CORNEAL SHAPE MEASURING APPARATUS

PROBLEM TO BE SOLVED: To provide a corneal shape measuring apparatus which enables an examinant to grasp the positional relationship between a distribution of corneal reflective power and the position of the eye to be examined by displaying overlapping images obtained when an image of the anterior eye overlaps with an image of the distribution of corneal refractive power. SOLUTION: Data about images of the anterior eye including data about images of ring patterns, obtained by an optical measuring unit 100, are stored in an image memory 9. An arithmetic control circuit 10 computes a distribution of corneal reflective power on the basis of the data about images of ring patterns, and corneal refractive power distribution data showing the distribution of corneal refractive power are stored in a refractive power distribution data memory 11. Based on mask pattern data stored in a mask pattern memory 12, the corneal refractive power distribution data are subjected to thinning process and image processing is performed such that an image of the anterior eye is seen semitransparent. Data about overlapping images that overlap with images of the anterior eye are stored in an image memory 13 and displayed on a display unit 300.