Patent ID: 9706919
Date: 2017-07-18
CPC Classifications: A61B

Claim:
1. An ophthalmologic apparatus comprising: a photographing optical system configured to photograph a fundus of a subject's eye via a focusing lens; a projection unit configured to project a plurality of focusing indices corresponding to an opening of a mask portion; a detecting unit configured to detect if there is one or a plurality of focusing index images in a fundus image of the subject's eye; and a driving unit configured to drive the focusing lens along an optical path using information about positions of the plurality of focusing index images corresponding to the opening of the mask portion when the plurality of focusing index images is detected in the fundus image; and to drive the focusing lens along the optical path using information about both a position of an image corresponding to the mask portion different from the opening of the mask portion and a position of a focusing index image corresponding to the opening of the mask portion when one focusing index image of the plurality of focusing index images is detected in the fundus image.