0000000000796097
AUTHOR
Georgios Zoulinakis
showing 3 related works from this author
Intraocular Telescopic System Design: Optical and Visual Simulation in a Human Eye Model
2016
Purpose. To design an intraocular telescopic system (ITS) for magnifying retinal image and to simulate its optical and visual performance after implantation in a human eye model. Methods. Design and simulation were carried out with a ray-tracing and optical design software. Two different ITS were designed, and their visual performance was simulated using the Liou-Brennan eye model. The difference between the ITS was their lenses’ placement in the eye model and their powers. Ray tracing in both centered and decentered situations was carried out for both ITS while visual Strehl ratio (VSOTF) was computed using custom-made MATLAB code. Results. The results show that between 0.4 and 0.8 mm of d…
Accommodation in human eye models: a comparison between the optical designs of Navarro, Arizona and Liou-Brennan.
2017
Aim To simulate and compare accommodation in accommodative and non-accommodative human eye models. Methods Ray tracing and optical design program was used. Three eye models were designed and studied: the Navarro, the Arizona and the Liou-Brennan. In order to make the Navarro and Liou-Brennan models to accommodate, specific geometric parameters of the models were altered with values that were chosen from the literature. For the Arizona model, its' mathematical functions for accommodation were used for the same accommodative demands. The simulation included four distances of accommodation for each model: at infinity, 3, 1 and 0.5 m.The results were diffraction images of a "letter F" for graph…
Optical impact of correcting elements
2016
Elementos correctores tales como lentes intraoculares (LIO) y lentes de contacto (LC) se usan comúnmente en oftalmología para corregir los errores de refracción, la presbicia y las cataratas. Por ello, estos elementos ópticos están en el centro de la investigación científica y el desarrollo. El impacto óptico de estos elementos es el tema principal de esta tesis doctoral. El impacto óptico se refiere a los resultados ópticos que inducen estos elementos en el sistema óptico del ojo humano. El impacto visual también se simula y se calcula con el fin de encontrar las diferencias entre la óptica y la calidad visual de un modelo de ojo humano con diferentes elementos correctores. Por lo tanto, l…