Ophthalmic apparatus
US8857987B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 1, 2011 |
| Grant date | Oct 14, 2014 |
| Priority date | — |
| Expiry date | Nov 26, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B3/0091
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An ophthalmic apparatus comprising: a fundus observation optical system; a designating part for designating an area of the fundus other than a macular area from a fundus image displayed on a monitor to make alignment of the fundus area of the fundus image displayed on the monitor with the fixation target displayed on a LCD display; a judging part for detecting an approaching state of the fixation target projected on the fundus and the designated fundus area based on positional information of the fundus area designated by the designating part on the monitor after movement and positional information of the fixation target displayed on the LCD display, and judging based on a detection result, whether or not the designated fundus area and the fixation target projected on the fundus are coincident in a predetermined allowable range; and a display control part for changing the display state of the fixation target based on a judgment result of the judging part.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.