Glare assembly for eye test display
US9820644B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 15, 2016 |
| Grant date | Nov 21, 2017 |
| Priority date | — |
| Expiry date | Aug 15, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B3/063
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A monitor/display is used to display a vision test. A patient is spaced a predetermined distance from the monitor/display during the testing procedure, and individual, multiple LED housings are equally spaced about a center point of the monitor/display to direct light toward the patient during at least a portion of the test procedure. The light emanating from the individual housings is a diffuse, unfocused light to simulate glare, and the intensity of the light may be selectively altered. Conducting vision testing under glare conditions determines if there is any reduction or fall off in the patient's vision under such circumstances and provides an Indication of whether the patient may require cataract surgery or has another ocular problem. An assembly allows an existing vision testing system to be easily modified to provide glare light testing capabilities.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.