Glare assembly for computerized eye test display
US8992022B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 7, 2013 |
| Grant date | Mar 31, 2015 |
| Priority date | — |
| Expiry date | Oct 7, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B3/06
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A monitor is used to display a visual acuity test operated by software from an associated computer. A patient is spaced a predetermined distance from the monitor during the testing procedure, and individual, multiple LED housings are equally spaced about a center point of the monitor 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 acuity testing under glare conditions determines if there is any reduction or fall off in the patient's acuity vision under such circumstances and provides an indication of whether the patient may require cataract surgery or has another ocular problem.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.