Method for controlled corneal ablation
US5133708A · kind A · utility
55Cited by
3References
6Claims
0Family size
Inventor
Key dates
| Filing date | Jun 19, 1989 |
| Grant date | Jul 28, 1992 |
| Priority date | — |
| Expiry date | Jun 19, 2009 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2009/00872
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method for effecting controlled refractive correction of the cornea comprising a contact lens whose concave surface is wetted with an inert ultraviolet absorbent liquid. An excimer laser feeds a cylindrical bundle of quartz fibers terminating angularly in a decollimating matrix at the contact lens in such manner as to attenuate the ultraviolet flux in said liquid proportional to the depth thereof at the cornea so as to effect greatest corneal ablation at the thinnest depth of the liquid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.