CN203930241U - A kind of Ortho-K - Google Patents
A kind of Ortho-K Download PDFInfo
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- CN203930241U CN203930241U CN201420309402.5U CN201420309402U CN203930241U CN 203930241 U CN203930241 U CN 203930241U CN 201420309402 U CN201420309402 U CN 201420309402U CN 203930241 U CN203930241 U CN 203930241U
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- arc
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- cornea
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- 210000004087 cornea Anatomy 0.000 claims abstract description 31
- 210000002919 epithelial cell Anatomy 0.000 claims description 4
- 230000008719 thickening Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 15
- 230000008569 process Effects 0.000 abstract description 13
- 238000000465 moulding Methods 0.000 description 19
- 208000001491 myopia Diseases 0.000 description 9
- 230000004379 myopia Effects 0.000 description 9
- 230000008859 change Effects 0.000 description 7
- 238000013461 design Methods 0.000 description 5
- 230000004438 eyesight Effects 0.000 description 5
- 238000005457 optimization Methods 0.000 description 5
- 210000000695 crystalline len Anatomy 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 206010020675 Hypermetropia Diseases 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 201000006318 hyperopia Diseases 0.000 description 3
- 230000004305 hyperopia Effects 0.000 description 3
- 230000009711 regulatory function Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000002045 lasting effect Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 208000014733 refractive error Diseases 0.000 description 2
- 210000001525 retina Anatomy 0.000 description 2
- 230000035807 sensation Effects 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 238000012549 training Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 206010025421 Macule Diseases 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 210000001747 pupil Anatomy 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000002207 retinal effect Effects 0.000 description 1
- 230000001568 sexual effect Effects 0.000 description 1
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Abstract
The utility model relates to a kind of Ortho-K, belongs to optics articles for use technical field, comprises mirror body; The inside surface of mirror body is disposed with Ji Huqu, reversion arc district, arc district, location and circumference arc district from center to outside; Wherein Ji Huqu is ring curved surface, and Ji Huqu also arranges sensor, and sensor is for measuring the dynamic refraction load capacity of cornea; The inward flange in circumference arc district is provided with two symmetrical stable pterions, by be provided with two symmetrical stable pterions at the inward flange in circumference arc district, increase stability and the placed in the middle disposition of eyeglass at cornea, changed the scrambling due to people's cornea, causing arc district, location is the location not to the utmost desirable situation of eyeglass on cornea of ring curved surface; By being provided with dynamic refraction payload portion at described Ji Huqu, the user who makes Ortho-K is in the process with eye naturally, and plasticity that also can corneal is optimized.
Description
Technical field
The utility model relates to optics articles for use technical field, relates in particular to a kind of Ortho-K.
Background technology
Ortho-K is to adopt in addition a kind of contact lens of Special Inverse geometric shape design of gas penetration potential hard Contact Lens (being usually said RGP material), its inside surface is made up of multiple arcs district, is mainly divided into Ji Huqu, reversion arc district, arc district, location and circumference arc district.
But current Ortho-K is only considered the deformation quantity of required rectification, this is not a process of dynamically adjusting, can do nothing to help user naturally with process in make cornea plasticity effect improve and optimize.
In addition,, when the arc district, location of existing Ortho-K is generally ring curved surface, due to the scrambling of people's cornea, there is the desirable not to the utmost situation in the location of Ortho-K on cornea.
Therefore, for a person skilled in the art, help user naturally carrying out cornea plasticity with in process, and to make Ortho-K can conveniently be positioned cornea be the technical matters that those skilled in the art need solution badly.
Summary of the invention
The utility model aims to provide a kind of Ortho-K, based on the utility model, to facilitate the location of Ortho-K and to make the user can be naturally carrying out cornea plasticity with eye in process.
The utility model Ortho-K comprises: mirror body; The inside surface of described mirror body is disposed with Ji Huqu, reversion arc district, arc district, location and circumference arc district from center to outside; Wherein said Ji Huqu is for ring curved surface, for reinventing corneal epithelial cell layer; Described reversion arc district is for storing tear and receiving thickening of corneal epithelial cell floor; Arc district, described location and described circumference arc district are for the location of eyeglass; And described Ji Huqu also arranges sensor, described sensor is for measuring the dynamic refraction load capacity of cornea; Described circumference arc district comprises inward flange, and described inward flange is provided with two symmetrical stable pterions.
Further, described stable pterion comprises interior top, outer end and inner side cambered surface, and described inner side cambered surface is at the edge of described interior top and outer end.
Further, the distance of described interior top and outer end is 1-5mm.
Further, described inner side cambered surface is aspheric surface arc, and the radius-of-curvature of the starting point of described aspheric surface arc is 10-15mm, and the radius-of-curvature of the terminal of described aspheric surface arc is 11-14mm.
Further, described inner side cambered surface is spherical arc, and the radius-of-curvature of described spherical arc is 12-13mm.
Further, described inner side cambered surface is conical surface arc, and the base angle of described conical surface arc is 30 °-35 °.
With respect to prior art, the utlity model has following technique effect:
The first, by be provided with two symmetrical stable pterions at the inward flange in circumference arc district, increase stability and the placed in the middle disposition of eyeglass at cornea, changed the scrambling due to people's cornea, causing arc district, location is the location not to the utmost desirable situation of eyeglass on cornea of ring curved surface.
The second, by being provided with dynamic refraction payload portion at described Ji Huqu, the user who makes Ortho-K is in the process with eye naturally, and plasticity that also can corneal is optimized.
Brief description of the drawings
Fig. 1 is the utility model Ortho-K example structure schematic diagram.
Embodiment
When considered in conjunction with the accompanying drawings, by the detailed description with reference to below, can more completely understand better the utility model and easily learn wherein many advantages of following, but accompanying drawing described herein is used to provide further understanding of the present utility model, form a part of the present utility model, schematic description and description of the present utility model is used for explaining the utility model, do not form improper restriction of the present utility model, as schemed wherein:
Obviously the many modifications and variations that, those skilled in the art do based on aim of the present utility model belong to protection domain of the present utility model.
Embodiment: as shown in Figure 1, the present embodiment provides a kind of Ortho-K, and it comprises mirror body, the inside surface of mirror body is disposed with Ji Hu district 1, reversion arc district 2, arc district 3, location and circumference arc district 4 from center to outside, and Ji Hu district 1 is provided with sensor 6,
The moulding amount of Ortho-K is except having considered basic myoporthosis amount, we have also added for starting eyes entirety visual performance optimization training dynamic refraction load capacity especially personalizedly---this specific dynamic refraction load capacity generally can-800-+400 is interval to be changed, thereby make its visual performance of Ortho-K wearer naturally with process in optimized fully and perfect.Next is the design parameter optimization for Ji Huqu, reversion arc district, arc district, location and circumference arc district.In order to pursue better moulding stability, we have suitably reduced moulding speed, strengthen to greatest extent the region in Liao Jihu district and reversion arc district.Thereby significantly promote the moulding stability of cornea, effectively alleviated cornea resilience speed.
Wearing with why allowing wearer in obtaining good natural UCVA of conventional Ortho-K, target that again can achieve effective control myopia degree increase, its basic first cause is because the moulding thorough retinal peripheral defocusing state that changed of cornea; Surrounding image Relative Fuzzy, focus point after amphiblestroid---peripheral refraction degree long sight out of focus---this be that the adolescent myopia gaining public acceptance at present forms development factors.And the wearing with thoroughly changing this state of Ortho-K.
Ortho-K complete cornea moulding after, realized the conversion of periphery out of focus character---peripheral hyperopia out of focus transforms for peripheral myopic out of focus.This is very important change, has fundamentally stopped the immanent cause of myopia formation, development.
Complete moulding after, cornea lesser ring of Merkel central authorities have realized dioptric reduction, thereby complete correction of refractive errors, and cornea pupil periphery has formed ring uplift, this is to allow macula retinae district surrounding image realize the refractive power source of Myopia upset.
Ortho-K is the important breakthrough of Ortho-K technology.Its major technique Conception changing is exactly to have become more scientific rational load moulding the moulding quantitative change of rectification of only considering of original Ortho-K---and make cornea complete the dynamic refraction load that gives a feature value of eyes after moulding.
Ortho-K is not only considered the correction of refractive errors demand of Myopia out of focus, has also increased extra load dioptric demand, so its moulding amount can significantly exceed correct amount.After completing moulding, Ortho-K and extracing, due to the dioptric reduction by a larger margin of cornea central authorities, thereby will inevitably cause crystalline lens and regulate compensation, after regulating compensation, not only can maintain retina focus state, and the regulatory function strengthening for needs is a lasting training strengthening process.What is more important, along with the progressively resilience of cornea, regulates compensation slowly to reduce, and this dynamic process not only allows moulding mirror stop the time of wearing naturally to extend, and, be also the necessary of regulatory function optimization.Discharge completely until cornea continues to recoil to load dioptric, focus state can change towards out of focus direction, and at this moment, emphasis is for having felt the beginning of function optimization----by the ability of feeling, retina fuzzy image is converted to steady and audible brain vision.So Ortho-K can be realized following target simultaneously:
1) the myopia number of degrees more effectively, controlled more reliably.
2) Ortho-K need not be worn every day at all, and the time of wearing that stops after it is completely moulding generally can be at about one week, and later to wear image frequency rate fewer and feweri, stops the time of wearing can extend gradually.
3) Ortho-K can guaranteed to wear under the condition that during use, UCVA is normally stablized, the myopia number of degrees obtain more effectively controlling, progressively realize entirety " depending on " the optimizing of " feel " function, and finally along with " depending on " and the global optimization of " feel " function perfect, realize the good nature eyesight of stablizing reliably and with long-term.
Moulding and the conventional Ortho-K of cornea complete cornea moulding after, all realized the conversion of periphery out of focus character---peripheral hyperopia out of focus transforms for peripheral myopic out of focus.And the periphery out of focus situation of carefree moulding generation transform significantly, more perfect.
Ortho-K allows the eyes of let us in wearer's vision process realize dynamic refraction on a large scale truly.Cornea is moulding complete after, the slow resilience of cornea form in vision process, thus even if dynamic change does not occur visible sensation distance, its adjustment state is also in the normality of marked change.Week institute is known, lasting close eye can cause regulate ossify, the decline of regulatory function, can cause that surrounding image is fuzzy, the aggravation of peripheral hyperopia out of focus.These are all the essential condition sexual factors that causes occurrence and devlopment of myopia.Cornea is moulding complete after, the slow resilience of cornea form in vision process, this has substantially formed a kind of specific dynamic refraction state, thereby even if there is not dynamic change in visible sensation distance, its adjustment state be also change in.Here it is, and Ortho-K can more effectively, more reliably be controlled another key factor place of myopia degree increase.
In addition, circumference arc district 4 comprises inward flange, and inward flange is provided with two symmetrical stable pterions 5;
Stable pterion comprises interior top, outer end and inner side cambered surface, and inner side cambered surface is at the edge of interior top and outer end.
The distance of interior top and outer end is 1-5mm.
Inner side cambered surface is aspheric surface arc, and the radius-of-curvature of the starting point of aspheric surface arc is 10-15mm, and the radius-of-curvature of the terminal of aspheric surface arc is 11-14mm.
Inner side cambered surface is spherical arc, and the radius-of-curvature of spherical arc is 12-13mm.
Inner side cambered surface is conical surface arc, and the base angle of conical surface arc is 30 °-35 °.
The utility model is that a kind of periodicity elasticity of brand-new design is worn Ortho-K product, this employing brand new ideas design new ideas Ortho-K, join and wear with process management and wear the optimization by mode by lens design is optimized, tested comprehensively, make Ortho-K technology from then on become safer, more effectively, more convenient, more perfect.
As mentioned above, embodiment of the present utility model is explained, but as long as not departing from fact inventive point of the present utility model and effect can have a lot of distortion, this will be readily apparent to persons skilled in the art.Therefore, within such variation is also all included in protection domain of the present utility model.
Claims (6)
1. an Ortho-K, is characterized in that,
Comprise mirror body;
The inside surface of described mirror body is disposed with Ji Huqu, reversion arc district, arc district, location and circumference arc district from center to outside; Wherein
Described Ji Huqu is for ring curved surface, for reinventing corneal epithelial cell layer; Described reversion arc district is for storing tear and receiving thickening of corneal epithelial cell floor; Arc district, described location and described circumference arc district are for the location of eyeglass;
And described Ji Huqu also arranges sensor, described sensor is for measuring the dynamic refraction load capacity of cornea;
Described circumference arc district comprises inward flange, and described inward flange is provided with two symmetrical stable pterions.
2. Ortho-K according to claim 1, is characterized in that,
Described stable pterion comprises interior top, outer end and inner side cambered surface, and described inner side cambered surface is at the edge of described interior top and outer end.
3. Ortho-K according to claim 2, is characterized in that,
The distance of described interior top and outer end is 1-5mm.
4. Ortho-K according to claim 3, is characterized in that,
Described inner side cambered surface is aspheric surface arc, and the radius-of-curvature of the starting point of described aspheric surface arc is 10-15mm, and the radius-of-curvature of the terminal of described aspheric surface arc is 11-14mm.
5. Ortho-K according to claim 3, is characterized in that, described inner side cambered surface is spherical arc, and the radius-of-curvature of described spherical arc is 12-13mm.
6. Ortho-K according to claim 3, is characterized in that, described inner side cambered surface is conical surface arc, and the base angle of described conical surface arc is 30 °-35 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420309402.5U CN203930241U (en) | 2014-06-11 | 2014-06-11 | A kind of Ortho-K |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420309402.5U CN203930241U (en) | 2014-06-11 | 2014-06-11 | A kind of Ortho-K |
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| Publication Number | Publication Date |
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| CN203930241U true CN203930241U (en) | 2014-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420309402.5U Expired - Lifetime CN203930241U (en) | 2014-06-11 | 2014-06-11 | A kind of Ortho-K |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106773121A (en) * | 2017-03-17 | 2017-05-31 | 施伯彦 | A kind of hard corneal contact lens |
| CN108681100A (en) * | 2018-05-17 | 2018-10-19 | 珠海艾格医疗科技开发有限公司 | A kind of design method of Ortho-K |
| CN111708183A (en) * | 2018-12-25 | 2020-09-25 | 天津医科大学眼科医院 | Lens of cornea shaping mirror |
| CN117706804A (en) * | 2023-12-23 | 2024-03-15 | 首都医科大学附属北京同仁医院 | Method for manufacturing cornea shaping lens based on focal depth |
-
2014
- 2014-06-11 CN CN201420309402.5U patent/CN203930241U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106773121A (en) * | 2017-03-17 | 2017-05-31 | 施伯彦 | A kind of hard corneal contact lens |
| CN108681100A (en) * | 2018-05-17 | 2018-10-19 | 珠海艾格医疗科技开发有限公司 | A kind of design method of Ortho-K |
| CN108681100B (en) * | 2018-05-17 | 2020-01-07 | 珠海艾格医疗科技开发有限公司 | Method for manufacturing cornea shaping mirror |
| CN111708183A (en) * | 2018-12-25 | 2020-09-25 | 天津医科大学眼科医院 | Lens of cornea shaping mirror |
| CN117706804A (en) * | 2023-12-23 | 2024-03-15 | 首都医科大学附属北京同仁医院 | Method for manufacturing cornea shaping lens based on focal depth |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141105 |