Corneal-ablation-data calculation apparatus and corneal surgery apparatus

摘要

A corneal-ablation-data calculation apparatus and a corneal surgery apparatus which enable presbyopic correction with which a post-operative condition of visibility becomes favorable. An apparatus for calculating data on corneal ablation for corneal surgery for correcting a refractive error by ablating corneal tissue with a laser beam includes a first input device for inputting a pre-operative corneal shape, a second input device for inputting a correction amount for far vision and additional power for near vision, a setting device for setting a far vision area in a central part of a cornea and an annular near vision area outside the far vision area, and a calculation device for obtaining the data on the corneal ablation based on the inputted pre-operative corneal shape, the inputted correction amount for far vision and the inputted additional power for near vision, and the set far vision area and the set near vision area.