Wettable, flexible, oxygen permeable, substantially non-swellable contact lens containing polyoxyalkylene backbone units, and use thereof
US5039769A · kind A · utility
25Cited by
5References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 11, 1989 |
| Grant date | Aug 13, 1991 |
| Priority date | — |
| Expiry date | Oct 11, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G18/671
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Contact lenses which are optically clear, wettable, flexible, of high oxygen permeability and substantially non-swellable in the aqueous ocular environment of use, of a polymer containing polyoxyalkylene backbone units are disclosed, as well as the preparation thereof and methods of treating vision defects therewith.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.