Patent ID: 9615734
Date: 2017-04-11
CPC Classifications: A61B

Claim:
1. An ophthalmologic apparatus comprising: a photographing part that photographs an eye from two or more different directions; an optical system that splits light from a light source into measurement light and reference light and detects interference light of returned light of the measurement light from the eye and the reference light; a changing part that changes optical path length of the measurement light and/or the reference light; a controller that controls the photographing part to perform photography and the optical system to perform first detection when first optical path length is set by the changing part and controls the optical system to perform second detection when second optical path length is set and a second image that is substantially the same as a first image acquired by the photography is acquired by the photographing part; and a calculator that calculates distance between a first site of the eye through which the measurement light has passed in the first detection and a second site of the eye through which the measurement light has passed in the second detection based on the first and second optical path lengths.