Optical assembly permanently attached to the cornea
US4646720A · kind A · utility
107Cited by
3References
19Claims
0Family size
Inventors
Key dates
| Filing date | Mar 12, 1985 |
| Grant date | Mar 3, 1987 |
| Priority date | — |
| Expiry date | Mar 12, 2005 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2/15
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A device and method for permanently correcting refractive errors in the eye. An optical element, such as a lens, having at least one opening therein for the diffusion of nutrients from a recipient's cornea, is positioned on the recipient's cornea and held in place by an optical covering, such as a donor cornea. The covering covers the optical element, and is attached to the recipient's cornea by means of, for example, sutures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.