CN211236484U - Corneal plastic mirror for slowing down myopia - Google Patents
Corneal plastic mirror for slowing down myopia Download PDFInfo
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- CN211236484U CN211236484U CN201921693107.3U CN201921693107U CN211236484U CN 211236484 U CN211236484 U CN 211236484U CN 201921693107 U CN201921693107 U CN 201921693107U CN 211236484 U CN211236484 U CN 211236484U
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Abstract
The utility model relates to a plastic mirror of cornea for slowing down myopia, including the lens, the lens includes base arc district, reversal arc district, location arc district and peripheral arc district, the inboard shape in base arc district is bellied spherical shape, the central axis department in base arc district is equipped with the bleeder vent, the one end of bleeder vent communicates with the outside in base arc district, the other end of bleeder vent is equipped with two vent pipes at least, this plastic mirror of cornea for slowing down myopia increases the cavity that the reflection arc district formed through the bellied spherical shape in base arc district, is convenient for save more tears, increases the pressure to the cornea, and through the buffering of bleeder vent and breather pipe, avoids exerting too big pressure to the cornea and arousing user's discomfort, has still avoided the various bad symptoms that cause behind the corneal oxygen deficiency simultaneously, has improved the comfort level that the user wore and orthopedic with higher speed, thereby improving the practicability of the equipment.
Description
Technical Field
The utility model relates to the field of medical equipment, in particular to a moulding mirror of cornea for slowing down myopia.
Background
The cornea shaping mirror is a special RGP lens used for reshaping, namely vision is improved by changing the shape of a cornea assembly, the RGP lens of the cornea shaping mirror has simpler outer surface and relatively complex inner surface, the inner surface of the shaping mirror is not parallel to or inosculated with the cornea any more, but gaps are made between the lens and the cornea, and the function of tears is utilized to achieve the reshaping effect. The cornea shaping mirror is safe and reliable in correction and myopia relief process and obvious in effect, and after a mild or moderate myopia patient uses the cornea shaping mirror, the diopter is obviously reduced, and the vision can be surprisingly improved in a very short time.
In the prior art, when the corneal plastic mirror is designed, a base arc area generally adopts a curved surface which is more flat than the curvature of a central cornea, and an inverted arc is steeper than the curvature of the base arc area, so that a certain cavity structure is formed in the inverted arc area and is used for storing tears and receiving the thickening of a corneal epithelial cell layer, but the inner surface of the base arc area in the prior corneal plastic mirror adopts a spherical surface structure which is still protruded outwards, so that after a user wears the corneal plastic mirror, the cavity formed in the inverted arc area is smaller, the space of the stored tears is also reduced, the corneal plastic mirror can finish the adjustment of vision only by spending longer time, and moreover, after the prior corneal plastic mirror is worn, the cornea is isolated from the outside, so that the cornea is lack of oxygen, and bad symptoms such as oxygen, redness, dryness, pain, lacrimation and the like of the eye are caused, and the central part of the base arc area has overlarge pressure on the cornea, and the conditions such as discomfort of the eye, thereby reducing the practicability of the existing orthokeratology mirror.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: in order to overcome the defects of the prior art, the cornea shaping mirror for reducing myopia is provided.
The utility model provides a technical scheme that its technical problem adopted is: a corneal shaping mirror for relieving myopia comprises a lens, wherein the outer side of the lens is arc-shaped, the lens comprises a base arc area, a reverse arc area, a positioning arc area and a peripheral arc area, the base arc area is positioned at the center of the lens, the horizontal cross sections of the reverse arc area, the positioning arc area and the peripheral arc area are all arc-shaped, the periphery of the base arc area is fixedly connected with the inner wall of the reverse arc area, the periphery of the reverse arc area is fixedly connected with the periphery of the positioning arc area, the periphery of the positioning arc area is fixedly connected with the periphery of the peripheral arc area, the curvature of the inner side of the base arc area is smaller than that of the inner side of the reverse arc area, and the inner side of the base arc area is in a convex spherical shape;
the central axis of the base arc area is provided with air holes, one ends of the air holes are communicated with the outer side of the base arc area, the other ends of the air holes are at least provided with two air ducts, the air ducts are circumferentially and uniformly distributed on the periphery of the air holes, one ends of the air ducts are communicated with the air holes, and the other ends of the air ducts are communicated with the reverse arc area.
Preferably, in order to prevent the cornea from oxygen deficiency, an oxygen permeable membrane is arranged in one end of the air hole, which is located outside the basal arc zone, and the oxygen permeable membrane is made of a Boston XO material.
Preferably, the outer surface of the oxygen permeable membrane has the same curvature as the outer side of the lens in order to ensure smooth surface of the orthokeratology lens as a whole.
Preferably, for convenience of wearing, the inner sides of the positioning arc area and the peripheral arc area are both provided with modulation waveforms.
Preferably, the diameter of the base arc area is 6.5-7.0mm to avoid glare at night after the user wears the glasses.
The beneficial effects of the utility model are that, this a moulding mirror of cornea for slowing down myopia passes through the bellied spherical shape of basic arc district inboard, the cavity that the reflection arc district formed has been increased, be convenient for save more tears, increase the pressure to the cornea, and through the buffering of bleeder vent and breather pipe, avoid exerting pressure to the cornea and arouse user's discomfort excessively, various bad symptoms that cause after still having avoided the cornea oxygen deficiency simultaneously, the comfort level of wearing of user is improved and orthopedic with higher speed, and then the practicality of equipment has been improved.
Drawings
The present invention will be further explained with reference to the drawings and examples.
FIG. 1 is a schematic structural diagram of a orthokeratology lens for reducing myopia according to the present invention;
FIG. 2 is a top view of a orthokeratology lens for reducing myopia according to the present invention;
in the figure: 1. a base arc area, 2 reverse arc areas, 3 positioning arc areas, 4 peripheral arc areas, 5 air holes, 6 air ducts and 7 oxygen permeable membranes.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
As shown in fig. 1-2, a corneal shaping mirror for reducing myopia includes a lens, the outer side of the lens is arc-shaped, the lens includes a base arc region 1, a reverse arc region 2, a positioning arc region 3 and a peripheral arc region 4, the base arc region 1 is located at the center of the lens, the horizontal cross sections of the reverse arc region 2, the positioning arc region 3 and the peripheral arc region 4 are all arc-shaped, the periphery of the base arc region 1 is fixedly connected with the inner wall of the reverse arc region 2, the periphery of the reverse arc region 2 is fixedly connected with the periphery of the positioning arc region 3, the periphery of the positioning arc region 3 is fixedly connected with the periphery of the peripheral arc region 4, the curvature of the inner side of the base arc region 1 is smaller than the curvature of the inner side of the reverse arc region 2, and the shape of the inner side of the base arc region 1 is convex spherical;
the central axis department of base arc district 1 is equipped with bleeder vent 5, the one end of bleeder vent 5 and the outside intercommunication of base arc district 1, the other end of bleeder vent 5 is equipped with two air duct 6 at least, 6 circumference evenly distributed of air duct are in the periphery of bleeder vent 5, the one end and the bleeder vent 5 intercommunication of air duct 6, the other end and the reversal arc district 2 intercommunication of air duct 6.
The cornea shaping mirror is mainly made of a lens consisting of a base arc area 1, a reverse arc area 2, a positioning arc area 3 and a peripheral arc area 4, after the cornea shaping mirror is worn, the base arc area 1 exerts the force of pressing down on the center of a cornea under the action of an eyelid, the curvature of the inner side of the base arc area 1 is smaller than that of the inner side of the reverse arc area 2, so that the base arc area 1 and the reverse arc area 2 form a certain cavity, tears are conveniently stored in the cavity and thickened on an epithelial cell layer of the cornea, an outward pulling force is generated on corneal tissues through the hydrodynamic effect of the tears, the eyeball of a user is shaped, the centering and the stability of the base arc area 1 at the central part of the lens can be ensured by utilizing the positioning arc area 3, the smooth exchange of the tears is facilitated by listening to the peripheral arc area 4, the vision of the user is adjusted in such a way, the myopia symptoms of the user are linked, and on the inner side of the base arc area 1, the shape of the lens is a convex spherical surface, the cavity structure formed by the reversal arc area 2 can be increased, more tears can be conveniently stored in the cavity structure increased by the individual shape, the acting force on the cornea position of a user is strengthened, the adjustment effect on eyesight is improved, the air hole 5 is arranged at the central part of the base arc area 1, the air duct 6 is communicated with the air hole 5, the cavity position is communicated with the outside, external oxygen can conveniently enter the cavity through the air hole 5 and the air duct 6 and is in contact with the cornea, various uncomfortable symptoms after the user wears the lens due to the lack of oxygen on the cornea are avoided, the lens has soft elasticity, the air hole 5 and the air duct 6 can be subjected to radiation deformation and perform certain buffering, the discomfort of the user due to the overlarge pressure effect on the central part of the cornea caused by the base arc area 1 is avoided, and the practicability of the device is improved.
Preferably, in order to prevent the cornea from oxygen deficiency, an oxygen permeable membrane 7 is arranged in one end of the vent hole 5 and the outer side of the base arc region 1, and the oxygen permeable membrane 7 is made of a Boston XO material. An oxygen permeable membrane 7 made of Boston XO material is arranged on the inner side of the air vent 5, so that oxygen molecules can conveniently enter the air vent 5 and contact with a cornea through an air permeable pipeline, tears are prevented from flowing out of the air vent 5, and comfort of wearing of a user is guaranteed.
Preferably, the outer surface of the oxygen permeable membrane 7 has the same curvature as the outer surface of the lens in order to ensure the smoothness of the whole surface of the orthokeratology lens. The curvature of the outer surface of the oxygen permeable membrane 7 is set to be the same as the curvature of the outer side of the lens, so that the whole outer surface of the orthokeratology lens is smooth, and the orthokeratology lens can be cleaned conveniently.
Preferably, for wearing convenience, the inner sides of the positioning arc area 3 and the peripheral arc area 4 are both provided with modulation waveforms. The modulated waveforms are arranged on the surfaces of the positioning arc area 3 and the peripheral arc area 4, so that the positioning capacity of the orthokeratology mirror is further improved, and the orthokeratology mirror is convenient to wear by a user.
Preferably, the diameter of the base arc region 1 is 6.5-7.0mm to avoid glare at night after wearing. At night or other dim places, the pupil of a person is usually between 5.5 mm and 7.0mm, and the base arc area 1 can cover the pupil of the person by ensuring the range of the base arc area 1, so that the phenomenon of flare after wearing the keratoplasty mirror at night or other dim places is avoided.
This moulding mirror of cornea is through designing into bellied spherical shape with the inboard of base arc district 1, the cavity that the reflection arc district formed has been increased, be convenient for save more tears, strengthen the pressure to cornea center part, set up bleeder vent 5 and vent pipe 6 simultaneously, prevent on the one hand that the cornea oxygen deficiency from causing the user to wear back eyes and appear various discomfort, on the other hand conveniently passes through the deformation of bleeder vent 5 and vent pipe 6 in the base arc district 1, realize cushioning effect, avoid too big to user's cornea pressure, the comfort level that the user wore has been improved, the practicality of equipment has been improved.
Compared with the prior art, this a moulding mirror of cornea for slowing down myopia passes through the bellied spherical shape of base arc 1 inboard, has increased the cavity that the reflection arc formed, be convenient for save more tears, increase the pressure to the cornea, and through the buffering of bleeder vent 5 and breather pipe, avoid exerting pressure to the cornea and arouse user's discomfort too greatly, various bad symptoms that cause after still having avoided the cornea oxygen deficiency simultaneously, the comfort level of having improved the user and worn and orthopedic with higher speed, and then the practicality of equipment has been improved.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (5)
1. A corneal shaping lens for relieving myopia comprises a lens, the shape of the outer side of the lens is an arc surface, the lens comprises a base arc area (1), a reverse arc area (2), a positioning arc area (3) and a peripheral arc area (4), the base arc area (1) is positioned at the center of the lens, the horizontal sections of the reversal arc area (2), the positioning arc area (3) and the peripheral arc area (4) are all arc-shaped, the periphery of the base arc area (1) is fixedly connected with the inner wall of the reverse arc area (2), the periphery of the reverse arc area (2) is fixedly connected with the periphery of the positioning arc area (3), the periphery of the positioning arc area (3) is fixedly connected with the periphery of the peripheral arc area (4), the curvature of the inner side of the base arc area (1) is smaller than that of the inner side of the reverse arc area (2), the arc-shaped substrate is characterized in that the inner side of the base arc region (1) is in a convex spherical shape;
the central axis department of base arc district (1) is equipped with bleeder vent (5), the one end of bleeder vent (5) and the outside intercommunication of base arc district (1), the other end of bleeder vent (5) is equipped with two air duct (6) at least, air duct (6) circumference evenly distributed is in the periphery of bleeder vent (5), the one end and bleeder vent (5) intercommunication of air duct (6), the other end and reversal arc district (2) intercommunication of air duct (6).
2. The orthokeratology mirror for slowing down myopia as claimed in claim 1, characterized in that an oxygen permeable membrane (7) is arranged in one end of the air hole (5) and the outer side of the basal arc zone (1), and the oxygen permeable membrane (7) is made of Boston XO material.
3. Orthokeratology lens for reducing myopia according to claim 2, characterised in that the curvature of the outer surface of the oxygen permeable membrane (7) is the same as the curvature of the outer side of the lens.
4. Orthokeratology lens for the reduction of myopia according to claim 1, characterised in that the inner sides of the positioning arc (3) and the peripheral arc (4) are provided with modulating waveforms.
5. Orthokeratology lens for reducing myopia according to claim 1, characterized in that the base arc zone (1) has a diameter of 6.5-7.0 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921693107.3U CN211236484U (en) | 2019-10-10 | 2019-10-10 | Corneal plastic mirror for slowing down myopia |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921693107.3U CN211236484U (en) | 2019-10-10 | 2019-10-10 | Corneal plastic mirror for slowing down myopia |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211236484U true CN211236484U (en) | 2020-08-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921693107.3U Expired - Fee Related CN211236484U (en) | 2019-10-10 | 2019-10-10 | Corneal plastic mirror for slowing down myopia |
Country Status (1)
| Country | Link |
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| CN (1) | CN211236484U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112450877A (en) * | 2020-10-27 | 2021-03-09 | 华中科技大学同济医学院附属同济医院 | Intelligent contact lens with full-cornea fiber grating sensors arranged in series |
-
2019
- 2019-10-10 CN CN201921693107.3U patent/CN211236484U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112450877A (en) * | 2020-10-27 | 2021-03-09 | 华中科技大学同济医学院附属同济医院 | Intelligent contact lens with full-cornea fiber grating sensors arranged in series |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200811 Termination date: 20211010 |
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| CF01 | Termination of patent right due to non-payment of annual fee |