| 摘要 |
A corneal-shape measuring apparatus for measuring the shape of a cornea of an eye to be examined includes: a target plate formed of a transparent resin as its material and for projecting targets formed by light-transmitting portions and light-shielding portions onto a wide range of the cornea; a surface emitting plate for illuminating the targets from behind; an imaging optical system for picking up a target image formed on the cornea; a control unit and an image processing unit for analyzing the picked-up target image to determine the corneal shape; and an illuminating light source disposed to allow rays of light to be incident upon an end face of the target plate, wherein the target plate has the targets formed on its front surface facing the cornea, is provided with matte treatment of high reflectivity on a rear surface thereof, and is used jointly with the surface emitting plate.
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