Patent ID: 6733129
Filing Date: 2004-05-11
Classification: A61B

Abstract:
An ophthalmologic apparatus comprising:(1) a movable measurement unit which includes a measurement optical system for measuring an eye to be examined; (2) a first light source which irradiates the eye with first light from a direction different from that of an optical axis of said measurement optical system; (3) a second light source which irradiates the eye with second light from an optical axis direction of said measurement optical system; (4) image pickup means for obtaining image information of the eye; (5) first detection means for detecting a positional relationship between said measurement unit and the eye on the basis of information of the first reflected cornea image formed by said first light source on the basis of image information from said image pickup means; and (6) second detection means for detecting a positional relationship between said measurement unit and the eye on the basis of information of the second reflected cornea image formed by said second light source on the basis of image information from said image pickup means, wherein said measurement unit is driven to be aligned with the eye on the basis of a detection result formed by said first detection means when said second detection means does not detect the positional relationship between said measurement unit and the eye.