Device and method for optical imaging of retinal function
US7118217B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jan 17, 2003 |
| Grant date | Oct 10, 2006 |
| Priority date | — |
| Expiry date | May 21, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/14555
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An Optical Imaging Device of Retinal Function has been developed to detect changes in reflectance of near infrared light from the retina of human subjects in response to visual activation of the retina by a pattern stimulus. The measured changes in reflectance correspond in time to the onset and offset of the visual stimulus in the portion of the retina being stimulated. Any changes in reflectance can be measured by interrogating the retina with a light source. The light source may be presented to the retina via the cornea and pupil or through other tissues in and around the eye. Different wavelengths of interrogating light may be used to interrogate various layers of the retina. Additionally, various novel patterns and methods of stimulation have been developed for use with the imaging device and methods.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.