JPS6458253A - Intraocular lens - Google Patents
Intraocular lensInfo
- Publication number
- JPS6458253A JPS6458253A JP21713787A JP21713787A JPS6458253A JP S6458253 A JPS6458253 A JP S6458253A JP 21713787 A JP21713787 A JP 21713787A JP 21713787 A JP21713787 A JP 21713787A JP S6458253 A JPS6458253 A JP S6458253A
- Authority
- JP
- Japan
- Prior art keywords
- optical
- heat
- contractible
- extensible
- changing
- 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
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/14—Eye parts, e.g. lenses, corneal implants; Implanting instruments specially adapted therefor; Artificial eyes
- A61F2/16—Intraocular lenses
- A61F2/1613—Intraocular lenses having special lens configurations, e.g. multipart lenses; having particular optical properties, e.g. pseudo-accommodative lenses, lenses having aberration corrections, diffractive lenses, lenses for variably absorbing electromagnetic radiation, lenses having variable focus
Landscapes
- Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
Abstract
PURPOSE:To obtain an intraocular lens capable of changing lens refractive power by changing the surface shape of an optical part by substantially changing a band length, by providing a clamp member to the outer peripheral part of the optical part and arranging a member extensible and contractible by heating to at least a part of the clamp member. CONSTITUTION:Two support loops 2 extending to the periphery are provided to an optical part 1 formed of an elastic optical material and a clamp band 3 is provided to the outer peripheral part of the optical part 1 and a part 4 extensible and contractible by heat is provided to a part of the clamp band 3. A spring member 5 is sealed in the heat extensible and contractible part 4 and, when this part 4 is heated by laser beam, said part extends and contracts by the repulsion of the spring member 5. This heat-deformable part 4 is pref. formed from a material having good heat absorbability from the aspect of efficiency. By this method, the radius of curvature of a lens surface can be changed and the error of the refractive power of an intraocular lens or a refraction error including cornea astigmatism finely changed by operation can be corrected.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21713787A JPS6458253A (en) | 1987-08-31 | 1987-08-31 | Intraocular lens |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21713787A JPS6458253A (en) | 1987-08-31 | 1987-08-31 | Intraocular lens |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6458253A true JPS6458253A (en) | 1989-03-06 |
Family
ID=16699433
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP21713787A Pending JPS6458253A (en) | 1987-08-31 | 1987-08-31 | Intraocular lens |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6458253A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02189146A (en) * | 1988-10-21 | 1990-07-25 | Genjiro Omi | Contact lens |
JPH0441619A (en) * | 1990-06-07 | 1992-02-12 | Nippon Steel Corp | Production of resistance welded tube excellent in toughness at low temperature |
-
1987
- 1987-08-31 JP JP21713787A patent/JPS6458253A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02189146A (en) * | 1988-10-21 | 1990-07-25 | Genjiro Omi | Contact lens |
JPH0441619A (en) * | 1990-06-07 | 1992-02-12 | Nippon Steel Corp | Production of resistance welded tube excellent in toughness at low temperature |
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