Methods of surface treatment for enhancing the performance of a floating phakic refractive lens design
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United States of America Patent
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Oct 28, 2003
Grant Date -
Nov 15, 2001
app pub date -
Dec 15, 2000
filing date -
Dec 29, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of preparing phakic intraocular lenses from hydrophobic materials is described. In this process, the lens is tested to determine whether it can float submerged in an aqueous medium. If it cannot (e.g., if it remains on top of the aqueous medium), the lens is surface treated (for example, by vacuum UV or corona discharge processes) to increase its wetting ability (e.g., to reduce its hydrophobicity). The lenses prepared by this process are also described.
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