Method for photo-altering a biological system to improve biological effect
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United States of America Patent
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Aug 1, 2000
Grant Date -
N/A
app pub date -
Dec 1, 1994
filing date -
Dec 1, 1994
priority date (Note) -
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Abstract
Photodynamic therapy is a new adjunctive therapy for filtration surgery that does not use chemotherapy agents or radiation, but uses pharmacologically-active sensitizing compounds to produce a titratable, localized, transient, post operative avascular conjunctiva. A photosensitizing agent in a biological system is selectively activated by delivering the photosensitive agent to the biological system and laser activating only a spatially selected portion of the delivered photosensitive agent. The activated portion of the photosensitive agent reacts with the biological system to obtain a predetermined biological effect. As a result, an improved spatial disposition and effectuation of the biological effect by the photosensitive agent in the biological system is achieved.
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