Color field test with occlusion of non-tested eye
US5461436A · kind A · utility
12Cited by
4References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 29, 1993 |
| Grant date | Oct 24, 1995 |
| Priority date | — |
| Expiry date | Oct 29, 2013 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B3/024
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
In a color field test where the field background is of a first color--preferably yellow--and the illuminating spot is of a second and different color--preferably blue, a translucent occluder is utilized for the eye. The translucent occluder is chosen to permit entry of light having the color of the background--here yellow--while filtering out substantially all light of the spot color--here blue. There results the ability to conduct a field test in color where retinal rivalry interference with the test is held to a minimum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.