Patent ID: 7278989
Filing Date: 2007-10-09
Classification: A61F

Abstract:
1. A method for performing at least one of an analysis on a state of a surface ablated by a corneal surgery apparatus which ablates a cornea by irradiating a laser beam, an analysis on inconsistency in the laser beam, and calibration on irradiation data of the laser beam, the method comprising: a step of preparing a reference object for evaluation having a first curved surface shape being approximate to a curved surface shape of the cornea; an ablation step of setting irradiation conditions of the laser beam of the corneal surgery apparatus so that the first curved surface shape is changed into a second curved surface shape, and irradiating the laser beam onto the reference object by the corneal surgery apparatus under the set irradiation conditions to ablate the reference object; a measurement step of measuring a third curved surface shape, which has actually been formed on the reference object by the ablation, by a corneal shape measurement optical unit; and an analysis step of analyzing that the third curved surface shape has been formed in an attempt to change the first curved surface shape into the second curved surface shape, and performing at least one of the analysis on the state of the ablated surface, the analysis on the inconsistency in the laser beam, and the calibration on the irradiation data of the laser beam.