GB1568136A - Soft contact lens - Google Patents
Soft contact lens Download PDFInfo
- Publication number
- GB1568136A GB1568136A GB5269177A GB5269177A GB1568136A GB 1568136 A GB1568136 A GB 1568136A GB 5269177 A GB5269177 A GB 5269177A GB 5269177 A GB5269177 A GB 5269177A GB 1568136 A GB1568136 A GB 1568136A
- Authority
- GB
- United Kingdom
- Prior art keywords
- collagen
- lens
- contact lens
- soft contact
- gel
- 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.)
- Expired
Links
- 102000008186 Collagen Human genes 0.000 description 102
- 108010035532 Collagen Proteins 0.000 description 102
- 229920001436 collagen Polymers 0.000 description 101
- 239000000499 gel Substances 0.000 description 26
- 239000000463 material Substances 0.000 description 21
- 238000000034 method Methods 0.000 description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 17
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 14
- 238000004132 cross linking Methods 0.000 description 14
- 239000000512 collagen gel Substances 0.000 description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- 108010010803 Gelatin Proteins 0.000 description 8
- 239000008273 gelatin Substances 0.000 description 8
- 229920000159 gelatin Polymers 0.000 description 8
- 235000019322 gelatine Nutrition 0.000 description 8
- 235000011852 gelatine desserts Nutrition 0.000 description 8
- 210000004087 cornea Anatomy 0.000 description 7
- 229910052757 nitrogen Inorganic materials 0.000 description 7
- 239000000470 constituent Substances 0.000 description 6
- 239000011521 glass Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 229910001369 Brass Inorganic materials 0.000 description 4
- 102000057297 Pepsin A Human genes 0.000 description 4
- 108090000284 Pepsin A Proteins 0.000 description 4
- 108091005804 Peptidases Proteins 0.000 description 4
- 102000035195 Peptidases Human genes 0.000 description 4
- 239000010951 brass Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 229940111202 pepsin Drugs 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- FALRKNHUBBKYCC-UHFFFAOYSA-N 2-(chloromethyl)pyridine-3-carbonitrile Chemical compound ClCC1=NC=CC=C1C#N FALRKNHUBBKYCC-UHFFFAOYSA-N 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 description 3
- 102000004190 Enzymes Human genes 0.000 description 3
- 108090000790 Enzymes Proteins 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 239000004809 Teflon Substances 0.000 description 3
- 229920006362 Teflon® Polymers 0.000 description 3
- 238000007385 chemical modification Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 229940088598 enzyme Drugs 0.000 description 3
- 102000004169 proteins and genes Human genes 0.000 description 3
- 108090000623 proteins and genes Proteins 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 229940014800 succinic anhydride Drugs 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- PSLIMVZEAPALCD-UHFFFAOYSA-N ethanol;ethoxyethane Chemical compound CCO.CCOCC PSLIMVZEAPALCD-UHFFFAOYSA-N 0.000 description 2
- -1 formaldahyde Chemical class 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 230000003381 solubilizing effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- 229920002818 (Hydroxyethyl)methacrylate Polymers 0.000 description 1
- DNIAPMSPPWPWGF-GSVOUGTGSA-N (R)-(-)-Propylene glycol Chemical compound C[C@@H](O)CO DNIAPMSPPWPWGF-GSVOUGTGSA-N 0.000 description 1
- 102000029816 Collagenase Human genes 0.000 description 1
- 108060005980 Collagenase Proteins 0.000 description 1
- WOBHKFSMXKNTIM-UHFFFAOYSA-N Hydroxyethyl methacrylate Chemical compound CC(=C)C(=O)OCCO WOBHKFSMXKNTIM-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 108010059712 Pronase Proteins 0.000 description 1
- 108090000631 Trypsin Proteins 0.000 description 1
- 102000004142 Trypsin Human genes 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000000172 allergic effect Effects 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 150000008064 anhydrides Chemical class 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 208000010668 atopic eczema Diseases 0.000 description 1
- 239000003519 biomedical and dental material Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 229920006217 cellulose acetate butyrate Polymers 0.000 description 1
- 238000003508 chemical denaturation Methods 0.000 description 1
- KRVSOGSZCMJSLX-UHFFFAOYSA-L chromic acid Substances O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 description 1
- 229960002424 collagenase Drugs 0.000 description 1
- 239000013065 commercial product Substances 0.000 description 1
- 210000002808 connective tissue Anatomy 0.000 description 1
- 210000003683 corneal stroma Anatomy 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000036425 denaturation Effects 0.000 description 1
- 238000000502 dialysis Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000012377 drug delivery Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 description 1
- AWJWCTOOIBYHON-UHFFFAOYSA-N furo[3,4-b]pyrazine-5,7-dione Chemical compound C1=CN=C2C(=O)OC(=O)C2=N1 AWJWCTOOIBYHON-UHFFFAOYSA-N 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000001900 immune effect Effects 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 230000002779 inactivation Effects 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000001766 physiological effect Effects 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 229940024999 proteolytic enzymes for treatment of wounds and ulcers Drugs 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000012588 trypsin Substances 0.000 description 1
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
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
- G02B1/041—Lenses
- G02B1/043—Contact lenses
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- General Health & Medical Sciences (AREA)
- Eyeglasses (AREA)
- Materials For Medical Uses (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US75355676A | 1976-12-22 | 1976-12-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1568136A true GB1568136A (en) | 1980-05-29 |
Family
ID=25031149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5269177A Expired GB1568136A (en) | 1976-12-22 | 1977-12-19 | Soft contact lens |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS5378854A (enrdf_load_stackoverflow) |
| CA (1) | CA1095445A (enrdf_load_stackoverflow) |
| DE (1) | DE2757084C2 (enrdf_load_stackoverflow) |
| FR (1) | FR2375616A1 (enrdf_load_stackoverflow) |
| GB (1) | GB1568136A (enrdf_load_stackoverflow) |
| HK (1) | HK14681A (enrdf_load_stackoverflow) |
| MY (1) | MY8400343A (enrdf_load_stackoverflow) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4650616A (en) * | 1984-06-04 | 1987-03-17 | Essilor International | Process for making a soft contact lens of natural proteinaceous polymer(s) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0011523B1 (fr) * | 1978-10-18 | 1982-07-14 | ESSILOR INTERNATIONAL Compagnie Générale d'Optique | Hydrogels de polymères protéiques naturels, leur préparation et lentilles de contact souples à partir de ceux-ci |
| US4268131A (en) * | 1979-04-11 | 1981-05-19 | Opticol Corporation | Fiber collagen contact lens |
| US4273734A (en) * | 1979-09-24 | 1981-06-16 | Maurice Seiderman | Casting of polyelectrolytes in hydrogel molds |
| JPH02103691U (enrdf_load_stackoverflow) * | 1989-02-06 | 1990-08-17 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4939174A (enrdf_load_stackoverflow) * | 1972-08-19 | 1974-04-12 | ||
| FR2251426A1 (en) * | 1973-11-19 | 1975-06-13 | Frigitronics Of Conn Inc | Soft contact lens prepn - from water absorptive polyurethane polymer |
| AR207867A1 (es) * | 1974-07-04 | 1976-11-08 | Smith & Nephew Res | Un copolimero hidrogel ligeramente entrelazado |
-
1977
- 1977-08-31 JP JP10572077A patent/JPS5378854A/ja active Granted
- 1977-12-19 CA CA293,326A patent/CA1095445A/en not_active Expired
- 1977-12-19 GB GB5269177A patent/GB1568136A/en not_active Expired
- 1977-12-21 FR FR7738695A patent/FR2375616A1/fr active Granted
- 1977-12-21 DE DE19772757084 patent/DE2757084C2/de not_active Expired
-
1981
- 1981-04-16 HK HK14681A patent/HK14681A/xx unknown
-
1984
- 1984-12-30 MY MY8400343A patent/MY8400343A/xx unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4650616A (en) * | 1984-06-04 | 1987-03-17 | Essilor International | Process for making a soft contact lens of natural proteinaceous polymer(s) |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2375616B1 (enrdf_load_stackoverflow) | 1981-12-04 |
| JPS5378854A (en) | 1978-07-12 |
| HK14681A (en) | 1981-04-24 |
| MY8400343A (en) | 1984-12-31 |
| DE2757084C2 (de) | 1986-09-04 |
| JPS555089B2 (enrdf_load_stackoverflow) | 1980-02-04 |
| CA1095445A (en) | 1981-02-10 |
| DE2757084A1 (de) | 1978-07-06 |
| FR2375616A1 (fr) | 1978-07-21 |
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| KR840002487B1 (ko) | 콜라겐 콘택트렌즈 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |