Method of implanting corneal inlay lenses smaller than the optic zone
US5196026A · kind A · utility
119Cited by
6References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 16, 1991 |
| Grant date | Mar 23, 1993 |
| Priority date | — |
| Expiry date | Sep 16, 2011 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2250/0053
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A low or high refractive index corneal inlay optical lens adapted to be inserted between the layers of a cornea to correct refractive errors in eyesight, wherein the implanted lens is of a size or configuration that permits unimpeded passage of nutrients and gases throughout the corneal layers and wherein the composition of the lens relative to that of the surrounding stromal tissue is such that multi-refractive indices may be created and multi-focal corrections are possible.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.