Simplifying numerical ray tracing for two-dimensional non circularly symmetric models of the human eye.

摘要: Ray tracing is a powerful technique to understand the light behavior through an intricate optical system such as that of human eye. The prediction visual acuity can be achieved characteristics geometrical point spread function. In general, its precision depends on number discrete rays and accurate surface representation each eye’s components. Recently, method simplifies calculation function has been proposed for circularly symmetric systems [Appl. Opt.53, 4784 (2014)APOPAI0003-693510.1364/AO.53.004784]. An extension this 2D noncircularly proposed. method, two-dimensional ray procedure arbitrary surfaces shapes developed where surfaces, rays, refractive indices are all represented in functional forms being approximated by Chebyshev polynomials. Liou Brennan anatomically eye model adapted used evaluating method. Further, real measurements anterior corneal normal, astigmatic, keratoconic eyes were substituted first model. results have shown performing tracing, utilizing approximation, possible models, performed with newly created Chebfun toolbox.