发明名称 |
Laser eye surgery system using wavefront sensor analysis to control digital micromirror device (DMD) mirror patterns |
摘要 |
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.
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申请公布号 |
US6394999(B1) |
申请公布日期 |
2002.05.28 |
申请号 |
US20000524312 |
申请日期 |
2000.03.13 |
申请人 |
MEMPHIS EYE & CATARACT ASSOCIATES AMBULATORY SURGERY CENTER |
发明人 |
WILLIAMS ROY E.;FREEMAN JAMES F.;FREEMAN JERRE M. |
分类号 |
A61B3/10;A61B3/113;A61B18/20;A61F9/007;A61F9/01;(IPC1-7):A61B18/18 |
主分类号 |
A61B3/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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