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Proceedings Paper

Three-dimensional ray tracing for refractive correction of human eye ametropies
Author(s): J. A. Jimenez-Hernandez; G. Diaz-Gonzalez; F. Trujillo-Romero; M. D. Iturbe-Castillo; R. Juarez-Salazar; A. Santiago-Alvarado
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Paper Abstract

Ametropies of the human eye, are refractive defects hampering the correct imaging on the retina. The most common ways to correct them is by means of spectacles, contact lenses, and modern methods as laser surgery. However, in any case it is very important to identify the ametropia grade for designing the optimum correction action. In the case of laser surgery, it is necessary to define a new shape of the cornea in order to obtain the wanted refractive correction. Therefore, a computational tool to calculate the focal length of the optical system of the eye versus variations on its geometrical parameters is required. Additionally, a clear and understandable visualization of the evaluation process is desirable. In this work, a model of the human eye based on geometrical optics principles is presented. Simulations of light rays coming from a punctual source at six meter from the cornea are shown. We perform a ray-tracing in three dimensions in order to visualize the focusing regions and estimate the power of the optical system. The common parameters of ametropies can be easily modified and analyzed in the simulation by an intuitive graphic user interface.

Paper Details

Date Published: 28 September 2016
PDF: 7 pages
Proc. SPIE 9947, Current Developments in Lens Design and Optical Engineering XVII, 99471F (28 September 2016); doi: 10.1117/12.2238415
Show Author Affiliations
J. A. Jimenez-Hernandez, Univ. Tecnológica de la Mixteca (Mexico)
G. Diaz-Gonzalez, Univ. Tecnológica de la Mixteca (Mexico)
F. Trujillo-Romero, Univ. Tecnológica de la Mixteca (Mexico)
M. D. Iturbe-Castillo, Instituto Nacional de Astrofísica, Óptica y Electrónica (Mexico)
R. Juarez-Salazar, Ctr. de Investigación y Desarrollo de Tecnología Digital (Mexico)
A. Santiago-Alvarado, Univ. Tecnológica de la Mixteca (Mexico)

Published in SPIE Proceedings Vol. 9947:
Current Developments in Lens Design and Optical Engineering XVII
R. Barry Johnson; Virendra N. Mahajan; Simon Thibault, Editor(s)

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