| 摘要 |
PROBLEM TO BE SOLVED: To accurately measure the refractivity distribution in the pupil. SOLUTION: A spot target is reflected on the eyeground of an eye E to be examined by an optical system of which the eyeground magnification is constant even if the alignment of visibility is performed by a focus lens 8 to be received by an area array sensor 23 through a Flesnel lens 19 conjugated with the cornea. At this time, the focus lenses 8 and 21 of a projection optical system and a light detection optical system are allowed to cooperate with each other to perform measurement.
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