Contact lens for laser surgery
US4966452A · kind A · utility
53Cited by
3References
7Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Apr 27, 1989 |
| Grant date | Oct 30, 1990 |
| Priority date | — |
| Expiry date | Apr 27, 2009 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2009/00891
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A contact lens for use in connection with transscleral cyclophotocoagulation. The lens has a planar entry surface and a frustoconically-shaped exit surface that contacts the sclera surrounding the cornea. The central portion of the lens is opaque to prevent stray laser light from entering the optical portion of the eye during laser application.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.