A three-dimensional model of corneal thermal response to CO2 laser radiation is constructed and numerical solutions for temperature rise are computed. Power distribution in the laser beam and a conducting air-cornea interface are considered explicitly. It is found that the radial distribution of temperature increases produced by a gaussian beam is also gaussian, for brief exposures. The corneal damage threshold is examined in terms of this result.
M. A. Mainster, T. J. White, and J. H. Tips, "Corneal Thermal Response to the CO2 Laser," Appl. Opt. 9, 665-667 (1970)