Accession Number : ADA117483

Title :   Autoradiography of Primate Retina after Q-Switched Ruby Laser Radiation.

Descriptive Note : Conference paper,

Corporate Author : LETTERMAN ARMY INST OF RESEARCH PRESIDIO OF SAN FRANCISCO CA

Personal Author(s) : Schuschereba,Steven T. ; Beatrice,Edwin S.

Report Date : 18 JUN 1982

Pagination or Media Count : 15

Abstract : Biological implications in the use of laser devices by the Army has been the subject of study in the last two decades. A principal concern of laser bioeffects investigations has been mechanism and recovery processes of retinal tissue after damage by laser radiation near the visible damage threshold. The work objectives of this study were: (1) to evaluate the recovery of Rhesus monkey retinal rods (similar in retinal structure to the human) after exposure (20 nsec pulse duration, 1000 micrometers beam spot-size) to a range of Q-switched ruby laser radiation (suprathreshold to subthreshold for retinal damage as evidenced by ophthalmoscopy); (2) to correlate morphologic damage by both light and electron microscopy with biochemical abnormalities observed by autoradiography, (3) to assess the degree of sensitivity provided by autoradiography and (4) to postulate possible damage and recovery processes.

Descriptors :   *Laser radiobiology, *Ruby lasers, *Laser beams, *Radiation effects, *Autoradiography, Q switching, Laser damage, Retina, Recovery, Rhesus monkeys, Radiation damage, Radiation injuries, Morphology(Biology), Threshold effects

Subject Categories : Radiobiology

Distribution Statement : APPROVED FOR PUBLIC RELEASE