Patent ID: 8529558
Filing Date: 2013-09-10
Classification: A61F

Abstract:
1. A method for treating optical aberrations of an eye having a cornea, the method comprising: providing a first plurality of wavefront Zernike coefficients defining a defect-correcting prescription for the eye; segmenting the first plurality of coefficients into at least a first subset and a second subset, the second subset comprising a high-order coefficient associated with a locally complex desired change in refractive configuration of the eye; determining a first ablation profile corresponding to the first subset; determining a second ablation profile corresponding to the second subset; determining a sequence of laser-energy ablations of the cornea, wherein the sequence comprises applying ablations corresponding to the first ablation profile prior to applying ablations corresponding to the second ablation profile; and reshaping the cornea by directing the determined sequence of laser energy toward the cornea so as to impose the defect-correcting prescription and so that the locally complex desired change in refractive configuration is imposed after, and is not smoothed by, the first ablation profile.