Method and device for detecting/correcting color vision and their application
US7198369B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 26, 2001 |
| Grant date | Apr 3, 2007 |
| Priority date | — |
| Expiry date | Jun 28, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B3/066
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
This invention discloses an achromatopsia inspection/correction method, comprising the following steps: displaying a plurality of groups of achromatopsia test charts for the examinee to identify, each group is corresponding to one type of achromatopsia; determining the types of achromatopsia based upon the inspection results; displaying at least one colored color-matching contrast chart, one area of said color-matching chart is in a predetermined color, another area is for the examinee to match colors; taking the color-matching result from the examinee; determining the achromatopsia scales of the examinee by comparing the color-matching results of the examinee with said predetermined three elementary colors; selecting the corresponding achromatopsia correction spectrum curves according to the determined types and scales of achromatopsia. Besides, this invention also discloses an achromatopsia inspection/correction apparatus for realizing this method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.