Method and systems for laser treatment of presbyopia using offset imaging
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United States of America Patent
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Dec 16, 2003
Grant Date -
Dec 20, 2001
app pub date -
Jul 9, 2001
filing date -
Mar 4, 1998
priority date (Note) -
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Abstract
An ophthalmic surgery system and method for treating presbyopia by performing ablative photodecomposition of the corneal surface. A laser system ablates tissue to a predetermined ablation shape, and the cornea heals significantly to form a multifocal shape correcting presbyopia. The multifocal shape corrects for near-vision centrally and far-vision peripherally. The system and method enables wide area treatment with a laser having a narrower beam than the treatment area, and can be used in the treatment of many conditions in conjunction with presbyopia such as hyperopia, hyperopic astigmatism and irregular refractive aberrations.
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