Patent ID: 7918846

Claim:
An ophthalmological surgery system for performing selective ablation of a corneal surface of an eye to effect a desired corneal shape, the system comprising: a laser for directing a laser beam having a beam axis along a path; a variable aperture for profiling the laser beam to produce a variable area profiled beam; an optical scanning element disposed in the beam path for displacing the beam axis over a predetermined area of the corneal surface; a laser treatment table including a listing of coordinate references for the displaced beam, the laser treatment table being sorted to establish a predetermined scanning pattern for the beam; and a computer for controlling the scanning element according to the predetermined scanning pattern wherein the computer controls a dimension across the area profiled beam and the listing includes the dimension, and wherein the computer controls the scanning element per the listing of coordinate references and scans the profiled beam in a series of overlapping circular ablations of varying diameter and varying offset about an intended ablation center.