Hydration and topography tissue measurements for laser sculpting
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United States of America Patent
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Jul 15, 2003
Grant Date -
N/A
app pub date -
Jul 27, 2000
filing date -
Jul 28, 1999
priority date (Note) -
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Abstract
Improved systems, devices, and methods measure and/or change the shape of a tissue surface, particularly for use in laser eye surgery. Fluorescence of the tissue may occur at and immediately underlying the tissue surface. The excitation energy can be readily absorbed by the tissue within a small tissue depth, and may be provided from the same source used for photodecomposition of the tissue. Changes in the fluorescence spectrum of a tissue correlate with changes in the tissue's hydration.
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