JPS6251446B2 - - Google Patents
Info
- Publication number
- JPS6251446B2 JPS6251446B2 JP55175252A JP17525280A JPS6251446B2 JP S6251446 B2 JPS6251446 B2 JP S6251446B2 JP 55175252 A JP55175252 A JP 55175252A JP 17525280 A JP17525280 A JP 17525280A JP S6251446 B2 JPS6251446 B2 JP S6251446B2
- Authority
- JP
- Japan
- Prior art keywords
- contact lenses
- pullulan
- contact lens
- pmma
- dextran
- 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
- 229920001218 Pullulan Polymers 0.000 claims description 34
- 239000004373 Pullulan Substances 0.000 claims description 34
- 235000019423 pullulan Nutrition 0.000 claims description 34
- 238000006467 substitution reaction Methods 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 26
- 239000000463 material Substances 0.000 description 23
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 21
- 239000004926 polymethyl methacrylate Substances 0.000 description 21
- 238000010521 absorption reaction Methods 0.000 description 18
- 229920002307 Dextran Polymers 0.000 description 17
- 229920001577 copolymer Polymers 0.000 description 16
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 12
- 229910052760 oxygen Inorganic materials 0.000 description 12
- 239000001301 oxygen Substances 0.000 description 12
- 239000002585 base Substances 0.000 description 11
- 230000035699 permeability Effects 0.000 description 11
- 229920006217 cellulose acetate butyrate Polymers 0.000 description 9
- 210000004087 cornea Anatomy 0.000 description 8
- 238000012937 correction Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 210000002919 epithelial cell Anatomy 0.000 description 4
- 150000004676 glycans Chemical class 0.000 description 4
- 239000010410 layer Substances 0.000 description 4
- 229920001282 polysaccharide Polymers 0.000 description 4
- 239000005017 polysaccharide Substances 0.000 description 4
- 238000011160 research Methods 0.000 description 4
- WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- 229920002472 Starch Polymers 0.000 description 3
- 238000009835 boiling Methods 0.000 description 3
- 238000004132 cross linking Methods 0.000 description 3
- 230000006196 deacetylation Effects 0.000 description 3
- 238000003381 deacetylation reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000004014 plasticizer Substances 0.000 description 3
- 239000008107 starch Substances 0.000 description 3
- 235000019698 starch Nutrition 0.000 description 3
- 238000011282 treatment Methods 0.000 description 3
- WOBHKFSMXKNTIM-UHFFFAOYSA-N Hydroxyethyl methacrylate Chemical compound CC(=C)C(=O)OCCO WOBHKFSMXKNTIM-UHFFFAOYSA-N 0.000 description 2
- 230000021736 acetylation Effects 0.000 description 2
- 238000006640 acetylation reaction Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 230000001954 sterilising effect Effects 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 125000002777 acetyl group Chemical group [H]C([H])([H])C(*)=O 0.000 description 1
- 230000000397 acetylating effect Effects 0.000 description 1
- 230000001476 alcoholic effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- -1 methacrylate ester Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 238000009736 wetting Methods 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
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)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17525280A JPS5799612A (en) | 1980-12-13 | 1980-12-13 | Contact lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17525280A JPS5799612A (en) | 1980-12-13 | 1980-12-13 | Contact lens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5799612A JPS5799612A (en) | 1982-06-21 |
| JPS6251446B2 true JPS6251446B2 (ru) | 1987-10-30 |
Family
ID=15992910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17525280A Granted JPS5799612A (en) | 1980-12-13 | 1980-12-13 | Contact lens |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5799612A (ru) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0486951U (ru) * | 1990-11-30 | 1992-07-28 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51149883A (en) * | 1975-06-19 | 1976-12-23 | Sumitomo Chem Co Ltd | Hydrophilic gel |
-
1980
- 1980-12-13 JP JP17525280A patent/JPS5799612A/ja active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51149883A (en) * | 1975-06-19 | 1976-12-23 | Sumitomo Chem Co Ltd | Hydrophilic gel |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0486951U (ru) * | 1990-11-30 | 1992-07-28 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5799612A (en) | 1982-06-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3776230A (en) | Method of rapidly reshaping the cornea to eliminate refractive errors | |
| US4143017A (en) | Process of producing soft contact lenses | |
| US8298595B2 (en) | Contact lens, method for producing same, and pack for storage and maintenance of a contact lens | |
| JP5568096B2 (ja) | 湿潤性の向上したハイドロゲルコンタクトレンズ | |
| US4650843A (en) | Soft contact lens | |
| JP3390999B2 (ja) | 抗毒素剤が備わつている眼用レンズ | |
| HUT72406A (en) | Material to be worn on the eyeball | |
| JPS6323126A (ja) | ソフトコンタクトレンズおよびその製造法 | |
| US4532267A (en) | Vision correction lens made from an aminopolysaccharide compound or an ether or ester thereof | |
| JPS5977411A (ja) | 酸素透過性ハ−ドコンタクトレンズ | |
| US4616045A (en) | Process of preparing an oxygen permeable, styrene based, contact lens material | |
| US4528301A (en) | Oxygen permeable, styrene based, contact lens material | |
| US3900250A (en) | Semi-rigid, gas permeable contact lenses | |
| JPS6251446B2 (ru) | ||
| JPH0445810B2 (ru) | ||
| US4193897A (en) | Contact lenses formed of mixtures of cellulose esters and ethylene/vinyl acetate copolymers | |
| EP0100381B1 (en) | Soft contact lens | |
| AU635554B2 (en) | Non-irritating soft gas permeable contact lens and process for producing same | |
| KR101994668B1 (ko) | 습윤성 하이드로겔 콘택트렌즈 | |
| JPS6251447B2 (ru) | ||
| JPH1152304A (ja) | ソフトコンタクトレンズ | |
| JP2000214417A (ja) | コンタクトレンズ | |
| TWI806607B (zh) | 具有抗摩擦性與高保濕性之隱形眼鏡及其製造方法 | |
| JPH04104220A (ja) | コンタクトレンズの親水化方法 | |
| JP2926789B2 (ja) | ソフトコンタクトレンズ |