Abstract

A model for retinal laser photocoagulation dosimetry has been developed in which a fundus reflectance and a thermal damage model have been coupled together. The fundus reflectance model utilizes two reflecting layers in the fundus anterior to the choriocapillaris, Lambert-Beer’s law attenuators for the ocular media, retinal pigment epithelium (RPE), and choriocapillaris, a Kubelka-Munk homogeneous scatterer/absorber for the choroid, and a reflecting layer for the sclera.¹ The thermal damage model contains a light propagation routine, a thermal diffusion routine, and a rate description of the thermal damage process. The interface between these two models incorporates a third model in which light scattering by fundus tissues changes as a function of the predicted volume of damaged tissue.

© 1988 Optical Society of America