Patent ID: 6149643
Filing Date: 2000-11-21
Classification: A61F

Abstract:
In a medical treatment apparatus capable of simultaneously projecting against an eye a plurality of electromagnetic radiation spots spaced around a circumference of a circle, wherein the diameter of the circle and rotatable position of the spots therearound are controllable, a method of treating a patient eye, comprising:storing, within a memory of the apparatus, at least first and second sets of parameters of exposures of the patient eye for respective at least first and second radiation spot patterns to provide a desired correction of the patient eye, the exposure parameters including radiation energy level, circle diameter, rotatable position of the spots and relative attenuation of the individual spots,causing the apparatus to make adjustments according to the stored parameters of exposure to the first radiation spot pattern,thereafter projecting the first radiation spot pattern against the given patient eye from the apparatus adjusted to the first set of parameters of exposure,thereafter causing the apparatus to make adjustments according to the stored parameters of exposure to the second radiation spot pattern, andthereafter projecting the second radiation spot pattern against the given patient eye from the apparatus adjusted to the second set of parameters of exposure.