Therapeutic contact lens for pseudoaphakic eyes and/or eyes...

A - Human Necessities – 61 – F

Patent

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A61F 9/00 (2006.01) G02C 7/04 (2006.01)

Patent

CA 2605940

The invention relates to a contact lens for pseudoaphakic eyes and/or eyes with macular and retinal degeneration. The inventive lens is characterised in that it is produced by applying a filter with yellow pigmentation to a standard contact lens in order to protect the eyes from short wavelengths in the visible spectrum (less than 500 nm). The invention removes the difficulties and risks associated with existing techniques used to provide protection for cataract-operated eyes and improved protection for eyes undergoing neurodegenerative processes simply with the use of a contact lens. The invention combines a standard contact lens and a yellow pigmentation filter which absorbs short wavelengths of between 350 and 500 nm, both of which are suitable for use in relation to the human eye.

L'invention concerne un verre de contact pour yeux pseudo-aphaques et/ou à dégénérescence maculaire et rétinienne, caractérisé en ce qu'il résulte de l'application d'un filtre à pigmentation jaune sur un verre de contact habituel dans le but de les protéger de longueurs d'onde courte du spectre visible (inférieures à 500 nm). L'invention permet, d'une part, de surmonter les difficultés et les risques des techniques existantes afin de conférer une telle protection à des yeux ayant subi une opération des cataractes et, d'autre part, d'améliorer la protection des yeux en cours de neurodégénérescence grâce à une simple application d'un verre de contact. L'invention concerne en outre la combinaison d'un verre de contact habituel et d'un filtre à pigmentation jaune absorbant les longueurs d'onde courte de 350-500 nm, tous deux se prêtant à une application dans l'oeil humain.

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