Determination of chromatic aberration in the human eye by means of Fresnel propagation theory
Por favor, use este identificador para citar o enlazar este ítem:
http://hdl.handle.net/10045/13591
Título: | Determination of chromatic aberration in the human eye by means of Fresnel propagation theory |
---|---|
Autor/es: | Mas, David | Pérez Rodríguez, Jorge | Illueca Contri, Carlos | Espinosa, Julián | Hernández, Consuelo | Vázquez Ferri, Carmen | Miret, Juan Jose |
Grupo/s de investigación o GITE: | Óptica y Ciencias de la Visión |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Óptica, Farmacología y Anatomía |
Palabras clave: | Physiological optics | Beam propagation | Chromatic aberrations |
Área/s de conocimiento: | Óptica |
Fecha de creación: | 2005 |
Fecha de publicación: | 23-sep-2005 |
Editor: | SPIE, The International Society for Optical Engineering |
Cita bibliográfica: | MAS CANDELA, David, et al. “Determination of chromatic aberration in the human eye by means of Fresnel propagation theory”. En: Medical Imaging / edited by Andrzej Kowalczyk, Adolf F. Fercher, Valery V. Tuchin. Bellingham, Wash. : SPIE, 2005. (Proceedings of SPIE; Vol. 5959). ISSN 1605-7422 |
Resumen: | In this communication, the authors have determined the longitudinal chromatic aberrations in real eyes. The method that has been used combines real data of corneal morphology, central thickness of crystalline lens and biometric measures of axial length together with numerical calculation of the propagation process. The curvature of the crystalline lens has been adjusted to different curvature models and refractive index distributions. The wavelength dependence of all ocular media has been modelled through the Cauchy formula. Propagation through anterior and posterior chambers has been accomplished through numerical calculation of diffraction integral instead of classical ray-tracing approach. This imposes serous restrictions on the number of samples that are needed for a full propagation process. If we are only interested in amplitude calculations the method consists of evaluating propagation from cornea to crystalline lens with a spectrum propagation method. Propagation from the lens to the best image plane is accomplished by a direct calculation of Fresnel integral. With this model, we have obtained the refraction chromatic difference in diopters for several eyes. Results are compared with real measures of the chromatic aberration, showing a good agreement with numerical calculations. The capabilities of the technique have been demonstrated by applying the method to the study of the chromatic aberration of a keratoconus. |
Patrocinador/es: | This work has been partially supported by the Conselleria de Cultura, Educació i Esport of the Generalitat Valenciana, through the project nr. GV04A/578. |
URI: | http://hdl.handle.net/10045/13591 |
ISSN: | 1605-7422 |
DOI: | 10.1117/12.624374 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | Copyright 2005 Society of Photo-Optical Instrumentation Engineers. This paper was published in Proceedings of SPIE, vol. 5959, and is made available as an electronic reprint with permission of SPIE. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited. |
Revisión científica: | si |
Versión del editor: | http://dx.doi.org/10.1117/12.624374 |
Aparece en las colecciones: | INV - IMAOS+V - Artículos de Revistas |
Archivos en este ítem:
Archivo | Descripción | Tamaño | Formato | |
---|---|---|---|---|
spie.pdf | 9,74 MB | Adobe PDF | Abrir Vista previa | |
Todos los documentos en RUA están protegidos por derechos de autor. Algunos derechos reservados.