Method for accurate optical treatment of an eye's fundus
US6942656B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 30, 2002 |
| Grant date | Sep 13, 2005 |
| Priority date | — |
| Expiry date | Mar 3, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2009/00863
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A system and method is provided to accurately treat sites on an eye's retina employing computer based image generation, processing and central control means in conjunction with diode laser sources and optical fibers. The system and method accurately determine geometry of a treatment zone of a specific eye's fundus and adjust a treatment beam to irradiate the treatment zone with minimal coverage of adjacent well tissue. The treatment zone or zone is accurately determined with digital processing of angiographic data and slit lamp image data. This information is integrated with information on the treatment beam characteristics to better match treatment beam coverage with minimal overlap with healthy areas of the fundus. Additionally preferred embodiments also have the ability to automatically track eye movement and switch the beam source depending on eye movement, adjusting the beam spot area in real time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.