초록 ▼

A system and method for performing corneal ablation or reshaping with a laser in order to correct aberrations in the optical system of the eye utilizes a wavefront sensor which defines a wavefront correction for the eye and then, based upon that defined wavefront correction, drives a digital micromi

A system and method for performing corneal ablation or reshaping with a laser in order to correct aberrations in the optical system of the eye utilizes a wavefront sensor which defines a wavefront correction for the eye and then, based upon that defined wavefront correction, drives a digital micromirror device (DMD) which modulates a laser beam to the eye to perform the correction. As the DMD is a 2-D array of individually controlled mirrors, and the wavefront sensor analysis can provide a sequence of two dimensional arrays of values which together define the wavefront correction for the eye, the combination of the two produces a method for correcting the corneal surface. The system may be operated in either of two manners to achieve optimum refractive corrections: (1) off-line measurement of the eye optical system via the wavefront sensor followed by DMD-based laser refractive surgery, or (2) real-time measurement of the eye optical system via the wavefront sensor which directs a DMD-based laser refractive surgery system.

대표청구항 ▼

1. A laser surgery system for reshaping the corneal surface of the eye, said system comprising: a) a computer system adapted to define a three-dimensional correction for the eye based on wavefront sensor analysis data of the eye; b) means for creating a sequence of two-dimensional patterns from sai

1. A laser surgery system for reshaping the corneal surface of the eye, said system comprising: a) a computer system adapted to define a three-dimensional correction for the eye based on wavefront sensor analysis data of the eye; b) means for creating a sequence of two-dimensional patterns from said three dimensional correction; c) a laser coupled to said computer system and adapted to reshape a portion of a cornea of the eye; and d) a digital micromirror device (DMD) having a plurality of mirrors, said mirrors of said DMD being driven into said sequence of two dimensional patterns such that a laser beam produced by said laser is modulated to reshape the cornea of the eye according to said correction.