Accession Number : AD0905532

Title :   Q-Switched Ruby Retinal Damage in Rhesus Monkey.

Descriptive Note : Technical rept.,

Corporate Author : FRANKFORD ARSENAL PHILADELPHIA PA

Personal Author(s) : Beatrice, Edwin S. ; Steinke, Charles

Report Date : SEP 1972

Pagination or Media Count : 36

Abstract : Threshold energies and probability of damage curves for retinal damage by Q-switched ruby laser operating in the TEM sub oo mode were determined in the Rhesus monkey. Threshold values were established for both a 3 mm and 8 mm diameter beam which produced estimated retinal spot sizes of 40 microns and 70 microns. The ophthalmoscopic 50% probability of damage was 16.9 and 24.7 microjoules entering the eye for 3 mm and 8 mm beams respectively for extramacular exposures and 9.8 and 12.8 microjoules respectively for macular exposures.

Descriptors :   *LASERS), (*RETINA, (*RADIATION EFFECTS, LASERS), THRESHOLDS(PHYSIOLOGY), RADIATION INJURIES, RUBY, OPHTHALMOLOGY, HISTOLOGICAL TECHNIQUES, MICROSCOPY, MONKEYS, ENERGY, BURNS(INJURIES), EYE PIGMENTS, PHOTOMICROGRAPHY, DOSAGE.

Subject Categories : Radiobiology
      Lasers and Masers

Distribution Statement : APPROVED FOR PUBLIC RELEASE