Wide angle ophthalmic lens
US5007729A · kind A · utility
32Cited by
15References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 27, 1989 |
| Grant date | Apr 16, 1991 |
| Priority date | — |
| Expiry date | Oct 27, 2009 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B3/125
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An ophthalmic lens which has three elements, a contact lens, a center lens, and an entry lens. The lens produces a wide field, aerial image of the fundus of the eye. The lens is particularly useful because it provides high resolution of the peripheral retina, and causes little or no distortion of the laser beam used for peripheral fundus laser treatment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.