Methods and apparatus for presbyopia correction using ultraviolet and infrared lasers
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United States of America Patent
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Issued Date -
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app pub date -
Mar 30, 2001
filing date -
May 3, 1999
priority date (Note) -
Abandoned
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Abstract
Presbyopia is treated by a system using various lasers to remove a portion of the scleral tissue and increase the accommodation of the presbyopic patient's eye. Stable accommodation is achieved by the filling of the sub-conjunctiva tissue to the laser-ablated scleral areas. The proposed laser wavelength ranges from ultraviolet to infrared of (0.15-0.36) microns, (0.5-1.4) microns and (0.9-3.2) microns. Both scanning and fiber delivered systems are proposed to generate the ablation patterns. Laser ablation of the sclera may be conducted with or without opening the conjunctiva layer.
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