A cornea shape measurement apparatus outputs data useful for prescription as well as injection and installation of a TORIC-IOL. This apparatus includes: a projecting optical system projecting an index for measurement onto a cornea an illuminating optical system illuminating an anterior segment on which a reference mark is placed an imaging optical system capturing an anterior segment image containing the reference mark and an image of the index reflected from the cornea an image processor overlaying an astigmatic axis mark indicating a direction of an astigmatic axis of the cornea, which is calculated based on the index image, on the anterior segment image and a controller displaying the anterior segment image, which contains the astigmatic axis mark, on a display.
