Surgery – Instruments – Light application
Reexamination Certificate
2011-04-05
2011-04-05
Shay, David (Department: 3769)
Surgery
Instruments
Light application
C606S005000
Reexamination Certificate
active
07918846
ABSTRACT:
An ophthalmological surgery system and method for performing ablative photodecomposition of the corneal surface by offset image scanning. The image of a variable aperture, such as a variable width slit and variable diameter iris diaphragm, is scanned in a preselected pattern to perform ablative sculpting of predetermined portions of a corneal surface. The scanning is performed with a movable image offset displacement mechanism capable of effecting radial displacement and angular rotation of the profiled beam exiting from the variable aperture. The profiled beam is rotated by rotating the aperture in conjunction with the offset displacement mechanism. The invention enables wide area treatment with a laser having a narrower beam, and can be used in the treatment of many different conditions, such as hyperopia, hyperopic astigmatism, irregular refractive aberrations, post ablation smoothing and phototherapeutic keratectomy.
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Glocker Herrmann J.
Munnerlyn Charles R.
Shimmick John K.
Telfair William B.
AMO Manufacturing USA LLC
Shay David
Townsend and Townsend / and Crew LLP
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