Collagen modulators for use in photoablation excimer laser keratectomy
US5492135A · kind A · utility
Inventors
Key dates
| Filing date | Sep 9, 1992 |
| Grant date | Feb 20, 1996 |
| Priority date | — |
| Expiry date | Sep 9, 2012 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2009/00872
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method of smoothing irregular corneal surfaces and removing protuberances from corneal surfaces by photoablative excimer laser keratectomy is provided. Collagen compositions for use in making collagen modulators useful in photoablative procedures are described. These compositions are applied to irregular corneal surfaces in sufficient amounts to at least fill in depressions or other irregularities on a corneal surface and are converted into a modulator, as a gel or polymerized film, prior to photoablation. The collagen modulators facilitate the photoablative smoothing of irregular corneal surfaces and protect adjacent corneal tissue from undesired photoablation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.