Centre National De La Recherche Scientifique

Ecole Polytechnique

Ecole Nationale Superieure De Techniques Avancees

Donald Peyrot

Florent Aptel

Florent Deloison

Kartsen Plamann

Caroline Crotti

An optical device for measuring the transmission and diffusion of a tissue of the front segment of an eye, includes: a light source; an optical collimation system for directing the collimated light beam towards a tissue of the front segment of an eye to be characterized; an optical mire placed on the optical path between the optical collimation system and the tissue; an optical imaging system capable of receiving a light beam transmitted by the mire and the tissue and capable of forming an image of the mire on an image detector; and an image processing system capable of calculating a modulation transfer function for the tissue from an image of the mire through the ocular medium. The optical mire includes a set of alternately light and dark angular sectors radially distributed from a central point. Different image processing methods for extracting a function representing the transmission and diffusion characteristics of the tissue are described.

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Limours, France

Donald Peyrot