Ophthalmic examination system interface device
US8419184B1 · kind B1 · utility
6Cited by
8References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 9, 2009 |
| Grant date | Apr 16, 2013 |
| Priority date | — |
| Expiry date | Jun 9, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B3/103
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An automated ophthalmic system is disclosed that is utilized to examine the eyes of a subject. A refraction system measures a refractive error of each eye and identifies a lens to correct the refractive error detected. A display presents one or more of an optotype, a chart, a test and a function to the subject to ascertain the refractive error. An interface device receives a voltage signal from the refraction system, converts the voltage signal into one or more ASCII characters, and communicates the one or more ASCII characters to the display to present the one or more of an optotype, a chart, a test and a function.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.