System and method for diagnosing vision disorders
US5894338A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 25, 1997 |
| Grant date | Apr 13, 1999 |
| Priority date | — |
| Expiry date | Sep 25, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B3/063
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A device and method for comparing and correlating two or more disparate types of test data allows a doctor or technician to easily diagnose a condition or defect. A device or method embodying the invention can be used for diagnosing vision disorders by correlating visual sensitivity or acuity data to images or data corresponding to biological structures responsible for vision. Such a method allows a doctor to easily identify defects or conditions of a biological structure that causes a loss of vision. For instance, perimetry data which is indicative of visual sensitivity may be superimposed onto a fundus image of an eye to create a combined presentation of the data. In the combined presentation, the perimetry data overlies corresponding physical structures shown in the fundus image that give rise to the indicated optical sensitivities. The biological structure data may include an image of an eye, or an image of an optic nerve or a portion a brain responsible for processing optical data. The optical sensitivity data can be in the form of numerals indicative of optical sensitivity, isopter lines, or other types of patterns or symbols indicative of optical sensitivity. In one embodime…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.