Implications of the Corneal Temperature Range in the Prediction of Laser Thermal Damage

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Abstract
Corneal temperatures of the rhesus monkey were measured under conditions that may exist during laser treatments. The minimum and maximum temperatures found for all conditions were 29.54.degree. C and 39.16.degree. C, respectively, a range of 9.62.degree. C. A computer model of thermal damage due to laser irradiation was used to determine the effect varying initial temperature could have on corneal damage threshold. The range of 9.62.degree. C found in monkeys corresponded to a 39% difference in threshold power. The dependence of damage thresholds on initial temperature is an important factor to consider when basing laser safety standards on damage thresholds.

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