Abstract
Presentation Description :
We present a biophysical model of light traveling in cone photoreceptors implemented with a finite difference beam propagation method. The model considers how an electric field with a given initial shape propagates through the photoreceptor, starting at the proximal face of the inner segment. Photoreceptor morphology and refractive indices cause the beam to be waveguided into the outer segment where the amount of light absorbed is calculated. By varying the initial electric field and the parameters defining the photoreceptor, the efficiency of light capture can be predicted for a variety of conditions. We show examples of the model in practice and compare it to empirical results.
This abstract was presented at the 2024 ARVO Annual Meeting, held in Seattle, WA, May 5-9, 2024.