Contact lens for treating binocular diplopia

G - Physics – 02 – C

Patent

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G02C 7/04 (2006.01)

Patent

CA 2694460

A contact lens for treating binocular diplopia, the contact lens comprising: a central region adapted to degrade light passing therethrough, so as to create a central scotoma in a patient's eye in which the contact lens is placed in use; and a peripheral region adapted to degrade light passing therethrough to a lesser extent than in the central region, or not at all; such that, in use, an image in the field of view of the said eye is degraded only in the centre or to a greater extent in the centre than in the periphery. Also provided is a method of manufacturing such a lens, and a method of treating binocular diplopia comprising applying such a lens to a patient's eye.

La présente invention concerne une lentille de contact pour le traitement de diplopie binoculaire, la lentille de contact comportant : une zone centrale adaptée pour la dégradation de la lumière traversant ladite zone, afin de créer un scotome central dans l'il d'un patient chez qui la lentille de contact est placée en utilisation ; et une zone périphérique adaptée pour la dégradation de la lumière traversant ladite zone périphérique à un degré moindre que dans la zone centrale, ou pas du tout ; de sorte qu'en utilisation, une image dans le champ visuel dudit il soit dégradée uniquement au centre ou à un degré supérieur à la dégradation à la périphérie. L'invention concerne également un procédé de fabrication d'une telle lentille, et un procédé de traitement de diplopie binoculaire comprenant l'application d'une telle lentille à l'il d'un patient.

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