CN220872805U - Myopia prevention and control contact lens combining soft lens and hard lens - Google Patents
Myopia prevention and control contact lens combining soft lens and hard lens Download PDFInfo
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- CN220872805U CN220872805U CN202322636054.4U CN202322636054U CN220872805U CN 220872805 U CN220872805 U CN 220872805U CN 202322636054 U CN202322636054 U CN 202322636054U CN 220872805 U CN220872805 U CN 220872805U
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- 230000004379 myopia Effects 0.000 title claims abstract description 41
- 208000001491 myopia Diseases 0.000 title claims abstract description 41
- 230000002265 prevention Effects 0.000 title claims abstract description 40
- 230000003287 optical effect Effects 0.000 claims abstract description 94
- 238000003384 imaging method Methods 0.000 claims description 4
- 230000007423 decrease Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 16
- 239000000853 adhesive Substances 0.000 abstract description 7
- 230000001070 adhesive effect Effects 0.000 abstract description 7
- 230000002093 peripheral effect Effects 0.000 abstract description 3
- 230000003247 decreasing effect Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000004515 progressive myopia Effects 0.000 description 2
- 210000001525 retina Anatomy 0.000 description 2
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000004438 eyesight Effects 0.000 description 1
- 208000014733 refractive error Diseases 0.000 description 1
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Abstract
The utility model discloses a myopia prevention and control contact lens combining a soft lens and a hard lens, which comprises a lens main body, wherein a hard optical zone and a soft lens layer are arranged on the lens main body, the hard optical zone is positioned in the middle of the lens main body, a defocusing zone is arranged on the hard optical zone, and the soft lens layer is positioned on the peripheral side of the hard optical zone and is connected with the hard optical zone through an adhesive zone. Compared with the prior art, the technical scheme of the utility model fully exerts the advantages of the soft lens and the hard lens in a soft and hard combined mode, namely, the lens can realize prevention and control of myopia by setting a defocusing area, and can achieve comfortable wearing effect by setting lenses with different hardness in different areas.
Description
Technical Field
The utility model relates to the technical field of contact lenses, in particular to a myopia prevention and control contact lens combining a soft lens with a hard lens.
Background
With the increase of labor intensity, the increase of the use frequency of electronic products and bad eye habits, more people need to wear glasses to correct vision.
In recent years, an adjustment theory and a defocus theory provide a new prevention and control idea for refractive errors, and a defocus lens becomes a mainstream corrective lens, and currently, a technology of providing a defocus region in an important optical zone of a contact lens, wherein the defocus region generally generates different refractive powers by changing the thickness of different regions on a central optical zone of the contact lens, that is, changing the defocus amount of the defocus region on the central optical zone can achieve the effect of preventing and controlling myopia has been developed.
When the central optical area of the hard lens is provided with a defocus area, the hardness of the hard lens is hard and is not easy to deform, namely, the thickness of the defocus area of the central optical area is not easy to change, namely, the defocus amount of the defocus area is stable, the defocus area on the hard lens can realize stable refractive power to realize myopia prevention and control, but the hardness of the hard lens is hard and uncomfortable to wear, otherwise, when the central optical area of the soft lens is provided with the defocus area, the soft lens is soft, the defocus area is easy to dent or bulge, so that the thickness of the defocus area is influenced, namely, the defocus amount of the defocus area is unstable, and the myopia prevention and control effect is poor.
The prior art is therefore in need of improvement and advancement.
Disclosure of utility model
In view of the above-mentioned shortcomings of the prior art, an object of the present utility model is to provide a soft and hard lens combined myopia prevention and control contact lens, which not only can realize myopia prevention and control by setting a defocus region, but also can achieve comfortable wearing effect by setting lenses with different hardness in different regions.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
A myopia prevention and control contact lens with a soft lens and a hard lens combined comprises a lens main body, wherein a hard optical area and a soft lens layer are arranged on the lens main body, the hard optical area is positioned in the middle of the lens main body, a defocusing area is arranged on the hard optical area, and the soft lens layer is positioned on the outer side of the hard optical area and is connected with the hard optical area through an adhesive area.
Further, the hardness of the hard optical zone, the adhesion zone and the soft lens layer decreases in sequence.
Further, the defocus region includes a defocus circle disposed in a middle portion of the rigid optical region.
Further, the diameter of the hard optical zone is 6mm, wherein the diameter of the central imaging optical zone located in the middle of the hard optical zone is 5mm.
Further, the diameter of the out-of-focus circle is 0.5mm.
Further, the defocusing area comprises a plurality of defocusing optical areas, and the defocusing optical areas are uniformly distributed around the center of the hard optical area.
Further, the out-of-focus optical area is circular, elliptical, rectangular, fan-shaped ring or diamond-shaped, and a plurality of out-of-focus optical areas are the same shape or different shapes.
Further, a plurality of the defocus optical regions are provided on one annular region or a plurality of annular regions, and the defocus amounts of the defocus optical regions on each annular region are the same or different.
Further, there is a variation in defocus amount in the angular direction in a plurality of the defocus optical zones.
Further, a plurality of the defocus optical regions have defocus amount variations in radial direction.
Compared with the prior art, the myopia prevention and control contact lens with the combination of the soft lens and the hard lens comprises a lens main body, wherein a hard optical area and a soft lens layer are arranged on the lens main body, the hard optical area is positioned in the middle of the lens main body, a defocusing area is arranged on the hard optical area, and the soft lens layer is positioned on the outer peripheral side of the hard optical area and is connected with the hard optical area through an adhesive area. Aiming at the utility model, the lens not only can realize the prevention and control of myopia by setting the defocusing area, but also can achieve the effect of comfortable wearing by setting the lenses with different hardness in different areas.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings may be obtained from the structures shown in these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic view of a soft and hard lens combined myopia prevention and control contact lens according to the present utility model.
Fig. 2 is a schematic plan view of a soft and hard lens combined myopia prevention and control contact lens according to one embodiment.
Fig. 3 is a schematic plan view of a soft and hard lens combined myopia prevention and control contact lens of another embodiment.
The attached drawings are used for identifying and describing: lens body-1, hard optical zone-2, soft lens layer-3, defocus zone-4, adhesion zone-5, defocus circle-6, defocus optical zone-7.
Detailed Description
In order that the application may be readily understood, a more complete description of the application will be rendered by reference to the appended drawings. Embodiments of the application are illustrated in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
In the present utility model, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are only used to better describe the present utility model and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations. Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the present utility model will be understood by those of ordinary skill in the art according to the specific circumstances.
In addition, the terms "first" and "second" and the like as used herein may be used to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another element. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," and/or the like, specify the presence of stated features, integers, steps, operations, elements, components, or groups thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or groups thereof.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.
In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.
As shown in fig. 1, the myopia prevention and control contact lens with combined soft and hard lenses provided by the utility model comprises a lens main body 1, wherein a hard optical zone 2 and a soft lens layer 3 are arranged on the lens main body 1, the hard optical zone 2 is positioned in the middle of the lens main body 1, a defocusing zone 4 is arranged on the hard optical zone 2, the soft lens layer 3 is positioned on the peripheral side of the hard optical zone 2, namely, the soft lens layer 3 is circumferentially arranged on the outer side of the hard optical zone 2 and is connected with the hard optical zone 2 through an adhesive zone 5.
It can be understood that the defocus region 4 can perform myopia prevention and control on eyes, the adhesive region 5 is used for connecting the hard optical region 2 and the soft lens main body 1, the hardness of the hard optical region 2 is large, deformation is not easy to occur, that is, the defocus amount of the defocus region 4 on the hard optical region 2 can be kept unchanged, that is, a better myopia prevention and control effect can be achieved, and the soft lens layer 3 can improve comfort of wearing with eyes, and foreign body feeling on eyes due to harder lens texture is reduced when wearing.
Compared with the prior art, the technical scheme of the utility model fully exerts the advantages of the soft lens and the hard lens in a soft and hard combined mode, namely, the lens can realize prevention and control of myopia by arranging the defocused area 4, and can achieve the effect of wearing comfort by arranging lenses with different hardness in different areas.
In one embodiment, as shown in fig. 2, the hardness of the hard optical zone 2, the adhesive zone 5, and the soft lens layer 3 decreases sequentially. That is, the outer circumferences of the hard optical zones 2 are soft lenses, and the comfort is good when the hard optical zones are attached to the eyewear.
As an alternative embodiment, the defocus region 4 includes a defocus circle 6 disposed in the middle of the rigid optical region 2, where the defocus circle 6 can effectively reduce myopia progression and achieve better myopia prevention and control effects.
Specifically, the hard optical zone 2 has a diameter of 6mm, a thickness of 1.5mm, and a diameter of the defocus circle 6 of 0.5mm, wherein the diameter of the central imaging optical zone located in the middle of the hard optical zone 2 is 5mm.
As another alternative embodiment, as shown in fig. 3, the defocus region 4 includes a plurality of defocus optical regions 7, where the defocus optical regions 7 are uniformly distributed around the axis of the hard optical region 2, that is, it is ensured that the defocus optical regions 7 are uniformly distributed in each region of the hard optical region 2 as much as possible, so that not only a better myopia prevention and control effect can be achieved, but also the contact touch feeling of each region of the eye in contact with the hard optical region 2 remains the same, that is, the wearing comfort of the glasses is ensured.
Further, the defocus optical zone 7 is circular, elliptical, rectangular, fan-shaped or diamond-shaped, preferably diamond-shaped, the defocus optical zones 7 are the same shape or different shapes, the defocus optical zones 7 are arranged on one annular zone or on a plurality of annular zones, and the defocus amount of the defocus optical zone on each annular zone is the same or different, specifically, the defocus amount of the defocus optical zone on each annular zone can be gradually increased or decreased, that is, the sum of the defocus amounts of the defocus optical zones 7 on the hard optical zone can be increased by arranging the number of annular zones, so that the larger defocus amount is achieved, and the more myopia prevention and control effect is realized.
Alternatively, the number of out-of-focus optical zones 7 per ring is 2-8. In particular, the number of out-of-focus optical zones 7 per ring is 2, 4, 6 or 8.
Alternatively, the phase difference between the defocus amounts of adjacent two rings may be 0 ° -180 °. Specifically, the phase difference between the defocus amounts of the adjacent two rings is 0 °, 90 °, or 180 °.
Optionally, the defocus angle distribution Y is 15 ° to 90 °.
Further, the defocus amount of the plurality of defocus optical zones 7 varies in the angular direction, and the defocus amount is related to the thickness and the surface area of the defocus optical zones 7, i.e., the defocus optical zones 7 vary in thickness and surface area at different angular positions, so that a better myopia prevention and control effect can be achieved.
Further, the plurality of defocus optical zones 7 have a defocus amount variation in the radial direction. Namely, the thickness and the surface area of the defocused optical zone 7 in different radius ranges are changed, and the better myopia prevention and control effect can be realized.
It should be noted that, the defocus amount variation of the plurality of defocus optical zones 7 in both the angular direction and the radial direction can play a dual role in preventing and controlling myopia, that is, imaging an image on the retina as much as possible.
In summary, according to the myopia prevention and control contact lens with the combination of the soft lens and the hard lens, the hardness of the hard optical area, the hardness of the adhesive area and the hardness of the soft lens layer are sequentially decreased, that is, the outer periphery of the hard optical area is a soft lens, when the soft lens is attached to the eye wear, the comfort is good, the defocus circle can effectively reduce myopia progression, a better myopia prevention and control effect can be achieved, the defocus optical area is arranged on one annular area or a plurality of annular areas, that is, the sum of defocus amounts of the defocus optical areas on the hard optical area can be increased by arranging the number of annular areas, so that a larger defocus amount is achieved, a more myopia prevention and control effect is achieved, and the defocus amounts of the defocus optical areas are changed in the angular direction and the radial direction at the same time, that is, a double myopia prevention and control effect can be achieved, that is, an image is imaged on the retina as much as possible. Compared with the prior art, the technical scheme of the utility model fully exerts the advantages of the soft lens and the hard lens in a soft and hard combined mode, namely, the lens can realize prevention and control of myopia by setting a defocusing area, and can achieve comfortable wearing effect by setting lenses with different hardness in different areas.
The embodiments of the present utility model have been described above with reference to the accompanying drawings, but the present utility model is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present utility model and the scope of the claims, which are all within the scope of the present utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
Claims (10)
1. The utility model provides a myopia prevention and control contact lens that soft and hard lens combines, its characterized in that, includes lens main part (1), be provided with hard optics district (2) and soft lens layer (3) on lens main part (1), hard optics district (2) are located the middle part of lens main part (1), just be provided with defocus district (4) on hard optics district (2), soft lens layer (3) are located the periphery side of hard optics district (2), and through bonding district (5) with hard optics district (2) are connected.
2. A soft and hard lens combined myopia prevention and control contact lens according to claim 1, wherein the hardness of the hard optical zone (2), the adhesion zone (5) and the soft lens layer (3) decreases in sequence.
3. A soft and hard lens combined myopia prevention and control contact lens according to claim 1, characterized in that the defocus zone (4) comprises a defocus circle (6) arranged in the middle of the hard optical zone (2).
4. A soft and hard lens combined myopia prevention and control contact lens according to claim 3, wherein the diameter of the hard optical zone (2) is 6mm, wherein the diameter of the central imaging optical zone in the middle of the hard optical zone (2) is 5mm.
5. A soft and hard lens combined myopia prevention and control contact lens according to claim 3, wherein the diameter of the defocus circle (6) is 0.5mm.
6. A soft and hard lens combined myopia prevention and control contact lens according to claim 1, wherein the defocus region (4) comprises a plurality of defocus optical regions (7), the plurality of defocus optical regions (7) being evenly distributed around the centre of the hard optical region (2).
7. A soft and hard lens combined myopia prevention and control contact lens according to claim 6, wherein the out-of-focus optical zone (7) is circular, oval, rectangular, fanned-ring or diamond-shaped, and a plurality of the out-of-focus optical zones (7) are the same shape or different shapes.
8. A soft and hard lens combined myopia prevention and control contact lens according to claim 7, wherein a plurality of said defocus optical zones (7) are provided on one or more annular zones, and the defocus amounts of said defocus optical zones (7) on each annular zone are the same or different.
9. A soft and hard lens combined myopia prevention and control contact lens according to claim 8, wherein there is a change in the amount of defocus in the angular direction of a plurality of the defocus optical zones (7).
10. A soft and hard lens combined myopia prevention and control contact lens according to claim 8, wherein there is a variation in the amount of defocus in the radial direction of a plurality of the defocus optical zones (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322636054.4U CN220872805U (en) | 2023-09-27 | 2023-09-27 | Myopia prevention and control contact lens combining soft lens and hard lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322636054.4U CN220872805U (en) | 2023-09-27 | 2023-09-27 | Myopia prevention and control contact lens combining soft lens and hard lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220872805U true CN220872805U (en) | 2024-04-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322636054.4U Active CN220872805U (en) | 2023-09-27 | 2023-09-27 | Myopia prevention and control contact lens combining soft lens and hard lens |
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| Country | Link |
|---|---|
| CN (1) | CN220872805U (en) |
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2023
- 2023-09-27 CN CN202322636054.4U patent/CN220872805U/en active Active
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