Adaptive infrared retinoscopic device for detecting ocular aberrations
US8919960B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Apr 19, 2010 |
| Grant date | Dec 30, 2014 |
| Priority date | — |
| Expiry date | Jul 4, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30041
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An ocular system for detecting ocular abnormalities and conditions creates photorefractive digital images of a patient's retinal reflex. The system includes a computer control system, a two-dimensional array of infrared irradiation sources and a digital infrared image sensor. The amount of light provided by the array of irradiation sources is adjusted by the computer so that ocular signals from the image sensor are within a targeted range. Enhanced, adaptive, photorefraction is used to observe and measure the optical effects of Keratoconus. Multiple near-infrared (NIR) sources are preferably used with the photorefractive configuration to quantitatively characterize the aberrations of the eye. The infrared light is invisible to a patient and makes the procedure more comfortable than current ocular examinations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.