| 摘要 |
PROBLEM TO BE SOLVED: To provide a cornea operation device capable of performing an operation properly by improving correcting precision by the removal of a cornea. SOLUTION: The cornea operation device for removing the cornea by laser beams is provided with an arithmetic means for calculating the removing quantity of the cornea based on the ametropia of an eye to be examined and dividing the removing quantity into the steps of plural times for obtaining the removing quantities at the respective steps, a controlling data deciding means for deciding the controlling data of the device at the respective steps based on the respective removing quantity, a cornea shape measuring means having an image forming optical system for forming an index for measuring the shape of the cornea on the cornea, an image pickup optical system for picking up the index image formed on the cornea and a shape arithmetic means for processing the picked-up image to detect the index image to obtain the shape of the cornea, and a correction means which compares an actually removing quantity at the step with a planed removing schedule based on the shape of the cornea measured after finishing irradiation with laser at a step by using the cornea shape measuring means and correcting controlling data at the next step based on the comparison. |
