Threshold Lesion Temperatures in Laser-Irradiated Rabbit Eyes

Threshold Lesion Temperatures in Laser-Irradiated Rabbit Eyes

The purpose of this research was to measure threshold temperatures corresponding to the formation of minimum ophthalmoscopically visible lesions induced in rabbit fundi by a ten-second exposure from an argon C. W. laser (4880A). The posterior pole of the eye was surgically exposed and a specially de...

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Bibliographische Detailangaben
Hauptverfasser: Polhamus, G D, Welch, A J
Format: Report
Sprache:eng
Schlagworte:
EYE
LABORATORY ANIMALS
LASER RADIOBIOLOGY
OPHTHALMOLOGY
RABBITS
RADIATION EFFECTS
RADIATION INJURIES
Radiobiology
RETINA
TEMPERATURE
THRESHOLDS(PHYSIOLOGY)
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Zusammenfassung:The purpose of this research was to measure threshold temperatures corresponding to the formation of minimum ophthalmoscopically visible lesions induced in rabbit fundi by a ten-second exposure from an argon C. W. laser (4880A). The posterior pole of the eye was surgically exposed and a specially designed microthermocouple with a 20-micron diameter tip was inserted into the ocular fundus to measure temperature rises. The mean threshold temperature for 30 measurements in 13 rabbits was 54C. System error was estimated at 5% of temperature rise, or slightly less than 1C.