CN112415779A - Corneal contact lens capable of improving wearing comfort - Google Patents
Corneal contact lens capable of improving wearing comfort Download PDFInfo
- Publication number
- CN112415779A CN112415779A CN202011556665.2A CN202011556665A CN112415779A CN 112415779 A CN112415779 A CN 112415779A CN 202011556665 A CN202011556665 A CN 202011556665A CN 112415779 A CN112415779 A CN 112415779A
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- circular arc
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- curved surface
- back surface
- rear surface
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- 230000002093 peripheral effect Effects 0.000 claims abstract description 29
- 230000003287 optical effect Effects 0.000 claims abstract description 8
- 238000005452 bending Methods 0.000 claims description 6
- 230000002708 enhancing effect Effects 0.000 claims 1
- 210000005252 bulbus oculi Anatomy 0.000 abstract description 9
- 208000024891 symptom Diseases 0.000 abstract description 4
- 230000007704 transition Effects 0.000 description 4
- 230000006872 improvement Effects 0.000 description 3
- 208000003556 Dry Eye Syndromes Diseases 0.000 description 2
- 206010013774 Dry eye Diseases 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 206010015967 Eye swelling Diseases 0.000 description 1
- 239000000607 artificial tear Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000003889 eye drop Substances 0.000 description 1
- 229940012356 eye drops Drugs 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 210000004561 lacrimal apparatus Anatomy 0.000 description 1
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- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C7/00—Optical parts
- G02C7/02—Lenses; Lens systems ; Methods of designing lenses
- G02C7/04—Contact lenses for the eyes
- G02C7/049—Contact lenses having special fitting or structural features achieved by special materials or material structures
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- Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Eyeglasses (AREA)
Abstract
The invention provides a corneal contact lens capable of improving wearing comfort, which comprises: the front surface consists of a central part which is a front surface optical area and a front surface peripheral area outside the central part of the front surface, and the rear surface consists of a rear surface base arc area of the central part of the rear surface and a rear surface peripheral area outside the central part of the rear surface; the front surface peripheral area is composed of two to four circular arc curved surfaces which are sequentially from inside to outside, the rear surface peripheral area is composed of eight circular arc curved surfaces which are sequentially from inside to outside, and the circular arc curved surface at the tail end of the front surface is connected with the eighth circular arc curved surface on the rear surface through a connecting area. The corneal contact lens provided by the invention can enable tears to flow more smoothly between eyeballs and the corneal contact lens, effectively relieve uncomfortable symptoms caused by wearing the corneal contact lens for a long time and improve wearing comfort.
Description
Technical Field
The invention relates to a corneal contact lens, in particular to a corneal contact lens capable of improving wearing comfort.
Background
Contact lenses are popular with users because of their ease of wearing, but can be uncomfortable to wear for extended periods of time. After lacrimal glands secrete tears, the tears can freely flow on the surface of an eyeball, after the rigid corneal contact lens is worn, the positions where the corneal contact lens is worn on the eyeball are isolated from other positions due to the isolation of the peripheral area, so that the tears secreted from the positions where the corneal contact lens is worn can not flow with the tears on other positions, and therefore symptoms such as dry eyes, red and swollen eyes and the like appear, and some serious patients even need to match eye drops with artificial tears to relieve uncomfortable symptoms.
At present, the peripheral area of the existing corneal contact lens is usually formed by an arc surface, and the curvature of the arc is bent towards one side, so that the tear on the surface of the eyeball can not flow smoothly due to the structure, and further, the user is uncomfortable and is not beneficial to wearing, and the improvement is needed urgently.
Disclosure of Invention
The invention aims to provide a corneal contact lens capable of improving wearing comfort, which can change the structure of a peripheral zone and obviously improve the wearing comfort of a wearer.
To achieve the above object, the present invention provides a contact lens capable of improving wearing comfort, comprising: the front surface consists of a central part which is a front surface optical area and a front surface peripheral area outside the central part of the front surface, and the rear surface consists of a rear surface base arc area of the central part of the rear surface and a rear surface peripheral area outside the central part of the rear surface; the front surface peripheral zone is composed of two to four circular arc curved surfaces which are sequentially from inside to outside, wherein the arc centers of the tail circular arc curved surface of the front surface and other circular arc curved surfaces of the front surface are not on the same side, the rear surface peripheral zone is composed of eight circular arc curved surfaces which are sequentially from inside to outside, the bending directions of the first circular arc curved surface of the rear surface, the second circular arc curved surface of the rear surface, the fourth circular arc curved surface of the rear surface, the fifth circular arc curved surface of the rear surface, the sixth circular arc curved surface of the rear surface and the eighth circular arc curved surface of the rear surface are the same, the bending directions of the third circular arc curved surface of the rear surface and the seventh circular arc curved surface of the rear surface are not on the same side as the arc center of the first circular arc curved surface, and the.
Optionally, the rear surface first arc curved surface is connected with the rear surface base arc area.
Optionally, the arc center of the rear surface first arc curved surface is on the same side as the arc center of the body.
Optionally, a joint of the rear surface first arc curved surface and the rear surface base arc area is tangent, and a curvature radius of the rear surface first arc curved surface is 0.1mm to 0.5mm larger than that of the rear surface base arc area; the rear surface first arc curved surface is tangent to the rear surface second arc curved surface, and the curvature radius of the rear surface second arc curved surface is the same as that of the rear surface base arc area; the second circular arc curved surface of the back surface is reversely tangent to a third circular arc curved surface of the back surface, and the curvature radius of the third circular arc curved surface of the back surface is 1 mm-20 mm; the fourth arc curved surface of the back surface is reversely tangent to the third arc curved surface of the back surface, and the curvature radius of the fourth arc curved surface of the back surface is 1-10 mm larger than that of the base arc area of the back surface; the fifth circular arc curved surface of the back surface is tangent to the fourth circular arc curved surface of the back surface, and the curvature radius of the fifth circular arc curved surface of the back surface is 0.5mm to 3mm smaller than that of the base arc area of the back surface; the sixth circular arc curved surface of the back surface is tangent to the fifth circular arc curved surface of the back surface, and the curvature radius of the sixth circular arc curved surface of the back surface is 1-5 mm larger than that of the first circular arc curved surface of the back surface; the seventh circular arc curved surface of the back surface is reversely tangent to the sixth circular arc curved surface of the back surface, and the curvature radius of the seventh circular arc curved surface of the back surface is 1 mm-20 mm; the eighth circular arc curved surface of the back surface is reversely tangent to the seventh circular arc curved surface of the back surface, and the curvature radius of the eighth circular arc curved surface of the back surface is 1-10 mm larger than that of the basal arc area of the back surface.
Optionally, the centers of the rear surface first arc curved surface, the rear surface second arc curved surface, the rear surface fourth arc curved surface, the rear surface fifth arc curved surface, the rear surface sixth arc curved surface and the rear surface eighth arc curved surface are all on the central axis of the body.
Optionally, the arc center of the front surface end arc curved surface is on the same side as the arc center of the body.
Optionally, the connection region is connected to the eighth arc curved surface of the rear surface and the front surface.
Optionally, the radius of curvature of the front surface end circular arc curved surface is 30mm to 1 mm.
Optionally, when there is one other arc curved surface of the front surface, the other arc curvature radius of the front surface is 10mm to 30 mm.
Optionally, when there are two other arc curved surfaces on the front surface, the arc curvature radius adjacent to the front surface optical zone is 10mm to 30mm, and the arc curvature radius adjacent to the arc curved surface at the end of the front surface is 15mm to 30 mm.
According to the corneal contact lens capable of improving wearing comfort, the peripheral area is formed by the eight cambered surfaces and has different directions, tears on the surface of an eyeball can flow sufficiently, and uncomfortable symptoms such as dry eyes and the like are effectively avoided. In addition, by changing the structure of the peripheral areas of the front surface and the rear surface, the wearing comfort of a user is obviously improved, particularly, the third arc-shaped curved surface of the rear surface and the seventh arc-shaped curved surface of the rear surface provide a transition, so that tears flow more smoothly between eyeballs and the corneal contact lens, discomfort caused by wearing the corneal contact lens for a long time is effectively relieved, and the wearing comfort is improved.
Drawings
FIG. 1 is a cross-sectional view of a corneal contact lens of an embodiment of the present invention;
FIG. 2 is a three-dimensional schematic view of a front surface of an embodiment of the present invention;
FIG. 3 is a three-dimensional schematic representation of the rear surface of an embodiment of the present invention;
FIG. 4 is a schematic diagram of a front surface peripheral area in two parts according to an embodiment of the present invention;
FIG. 5 is a schematic perspective view of FIG. 4;
FIG. 6 is a schematic diagram of three portions of a front surface peripheral region according to an embodiment of the present invention;
FIG. 7 is a schematic perspective view of FIG. 6;
FIG. 8 is a schematic view of a rear surface peripheral region in accordance with an embodiment of the present invention;
FIG. 9 is a schematic perspective view of FIG. 8;
fig. 10 is a plan view of a rear surface peripheral region according to an embodiment of the present invention;
FIG. 11 is an enlarged schematic view of a connection region of an embodiment of the present invention;
fig. 12 is an enlarged schematic view of the rear surface peripheral region according to the embodiment of the invention.
In the figure: 1. a front surface; 11. an anterior surface optical zone; 12. a front surface peripheral region; 121. a front surface end arc curved surface; 122. other arc curved surfaces on the front surface; 2. a rear surface; 21. a back surface base arc region; 22. a rear surface peripheral region; 221. a rear surface first arc curved surface; 222. a rear surface second arc curved surface; 223. a third arc surface of the rear surface; 224. a fourth arc curved surface of the rear surface; 225. a fifth circular arc curved surface of the rear surface; 226. a sixth circular arc curved surface of the rear surface; 227. a seventh circular arc curved surface of the rear surface; 228. an eighth arc curved surface of the rear surface; 3. a connecting region; 4. a body.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Example 1
As shown, the present embodiment provides a contact lens capable of improving wearing comfort, comprising: the optical lens comprises a body 4, a front surface 1 and a back surface 2 of the body, wherein the front surface 1 is composed of a front surface optical area 11 with a central part and a front surface peripheral area 12 outside the central part of the front surface, and the back surface 2 is composed of a back surface base arc area 21 of the central part of the back surface and a back surface peripheral area 22 outside the central part of the back surface; the front surface peripheral area 12 is composed of two to four circular arc curved surfaces sequentially from inside to outside, wherein the arc center of the front surface tail end circular arc curved surface 121 is not on the same side as the arc center of the other circular arc curved surfaces 122 of the front surface, the rear surface peripheral area 22 is composed of eight circular arc curved surfaces sequentially from inside to outside, the bending directions of the rear surface first arc curved surface 221, the rear surface second arc curved surface 222, the rear surface fourth arc curved surface 224, the rear surface fifth arc curved surface 225, the rear surface sixth arc curved surface 226 and the rear surface eighth arc curved surface 228 are the same, the bending directions of the rear surface third arc curved surface 223 and the rear surface seventh arc curved surface 227 are not on the same side as the arc center of the rear surface first arc curved surface 221, the front surface end arc curved surface 121 and the rear surface eighth arc curved surface 228 are connected through the connection area 3, and the rear surface first arc curved surface 221 is connected with the rear surface base arc area 21.
The arc center of the first arc curved surface 221 of the rear surface is on the same side as the arc center of the body.
The junction of the rear surface first arc curved surface 221 and the rear surface base arc area 21 is tangent, and the curvature radius of the rear surface first arc 221 curved surface is 0.1mm to 0.5mm larger than that of the rear surface base arc area 21; the rear surface first arc curved surface 221 is tangent to the rear surface second arc curved surface 222, and the curvature radius of the rear surface second arc curved surface 222 is the same as that of the rear surface base arc area 21; the rear surface second arc curved surface 222 is reversely tangent to the rear surface third arc curved surface 223, and the curvature radius of the rear surface third arc curved surface 223 is 1mm to 20 mm; the rear surface fourth arc curved surface 224 is reversely tangent to the rear surface third arc curved surface 223, and the curvature radius of the rear surface fourth arc curved surface 224 is 1mm to 10mm larger than that of the rear surface base arc area 21; the rear surface fifth arc curved surface 225 is tangent to the rear surface fourth arc curved surface 224, and the curvature radius of the rear surface fifth arc curved surface 225 is 0.5mm to 3mm smaller than that of the rear surface base arc area 21; the rear surface sixth arc curved surface 226 is tangent to the rear surface fifth arc curved surface 225, and the curvature radius of the rear surface sixth arc curved surface 226 is 1mm to 5mm larger than that of the rear surface first arc curved surface 221; the seventh circular arc curved surface 227 of the back surface is reversely tangent to the sixth circular arc curved surface 226 of the back surface, and the curvature radius of the seventh circular arc curved surface 227 of the back surface is 1mm to 20 mm; the eighth circular arc curved surface 228 of the back surface is reversely tangent to the seventh circular arc curved surface 227 of the back surface, and the curvature radius of the eighth circular arc curved surface 228 of the back surface is 1mm to 10mm larger than that of the base arc area 21 of the back surface. The centers of the rear surface first arc curved surface 221, the rear surface second arc curved surface 222, the rear surface fourth arc curved surface 224, the rear surface fifth arc curved surface 225, the rear surface sixth arc curved surface 226 and the rear surface eighth arc curved surface 228 are all on the central axis of the body.
The arc center of the front surface end arc curved surface 121 is on the same side as the arc center of the body.
The front surface end arc curved surface 121 and the rear surface eighth arc curved surface 228 are connected with the connection region 3 in an arc shape. The front surface end circular arc curved surface 121 has a radius of curvature of 30mm to 1 mm.
When the other circular arc curved surface 122 of the front surface is one, the radius of the other circular arc curvature 122 of the front surface is 10mm to 30 mm.
Example 2
In example 1, when two other curved arc surfaces are provided on the front surface, the radius of curvature of the arc adjacent to the front surface optical zone is 10mm to 30mm, and the radius of curvature of the arc adjacent to the curved arc surface at the end of the front surface is 15mm to 30 mm. The rest of the process is the same as that of the process of embodiment 1, and is not repeated.
The principle of the invention is as follows: the third arc curved surface on the back surface and the seventh arc curved surface on the back surface provide a transition, which is different from the directions of other arcs, so that tears can flow more smoothly between an eyeball and a corneal contact lens, and discomfort caused by wearing the corneal contact lens for a long time can be effectively relieved; meanwhile, the thickness of the lens is reduced, and the lens plays a transition role when being connected with other arcs, so that the gap between the eyeball and the peripheral arc is larger, wherein the third arc curved surface of the rear surface and the seventh arc curved surface of the rear surface are respectively and reversely tangent with the adjacent arc curved surfaces, so that the lens can be in better transition, and the compression of the joint of the arc and the arc on the eyeball is effectively reduced.
The corneal contact lens of the present invention, which provides improved comfort, is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the core concepts of the present invention. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (10)
1. A contact lens for enhancing wearer comfort, comprising: the front surface consists of a central part which is a front surface optical area and a front surface peripheral area outside the central part of the front surface, and the rear surface consists of a rear surface base arc area of the central part of the rear surface and a rear surface peripheral area outside the central part of the rear surface; the front surface peripheral zone is composed of two to four circular arc curved surfaces which are sequentially from inside to outside, wherein the arc centers of the tail circular arc curved surface of the front surface and other circular arc curved surfaces of the front surface are not on the same side, the rear surface peripheral zone is composed of eight circular arc curved surfaces which are sequentially from inside to outside, the bending directions of the first circular arc curved surface of the rear surface, the second circular arc curved surface of the rear surface, the fourth circular arc curved surface of the rear surface, the fifth circular arc curved surface of the rear surface, the sixth circular arc curved surface of the rear surface and the eighth circular arc curved surface of the rear surface are the same, the bending directions of the third circular arc curved surface of the rear surface and the seventh circular arc curved surface of the rear surface are not on the same side as the arc center of the first circular arc curved surface of the rear surface.
2. The contact lens of claim 1, wherein the posterior surface first radius surface is connected to the posterior surface base radius.
3. The contact lens of claim 2, wherein the arc center of the first circular arc surface of the back surface is on the same side as the arc center of the body.
4. A contact lens for improving wearing comfort as claimed in claim 1, wherein the junction of the first curved surface of the back surface and the basal arc zone of the back surface is tangent, and the radius of curvature of the first curved surface of the back surface is 0.1mm to 0.5mm larger than that of the basal arc zone of the back surface; the rear surface first arc curved surface is tangent to the rear surface second arc curved surface, and the curvature radius of the rear surface second arc curved surface is the same as that of the rear surface base arc area; the second circular arc curved surface of the back surface is reversely tangent to a third circular arc curved surface of the back surface, and the curvature radius of the third circular arc curved surface of the back surface is 1 mm-20 mm; the fourth arc curved surface of the back surface is reversely tangent to the third arc curved surface of the back surface, and the curvature radius of the fourth arc curved surface of the back surface is 1-10 mm larger than that of the base arc area of the back surface; the fifth circular arc curved surface of the back surface is tangent to the fourth circular arc curved surface of the back surface, and the curvature radius of the fifth circular arc curved surface of the back surface is 0.5mm to 3mm smaller than that of the base arc area of the back surface; the sixth circular arc curved surface of the back surface is tangent to the fifth circular arc curved surface of the back surface, and the curvature radius of the sixth circular arc curved surface of the back surface is 1-5 mm larger than that of the first circular arc curved surface of the back surface; the seventh circular arc curved surface of the back surface is reversely tangent to the sixth circular arc curved surface of the back surface, and the curvature radius of the seventh circular arc curved surface of the back surface is 1 mm-20 mm; the eighth circular arc curved surface of the back surface is reversely tangent to the seventh circular arc curved surface of the back surface, and the curvature radius of the eighth circular arc curved surface of the back surface is 1-10 mm larger than that of the basal arc area of the back surface.
5. The contact lens of claim 4, wherein the centers of the first circular arc curved surface of the back surface, the second circular arc curved surface of the back surface, the fourth circular arc curved surface of the back surface, the fifth circular arc curved surface of the back surface, the sixth circular arc curved surface of the back surface and the eighth circular arc curved surface of the back surface are all on the central axis of the body.
6. The contact lens of claim 1, wherein the arc center of the front surface end curved surface is on the same side as the arc center of the body.
7. The contact lens of claim 1, wherein the junction between the front surface end curved surface and the eighth curved surface of the back surface and the connecting region is a circular arc.
8. The contact lens of claim 1, wherein the front surface tip end radius of curvature is between 30mm and 1 mm.
9. The contact lens of claim 1, wherein when the other circular arc surface of the anterior surface is one, the other circular arc curvature radius of the anterior surface is 10mm to 30 mm.
10. The contact lens of claim 1, wherein when there are two additional curved arc surfaces on the anterior surface, the radius of curvature of the arc adjacent the optic zone of the anterior surface is between 10mm and 30mm and the radius of curvature of the arc adjacent the distal curved arc surface of the anterior surface is between 15mm and 30 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011556665.2A CN112415779B (en) | 2020-12-25 | 2020-12-25 | A corneal contact lens capable of improving wearing comfort |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011556665.2A CN112415779B (en) | 2020-12-25 | 2020-12-25 | A corneal contact lens capable of improving wearing comfort |
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| Publication Number | Publication Date |
|---|---|
| CN112415779A true CN112415779A (en) | 2021-02-26 |
| CN112415779B CN112415779B (en) | 2024-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011556665.2A Active CN112415779B (en) | 2020-12-25 | 2020-12-25 | A corneal contact lens capable of improving wearing comfort |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008112120A (en) * | 2006-10-30 | 2008-05-15 | Eyemed Co Ltd | Multiple surface fitting ortho-k lens |
| CN102047172A (en) * | 2008-06-06 | 2011-05-04 | 全球美好视觉公司 | Soft contact lenses for treating ametropia |
| CN108008544A (en) * | 2017-12-06 | 2018-05-08 | 爱博诺德（北京）医疗科技有限公司 | Method for manufacturing Ortho-K |
| CN108363219A (en) * | 2018-04-02 | 2018-08-03 | 广州豪赋医学科技有限公司 | A kind of hard corneal contact lens |
| CN208270872U (en) * | 2017-04-30 | 2018-12-21 | 欧普康视科技股份有限公司 | Correct the hard corneal contact lens of irregular cornea eyesight |
| CN213780578U (en) * | 2020-12-25 | 2021-07-23 | 沈阳百奥医疗器械有限公司 | Corneal contact lens capable of improving wearing comfort |
-
2020
- 2020-12-25 CN CN202011556665.2A patent/CN112415779B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008112120A (en) * | 2006-10-30 | 2008-05-15 | Eyemed Co Ltd | Multiple surface fitting ortho-k lens |
| CN102047172A (en) * | 2008-06-06 | 2011-05-04 | 全球美好视觉公司 | Soft contact lenses for treating ametropia |
| CN208270872U (en) * | 2017-04-30 | 2018-12-21 | 欧普康视科技股份有限公司 | Correct the hard corneal contact lens of irregular cornea eyesight |
| CN108008544A (en) * | 2017-12-06 | 2018-05-08 | 爱博诺德（北京）医疗科技有限公司 | Method for manufacturing Ortho-K |
| CN108363219A (en) * | 2018-04-02 | 2018-08-03 | 广州豪赋医学科技有限公司 | A kind of hard corneal contact lens |
| CN213780578U (en) * | 2020-12-25 | 2021-07-23 | 沈阳百奥医疗器械有限公司 | Corneal contact lens capable of improving wearing comfort |
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| Publication number | Publication date |
|---|---|
| CN112415779B (en) | 2024-11-26 |
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Effective date of registration: 20231007 Address after: 110163 Surabaya street, Hunnan District, Shenyang, Liaoning 66 Applicant after: SHENYANG BAIAO MEDICAL DEVICES CO.,LTD. Address before: No. 66, Sishui street, Dongling District, Shenyang City, Liaoning Province Applicant before: SHENYANG BAIAO MEDICAL DEVICES CO.,LTD. Applicant before: SHENYANG HESHI EYE INDUSTRY GROUP CO.,LTD. |
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