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Título: Fresnel-based analysis of Kasprzak’s crystalline model: statistical results and individual predictions
Autores: Pérez Rodríguez, Jorge
Mas Candela, David
Miret Marí, Juan José
Vázquez Ferri, Carmen
Hernández Poveda, Consuelo
Illueca Contri, Carlos
Fecha: 2007-10-16
2007-10-16
2004
2005-03-20
Publicador: Elsevier
Fuente: Ver documento
Tipo: info:eu-repo/semantics/article
Tema: Fresnel propagation algorithms
Human eye
Crystalline modelization
Numerical calculation methods
Óptica
Descripción: We present a new modelization technique of the human eye based on the calculation of light distributions inside the eye. The method is applied to the study of the crystalline model proposed by Kasprzak and Popiolek. We obtain corneal surface data and axial lengths for two groups of real eyes. With these data, we construct a diffractive model of a human eye, which permits calculation of propagated light distributions at any distance inside the eye. The real crystalline lens is substituted by Kasprzak’s model, thus obtaining a realistic model eye. From calculated patterns, we obtain the Strehl ratio and the modulation transfer functions of 44 eyes, divided in two groups according to the age. We compare our results with those in the bibliography. Finally, we check the performance of the method through individual comparison of the calculated image positions with respect to the retina with the refractive data for the each subject. We have observed good agreement between our method and results from other authors. We also find reasonable correlation between calculated refraction and subjective exams.
This work has been partially supported by the Conselleria de Cultura, Educació i Esport of the Generalitat Valenciana, through the project nr. GV04A/578.
Idioma: Inglés
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