CN101881892A - Novel rigid air-permeable corneal contact lens - Google Patents
Novel rigid air-permeable corneal contact lens Download PDFInfo
- Publication number
- CN101881892A CN101881892A CN2010102085542A CN201010208554A CN101881892A CN 101881892 A CN101881892 A CN 101881892A CN 2010102085542 A CN2010102085542 A CN 2010102085542A CN 201010208554 A CN201010208554 A CN 201010208554A CN 101881892 A CN101881892 A CN 101881892A
- Authority
- CN
- China
- Prior art keywords
- arc
- contact lens
- novel rigid
- rigid air
- permeable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 210000004087 cornea Anatomy 0.000 claims abstract description 29
- 239000003381 stabilizer Substances 0.000 claims description 30
- 201000002287 Keratoconus Diseases 0.000 claims description 5
- 230000004438 eyesight Effects 0.000 abstract description 2
- 230000000087 stabilizing effect Effects 0.000 abstract 7
- 230000002093 peripheral effect Effects 0.000 abstract 2
- 210000000695 crystalline len Anatomy 0.000 description 17
- 210000000795 conjunctiva Anatomy 0.000 description 2
- 241000219739 Lens Species 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000000366 juvenile effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 208000001491 myopia Diseases 0.000 description 1
- 230000004379 myopia Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 210000003786 sclera Anatomy 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- G02C7/048—Means for stabilising the orientation of lenses in the eye
Landscapes
- Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Eyeglasses (AREA)
- Prostheses (AREA)
Abstract
The invention discloses a novel rigid air-permeable corneal contact lens, which comprises a peripheral arc area of a lens and is characterized in that: the inner edge of the peripheral arc region of the contact lens is provided with two symmetrical stabilizing wing regions; the distance between the inner top end and the outer top end of the stabilizing wing area is 0.2-7 mm; the inner side cambered surface of the concave surface of each stabilizing wing is a conical surface arc, a spherical surface arc or an aspheric surface arc. The inner arc surface of each stabilizing wing is a conical surface arc bottom angle of 20-40 degrees. The inner side cambered surface of the stabilizing wing is a spherical surface arc with the curvature radius of 6-25 mm. The inner side cambered surface of the stabilizing wing is an aspheric surface arc, the difference of the curvature radiuses of the starting point and the ending point of the aspheric surface arc is 0-1mm, and the curvature radiuses of the starting point and the ending point are 6-25 mm. The inner arc surface of the stabilizing wing is a single arc or multiple arcs, and the multiple arcs are single multiple arcs or combined multiple arcs of a conical surface arc, a spherical surface arc or an aspheric surface arc. The structure of the invention increases the stability and centering performance of various lenses on the cornea, so that the fitting state of various corneal contact lenses on the cornea can reach more ideal, and the vision can also reach the most ideal state.
Description
Technical field
The present invention relates to a kind of cornea contact lense, relate in particular to a kind of novel rigid air-permeable cornea contact lens.
Background technology
Hard corneal contact lens is compared with soft contact lens, has both improved oxygen permeability, guarantees the fastness of material again, and has good wettability and resistance to settling.It has stood domestic and international ophthalmologist, oculist clinical verification for many years to control, the corrective therapy effect of juvenile true myopia and keratoconus, and has obtained certainly.At present, hard corneal contact lens only places the conjunctiva chamber of canthus limbus of sclera scope usually, directly is close to lower tarsal conjunctiva and cornea, because there is the desirable not to the utmost situation in the location of various hard corneal contact lenses on cornea in the scrambling of people's cornea.
Summary of the invention
The objective of the invention is at the problems referred to above, propose a kind of novel rigid air-permeable cornea contact lens, changed the location of various hard corneal contact lenses on cornea ideal situation not to the utmost, strengthened stability and the placed in the middle disposition of various eyeglasses at cornea.
Technical scheme of the present invention is:
A kind of novel rigid air-permeable cornea contact lens comprises the circumference arc district of eyeglass, and it is characterized in that: the inward flange in the circumference arc district of described novel rigid contact lens is provided with the stable pterion of two symmetries; The interior outer end of described stable pterion end apart from 0.2-7mm; The inboard cambered surface of the concave surface of described stabilizer is conical surface arc, spherical arc or aspheric surface arc.
The inboard cambered surface of described stabilizer is that the base angle of conical surface arc is 20 °-40 °.
The inboard cambered surface of described stabilizer is a spherical arc, radius-of-curvature 6-25mm.
The inboard cambered surface of described stabilizer is the aspheric surface arc, and the absolute difference of the radius-of-curvature of aspheric surface arc starting point and terminal point is 0-1mm, starting point radius-of-curvature 6-25mm, terminal point radius-of-curvature 6-25mm.
The inboard cambered surface of described stabilizer is single arc or multi sphere, and described multi sphere is the single multi sphere or the combination multi sphere of conical surface arc, spherical arc or aspheric surface arc.
Described stabilizer is arc, trapezoidal or rectangle.
Described stabilizer utilizes mode bonding or cutting to connect.
Described eyeglass kind is used eyeglass after comprising hard corneal contact lens, Ortho-K, keratoconus eyeglass, scleroscope and operation on cornea.
The arc district, neighboring of described stabilizer is curved in fillet and the convex surface.
Beneficial effect of the present invention:
The present invention is using behind hard corneal contact lens, Ortho-K, keratoconus eyeglass, scleroscope and the operation on cornea on the corresponding edge of eyeglass, make the arc of two symmetries, trapezoidal or rectangular curved surface, changed because the scrambling of people's cornea, cause the desirable not to the utmost situation in the location of various hard corneal contact lenses on cornea, this curved surface has increased stability and the placed in the middle disposition of various eyeglasses at cornea, allow the join suitable state of various contact lenss on cornea reach betterly, eyesight also reaches optimal state.
Description of drawings
Fig. 1 is the arcuate structure vertical view for stabilizer of the present invention
Fig. 2 is an A-A cut-open view among Fig. 1
Fig. 3 is the structural representation of aspheric surface arc two arcs for the inboard cambered surface of stabilizer
As shown in the figure, 1-eyeglass, 2-circumference arc district, 3-stabilizer, the inboard cambered surface 5-conical surface arc base angle of 4-stabilizer
Embodiment
The invention will be further described below in conjunction with Figure of description.
As shown in Fig. 1-3, a kind of novel rigid air-permeable cornea contact lens in the present patent application comprises the circumference arc district 2 of eyeglass 1, and it is characterized in that: the inward flange in the circumference arc district 2 of described novel rigid contact lens is provided with the stable pterion 3 of two symmetries; The distance D of the interior outer end of described stabilizer 3 districts end is 0.2-7mm; The inboard cambered surface 4 of described stabilizer 3 is conical surface arc, spherical arc or aspheric surface arc.
The inboard cambered surface 4 of described stabilizer is 20 °-40 ° for conical surface arc base angle 5.
The inboard cambered surface 4 of described stabilizer is a spherical arc, radius-of-curvature 6-25mm.
The inboard cambered surface 4 of described stabilizer is the aspheric surface arc, and the absolute difference of the radius-of-curvature of aspheric surface arc starting point and terminal point is 0-1mm, starting point radius-of-curvature 6-25mm, terminal point radius-of-curvature 6-25mm.
The inboard cambered surface of described stabilizer is single arc or multi sphere, and described multi sphere is conical surface arc, spherical arc or the single multi sphere of aspheric surface arc or combination multi sphere.
As shown in Figure 3, the inboard cambered surface of described stabilizer is the structure of aspheric surface arc two arcs, and the absolute difference of the radius-of-curvature of every section aspheric surface arc starting point and terminal point is 0-1mm, i.e. the absolute difference 0-1mm of R2 and R1, the absolute difference 0-1mm of R3 and R4.
Described stabilizer is arc, trapezoidal or rectangle.
Described stabilizer utilizes mode bonding or cutting to connect.
Described eyeglass kind comprises hard corneal contact lens, Ortho-K, keratoconus eyeglass, Gong Jingjing.
The arc district, neighboring of described stabilizer is curved in fillet and the convex surface.
Claims (9)
1. novel rigid air-permeable cornea contact lens comprises the circumference arc district of eyeglass, and it is characterized in that: the inward flange in the circumference arc district of described novel rigid contact lens is provided with the stable pterion of two symmetries; The interior outer end of described stable pterion end apart from 0.2-7mm; The inboard cambered surface of the concave surface of described stabilizer is conical surface arc, spherical arc or aspheric surface arc.
2. novel rigid air-permeable cornea contact lens according to claim 1 is characterized in that: the inboard cambered surface of described stabilizer is that the base angle of conical surface arc is 20 °-40 °.
3. novel rigid air-permeable cornea contact lens according to claim 1 is characterized in that: the inboard cambered surface of described stabilizer is a spherical arc, radius-of-curvature 6-25mm.
4. novel rigid air-permeable cornea contact lens according to claim 1, it is characterized in that: the inboard cambered surface of described stabilizer is the aspheric surface arc, the absolute difference of the radius-of-curvature of aspheric surface arc starting point and terminal point is 0-1mm, starting point radius-of-curvature 6-25mm, terminal point radius-of-curvature 6-25mm.
5. according to the described novel rigid air-permeable cornea contact lens of one of claim 1 to 4, it is characterized in that: the inboard cambered surface of described stabilizer is single arc or multi sphere, and described multi sphere is the single multi sphere or the combination multi sphere of conical surface arc, spherical arc or aspheric surface arc.
6. novel rigid air-permeable cornea contact lens according to claim 1 is characterized in that: described stabilizer is arc, trapezoidal or rectangle.
7. novel rigid air-permeable cornea contact lens according to claim 1 is characterized in that: described stabilizer utilizes mode bonding or cutting to connect.
8. novel rigid air-permeable cornea contact lens according to claim 1 is characterized in that: described eyeglass kind is used eyeglass after comprising hard corneal contact lens, Ortho-K, keratoconus eyeglass, scleroscope and operation on cornea.
9. novel rigid air-permeable cornea contact lens according to claim 1 is characterized in that: the arc district, neighboring of described stabilizer is curved in fillet and the convex surface.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102085542A CN101881892A (en) | 2010-06-24 | 2010-06-24 | Novel rigid air-permeable corneal contact lens |
| CN2010102821781A CN101950089B (en) | 2010-06-24 | 2010-09-15 | Novel rigid gas permeable cornea contact lens |
| PCT/CN2011/000961 WO2011160426A1 (en) | 2010-06-24 | 2011-06-14 | Rigid gas-permeable cornea contact lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102085542A CN101881892A (en) | 2010-06-24 | 2010-06-24 | Novel rigid air-permeable corneal contact lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101881892A true CN101881892A (en) | 2010-11-10 |
Family
ID=43053943
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102085542A Pending CN101881892A (en) | 2010-06-24 | 2010-06-24 | Novel rigid air-permeable corneal contact lens |
| CN2010102821781A Expired - Fee Related CN101950089B (en) | 2010-06-24 | 2010-09-15 | Novel rigid gas permeable cornea contact lens |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102821781A Expired - Fee Related CN101950089B (en) | 2010-06-24 | 2010-09-15 | Novel rigid gas permeable cornea contact lens |
Country Status (2)
| Country | Link |
|---|---|
| CN (2) | CN101881892A (en) |
| WO (1) | WO2011160426A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011160426A1 (en) * | 2010-06-24 | 2011-12-29 | Lin Yan | Rigid gas-permeable cornea contact lens |
| CN105259672A (en) * | 2015-11-02 | 2016-01-20 | 陈迪生 | A special-shaped scleral lens |
| WO2018166075A1 (en) * | 2017-03-17 | 2018-09-20 | 施伯彦 | Hard corneal contact lens |
| CN111931737A (en) * | 2020-09-28 | 2020-11-13 | 汉桑（南京）科技有限公司 | Corneal mirror abnormity judgment method and system |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1164037A (en) * | 1995-03-15 | 1997-11-05 | 诺瓦提斯公司 | Rotationally stabilized contact lens and methods of lens stabilization |
| CN2343997Y (en) * | 1998-08-05 | 1999-10-20 | 王平 | Sucking disk type corneal contact lens for treating myopia |
| US6183082B1 (en) * | 1998-12-21 | 2001-02-06 | Johnson & Johnson Vision Care, Inc. | Contact lenses with constant peripheral geometry |
| US6325509B1 (en) * | 1999-08-20 | 2001-12-04 | Art Optical Contact Lens, Inc. | Low-mass ophthalmic lens |
| US6491392B2 (en) * | 2000-12-08 | 2002-12-10 | Johnson & Johnson Vison Care, Inc. | Dynamically stabilized contact lenses |
| AU2002319593A1 (en) * | 2002-07-19 | 2004-02-09 | Johnson & Johnson Vision Care, Inc. | Rotationally stabilized contact lenses |
| CN2609011Y (en) * | 2003-01-16 | 2004-03-31 | 上海卫康光学有限公司 | Multi-arc contact lenses |
| US6939005B2 (en) * | 2003-08-20 | 2005-09-06 | Johnson & Johnson Vision Care Inc. | Rotationally stabilized contact lenses |
| US7201480B2 (en) * | 2004-05-20 | 2007-04-10 | Johnson & Johnson Vision Care, Inc. | Methods for rotationally stabilizing contact lenses |
| CN2890976Y (en) * | 2005-12-16 | 2007-04-18 | 刘�东 | Cornea forming contact lens |
| TW200741278A (en) * | 2006-04-28 | 2007-11-01 | Wei-Bin Shiu | Contact lenses |
| CN100492102C (en) * | 2006-10-20 | 2009-05-27 | 中山大学中山眼科中心 | Therapeutic hard air-permeable cornea contact mirror |
| KR101090840B1 (en) * | 2008-10-13 | 2011-12-08 | 박경진 | Intraocular lens supporter and manufacturing method thereof |
| CN101881892A (en) * | 2010-06-24 | 2010-11-10 | 陈迪生 | Novel rigid air-permeable corneal contact lens |
-
2010
- 2010-06-24 CN CN2010102085542A patent/CN101881892A/en active Pending
- 2010-09-15 CN CN2010102821781A patent/CN101950089B/en not_active Expired - Fee Related
-
2011
- 2011-06-14 WO PCT/CN2011/000961 patent/WO2011160426A1/en not_active Ceased
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011160426A1 (en) * | 2010-06-24 | 2011-12-29 | Lin Yan | Rigid gas-permeable cornea contact lens |
| CN105259672A (en) * | 2015-11-02 | 2016-01-20 | 陈迪生 | A special-shaped scleral lens |
| WO2018166075A1 (en) * | 2017-03-17 | 2018-09-20 | 施伯彦 | Hard corneal contact lens |
| CN111931737A (en) * | 2020-09-28 | 2020-11-13 | 汉桑（南京）科技有限公司 | Corneal mirror abnormity judgment method and system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101950089A (en) | 2011-01-19 |
| CN101950089B (en) | 2012-06-27 |
| WO2011160426A1 (en) | 2011-12-29 |
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