Alessandro Franchini

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PURPOSE To analyze the contrast differences between spherical and aspherical intraocular lenses (IOLs) using polychromatic modulation transfer function (MTF) computations. SETTING Oto-Neuro-Ophthalmological Department, Eye Institute, University of Florence, Florence, Italy. METHODS A questionnaire evaluating patients' subjective perception of halos,(More)
PURPOSE To evaluate the performance of 4 aspheric intraocular lenses (IOLs) in scotopic lighting conditions to determine the IOL with the best image quality at different spherical and chromatic aberrations and depths of focus. SETTING Eye Institute, Optic Physiopathological Department, University of Florence, Florence, Italy. METHODS Four IOLs were(More)
PURPOSE To study the behavior of light rays that impact the frosted, double-square edge of an intraocular lens (IOL). SETTING Optical Phisiophatological Department, University of Florence, Florence, Italy. METHODS The interaction of light rays as a function of the edge design of a frosted, sharp-edged IOL was evaluated using an experimental eye model(More)
PURPOSE To study the distribution and intensity of reflected glare images from 3 intraocular lens (IOL) edge designs. SETTING Eye Institute, University of Florence, Florence, Italy. METHODS The interaction of light rays as a function of edge design was evaluated using an experimental eye model and an advanced ray-tracing program. Three hydrophobic(More)