Opthalmoscope examination pattern having light transmissive fixation point
US4196980A · kind A · utility
11Cited by
1References
3Claims
0Family size
Assignees
Inventor
Key dates
| Filing date | May 26, 1978 |
| Grant date | Apr 8, 1980 |
| Priority date | — |
| Expiry date | May 26, 1998 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B3/1208
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present application discloses an examination pattern for use in conjunction with ophthalmoscopes which provides a light transmissive opening at the pattern center to act as a reference point in the examination of the eye.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.