PHOTOTOXICITY INVOLVING THE OCULAR LENS: in vivo AND in vitro STUDIES

PHOTOTOXICITY INVOLVING THE OCULAR LENS: in vivo AND in vitro STUDIES Abstract— Our laboratory has demonstrated the cataractogenic potential of UV radiation and several photosensitizing drugs in laboratory animals and in humans. We have utilized lens fluorescence measurements (which we have demonstrated to be a reliable marker for pre‐cataractous and early cataractous changes), NMR pulse relaxation techniques, and our recently developed magnetic resonance imaging method to measure lens T2 values in the normal and UV exposed Degus lens (in vivo and in vitro) to detect pre‐cataractous changes in the lens. These approaches will permit us to employ two parameters (increased non‐tryptophan fluorescence and a decrease in T2 values) to monitor for such changes months before the lens opacities become manifest by conventional slit lamp examinations. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Photochemistry & Photobiology Wiley

PHOTOTOXICITY INVOLVING THE OCULAR LENS: in vivo AND in vitro STUDIES

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Abstract

Abstract— Our laboratory has demonstrated the cataractogenic potential of UV radiation and several photosensitizing drugs in laboratory animals and in humans. We have utilized lens fluorescence measurements (which we have demonstrated to be a reliable marker for pre‐cataractous and early cataractous changes), NMR pulse relaxation techniques, and our recently developed magnetic resonance imaging method to measure lens T2 values in the normal and UV exposed Degus lens (in vivo and in vitro) to detect pre‐cataractous changes in the lens. These approaches will permit us to employ two parameters (increased non‐tryptophan fluorescence and a decrease in T2 values) to monitor for such changes months before the lens opacities become manifest by conventional slit lamp examinations.

Journal

Photochemistry & PhotobiologyWiley

Published: Feb 1, 1991

References

  • Modified spin‐echo method for measuring relaxation times
    Meiboom, Meiboom; Gill, Gill

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