OPTICAL CHARACTERISTIC MEASURING DEVICE AND EYEGROUND IMAGE OBSERVATION DEVICE

摘要

PROBLEM TO BE SOLVED: To provide an optical characteristic measuring device which measures optical characteristics or generates eyeground images by implementing a stable wavefront correction even if a pupil moves, and an eyeground image observation device.

SOLUTION: An anterior ocular segment observation system 4 receives reflected light from an anterior ocular segment of an eye to be examined illuminated by an anterior ocular segment illuminating light source 45. A displacement arithmetic unit 14-2 measures displacement of the eye to be examined from an anterior ocular image based on light receiving signals of the system 4. A wavefront correction element 71 corrects the wavefront of a reflecting or transmitting luminous flux. A wavefront measuring part 10 projects the luminous flux for measuring the wavefront to the eyeground of the eye to be examined and receives the reflected luminous flux from the eyeground of the eye to be examined through the wavefront correction element 71. An arithmetic unit 14-1 measures a wavefront aberration based on the measured displacement of the eye to be examined and the light receiving signals by the wavefront measuring part 10. A wavefront correction element control device 15 generates control signals for the wavefront correction based on the measured wavefront aberration and outputs the signals to the wavefront aberration element 71 to correct the wavefront. A stage 73 with a motor moves the wavefront correction element 71 in a direction to cross an optical axis of the reflected luminous flux from the eye to be examined according to the measured displacement of the eye to be examined.

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