of index distribution can improve the effect of preventing and controlling myopia of teenagers and can also increase the wearing comfort.
Recent research shows that the retina of the eye fundus is in asymmetric distribution, and defocusing above the nose is obviously related to the control of the axis of the eye, so that the personalized regional distribution of the defocusing is very important for improving the wearing comfort of the defocusing lens and improving the effectiveness of myopia prevention and control.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a myopia lens and frame glasses.
The utility model adopts the technical proposal that: a myopia lens is provided with a full optical correction area in the center and a plurality of out-of-focus optical areas outside;
the full-correction optical zone is formed by surrounding the edge lines of the full-correction optical zone with the same odd number of strips, one out-of-focus optical zone is formed by surrounding the edge lines of two out-of-focus optical zones, the edge line of one out-of-focus optical zone is superposed with the edge line of one full-correction optical zone which surrounds the full-correction optical zone, and the edge line of the other out-of-focus optical zone is in an arc line which protrudes outwards.
Preferably, the boundary line of the fully corrective optic zone is a straight line or an outwardly convex arc.
Preferably, the fully-corrected optical zone edge comprises three.
Preferably, the fully-corrected optical zone is in the shape of a loler triangle.
Preferably, the outer out-of-focus optical zone boundary is a semicircle.
Preferably, the defocusing optical area is a cambered bulge, and the maximum defocusing amount Y of the defocusing optical area is +3 to +5.5D.
Preferably, the center of the optical area out of focus is convex, the amount of out-of-focus is maximum, and the edge smoothly transitions to meet the other part of the mirror surface.
Preferably, the defocusing optical area is located in the defocusing annular area, the defocusing amount of the defocusing annular area is distributed in a gradual change manner, and the defocusing amount is in the radial direction
The value of Y is the defocusing amount, and R is the distance from the center of the lens to the vertex of the intersection of two adjacent edges of the full correction optical zone.
A frame glasses comprises a glasses frame and a near vision lens connected with the glasses frame.
Preferably, there is less defocus near the nasal side.
The utility model has the advantages and positive effects be: the distribution of the focus-off areas with specific shapes and the size of the defocus amount are customized, so that the myopia prevention and control effect of teenagers can be improved, and the method is suitable for clinical popularization and application; the arrangement of the focus-off area with the specific shape is beneficial to improving the comfort of a wearer and reducing the dizziness probability.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an embodiment of the present invention;
fig. 4 is a schematic cross-sectional view of an embodiment of the present invention;
fig. 5 is a schematic cross-sectional view of an embodiment of the present invention;
FIG. 6 is a graph of the effect of myopic defocus patterns on myopic axis control;
in the figure:
1. full optical correction area 2, out-of-focus optical area 21, out-of-focus optical area boundary
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
As shown in figure 1, the utility model relates to a myopia lens, which is further improved on the basis of the scheme of CN213482596U, improves the myopia prevention and control effect and can improve the wearing comfort level. The center of the myopia lens is provided with a full-correction optical area, the inscribed circle of the full-correction optical area has a diameter of 6-9mm, a plurality of out-of-focus optical areas are arranged outside the full-correction optical area, and the out-of-focus optical areas are mutually connected to enclose the full-correction optical area. The whole optical correction zone is formed by surrounding the whole optical correction zone boundary lines with the same odd strip shape, the whole optical correction zone boundary lines are straight lines or arc lines protruding outwards, and the odd strips are arranged. The fully-corrected optical zone may comprise 3 sides, and specifically may be a triangle defined by 3 straight lines, or a Reuleaux triangle (Reuleaux triangle) defined by 3 outwardly-convex arcs.
The defocusing optical zone is formed by two defocusing optical zone side lines in a surrounding mode, one defocusing optical zone side line is overlapped with one fully-corrected optical zone side line forming a fully-corrected optical zone, and the other defocusing optical zone side line is an arc line protruding outwards and can be in a semicircular shape or a crescent shape, as shown in figures 1-3, the number of the defocusing optical zones is the same as that of the fully-corrected optical zone side lines. When the edge of the full correction optical zone is a straight line, the edge of the full correction optical zone can be a chord of a circle where the edge of the outer out-of-focus optical zone is located, and the effect is best when the out-of-focus optical zone is semicircular. When the edge of the full-correction optical zone is an arc line, the edge of the outer out-of-focus optical zone can be a major arc, a minor arc or a semicircle, and the effect is best when the edge is a semicircle.
The defocusing optical area is a cambered surface type bulge, as shown in fig. 4-5, the maximum defocusing amount Y of the defocusing optical area is +3 to +5.5D, the center of the defocusing optical area is bulged, the defocusing amount is maximum, and the edge is smoothly transited and connected with other positions of the mirror surface; or the defocusing optical area is positioned in the defocusing annular area, the defocusing amount of the defocusing annular area is distributed in an index manner, and the half-height value is Y = n × e x X =0.4mm, n is a constant, and the range is [1,1.85 ]]Or defocus in the radial direction
The value of Y is the defocusing amount, and R is the distance from the center of the lens to the vertex of the intersection of two adjacent edges of the full correction optical zone.
As shown in fig. 6, the influence of the myopic defocus form on the myopic eye axis control is shown (the point 0 on the horizontal axis is the center of the cornea, the X axis represents that the cornea extends from the center to the periphery, the larger the X value is, the farther away from the center of the cornea is represented, the Y axis is the myopic defocus amount, the larger the Y value is, the larger the defocus amount is), through the analysis on the influence of the defocus position and distribution on the myopic control, the defocus position is close to the center, the defocus change is fast, and the myopic control is better; A. the B curve is designed for two different defocus distributions, the defocus change rate of the A curve is faster (steeper), and clinical tests prove that the defocus distribution described by the A curve has a better myopia control effect.
The utility model discloses still disclose a frame glasses, including picture frame and the near-sighted lens of being connected with the picture frame, can adopt above-mentioned near-sighted lens. The lens is provided with a central optical area and a defocusing optical area, the defocusing range is larger when the lens is close to the central optical area, and the defocusing becomes convergent distribution when the lens is far away from the central optical area; when the lens of braced frame glasses, the angle in out of focus optics district in the control lens for it is few to be close to the out of focus distribution of nose side, and such setting does benefit to and ensures near-sighted prevention and control effect when improving and wearing glasses vision quality.
Example 1:
a myopia lens is provided with a full correction optical area in the center, three out-of-focus optical areas are arranged outside the full correction optical area, and the three out-of-focus optical areas surround the full correction optical area; the fully-corrected optical zone is formed by 3 minor arcs in a basil triangle shape, one out-of-focus optical zone is formed by two out-of-focus optical zone side lines in a surrounding mode, one out-of-focus optical zone side line is overlapped with one side of the basil triangle, and the other out-of-focus optical zone side line is in a semicircular shape protruding outwards, as shown in fig. 1.
The defocusing optical area is located in the defocusing annular area, the defocusing amount of the defocusing annular area is exponentially distributed, and as shown in fig. 5, the half-height value is Y = n × e x X =0.4mm, n is a constant, ranging from [1,1.85%]。
Example 2:
a myopia lens is provided with a full correction optical area in the center, three out-of-focus optical areas are arranged outside the full correction optical area, and the three out-of-focus optical areas surround the full correction optical area; the total optical zone is defined by 3 straight lines and is triangular, one out-of-focus optical zone is defined by two out-of-focus optical zone side lines, one out-of-focus optical zone side line is one side of the triangle, and the other out-of-focus optical zone side line is a semicircle protruding outwards, as shown in fig. 2. The defocusing optical area is a cambered surface bulge, as shown in fig. 4, the defocusing amount of the central bulge is the largest, and the edge smooth transition is connected with the other parts of the mirror surface. Defocus along radial direction
The value of Y is the defocus and R is the distance from the center of the lens to the vertex of the triangle.
Example 3:
a myopia lens is provided with a fully corrected optical area in the center, three out-of-focus optical areas are arranged outside the fully corrected optical area, and the three out-of-focus optical areas surround the fully corrected optical area; the fully-corrected optical zone is formed by 3 minor arcs in a loler triangle shape, one out-of-focus optical zone is formed by two out-of-focus optical zone side lines in a surrounding mode, one out-of-focus optical zone side line is overlapped with one side of the loler triangle, and the other out-of-focus optical zone side line is a minor arc protruding outwards, as shown in fig. 3. The out-of-focus optical area is a cambered surface bulge, as shown in FIG. 4, the central bulge has the largest out-of-focus amount and the sideThe edge smooth transition meets the other part of the mirror surface. Defocus along radial direction
The value of Y is the defocus and R is the distance from the center of the lens to the apex of the Miller triangle.
The embodiments of the present invention have been described in detail, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. The equivalent changes and improvements made according to the application scope of the present invention should be still included in the patent coverage of the present invention.
Claims (10)
1. A myopic lens, characterized by: the center is provided with a full optical correction area, and a plurality of defocusing optical areas are arranged outside the full optical correction area; the full-correcting optical zone is formed by surrounding the same full-correcting optical zone sidelines of odd-number strip shapes, one out-of-focus optical zone is formed by surrounding two out-of-focus optical zone sidelines, one out-of-focus optical zone sideline is superposed with one full-correcting optical zone sideline which surrounds the full-correcting optical zone, and the other out-of-focus optical zone sideline is an arc line which protrudes outwards.
2. A myopic lens as defined in claim 1, wherein: the edge line of the full-correction optical zone is a straight line or an arc line which protrudes outwards.
3. A myopic lens as defined in claim 1, wherein: the fully-corrected optical zone edge line comprises three.
4. A myopic lens as defined in claim 3, in which: the fully-corrected optical zone is in the shape of a loler triangle.
5. A myopic lens according to claim 4, in which: the outer out-of-focus optical zone borderline is a semicircle.
6. A myopic lens according to any one of claims 1 to 5, in which: the defocusing optical area is a cambered bulge, and the maximum defocusing amount Y of the defocusing optical area is +3 to +5.5D.
7. A myopic lens according to claim 6, wherein: the center of the defocusing optical area is convex, the defocusing amount is maximum, and the edge is smoothly transited and connected with the other parts of the mirror surface.
8. A myopic lens according to claim 6, wherein: the defocusing optical area is positioned in the defocusing annular area, and the defocusing amount of the defocusing annular area is distributed in a gradual change manner;
the defocusing amount of the defocusing annular area is exponentially distributed, and the half-height value is Y = n × e x X =0.4mm, n is a constant, and the range is [1,1.85 ]]；
Or defocus along the radial direction
The value of Y is the defocusing amount, and R is the distance from the center of the lens to the vertex of the intersection of two adjacent edges of the full correction optical zone.
9. A framed eyewear, characterized by: the myopia lens comprises a frame and a myopia lens connected with the frame, wherein the myopia lens is the myopia lens according to any one of claims 1-8.
10. The frame eyeglasses according to claim 9, wherein: the defocus distribution near the nose is less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222744312.6U CN218413111U (en) | 2022-10-14 | 2022-10-14 | Myopia lens and frame glasses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222744312.6U CN218413111U (en) | 2022-10-14 | 2022-10-14 | Myopia lens and frame glasses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218413111U true CN218413111U (en) | 2023-01-31 |
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ID=85003686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222744312.6U Active CN218413111U (en) | 2022-10-14 | 2022-10-14 | Myopia lens and frame glasses |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218413111U (en) |
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2022
- 2022-10-14 CN CN202222744312.6U patent/CN218413111U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231024 Address after: 518110 902, Building C, Xinghe WORLD Phase II, Minle Community, Minzhi Street, Longhua District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Tongxue Technology Co.,Ltd. Address before: 300384 No.1 Rongyuan Road, Huayuan Industrial Zone, Binhai hi tech Industrial Development Zone, Binhai New Area, Tianjin Patentee before: TIANJIN MEDICAL UNIVERSITY EYE Hospital |
|
| TR01 | Transfer of patent right | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shenzhen Eye Science and Technology Co.,Ltd. Assignor: Shenzhen Tongxue Technology Co.,Ltd. Contract record no.: X2024980005984 Denomination of utility model: A type of myopia lens and frame glasses Granted publication date: 20230131 License type: Common License Record date: 20240521 |