Corneal onlay lens
US4810082A · kind A · utility
48Cited by
7References
11Claims
0Family size
Inventor
Key dates
| Filing date | Jul 1, 1987 |
| Grant date | Mar 7, 1989 |
| Priority date | — |
| Expiry date | Jul 1, 2007 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2220/0008
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A device for correcting refractive errors in the eye comprising a synthetic corneal onlay lens. The lens has an annular projection received in an annular recess in the corneal outer surface and a mechanism for connecting the lens to the cornea. This mechanism comprises sutures received in throughbores in the lens and passing into the cornea, adhesive directly connecting the annular projection and the recess, or both. The annular projection and the recess can have conforming scalloped surfaces to increase the engaging surface areas, thereby reducing the chances of relative rotation and increasing the adhesion therebetween.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.