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首页> 美国政府科技报告 >The Measurement of Threshold Temperatures in the Ocular Fundus for Laser-Induced Visible Lesions.
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The Measurement of Threshold Temperatures in the Ocular Fundus for Laser-Induced Visible Lesions.

机译：激光诱导的可见病变眼底温度的测量。

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Measurements of temperature increases resulting from exposures to argon laser irradiations were made in the eyes of living rhesus monkeys with 10-20 micrometer diameter thermocouples. Using the appearance of an ophthalmoscopically visible lesion as the criterion for damage, the temperature associated with the appearance of a threshold lesion 5 minutes post exposure was determined. Temperature increases at the center of the lesion and at the scans of the thermocouple through the laser image and from ophthalmoscopic measurements of the lesion radius. Temperatures associated with threshold lesions were measured for a number of exposure durations and for image sizes from 100-200 micrometer (half-power diameter). Threshold were acquired for both macular and paramacular (temporal) exposure sites. The average macular threshold temperature increases at beam center were 66.1 C, 29.4 C, 24.1 C, and 19.9 C for exposure durations of .01 second, .1 second, 1 second, and 10 seconds exposure durations.

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