Method of making artificial intraocular lenses with holes
US4028082A · kind A · utility
6Cited by
7References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 10, 1976 |
| Grant date | Jun 7, 1977 |
| Priority date | — |
| Expiry date | Feb 10, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03B23/207
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Making perforate optical sections (lenses) of pseudophakoi with avoidance of drilling operations and adversities thereof. Lens material is drawn with embedded acid soluble columns corresponding in diametral size and relative juxtaposition to the size and spaced locations of holes needed in a lens and the columns are etched away prior to or following final edging and surface finishing of the lens. Making multiple lens preforms is contemplated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.