Toric contact lenses

Details Toric contact lenses Toric contact lenses

G - Physics

02

C

G02C 7/04 (2006.01)

Patent

CA 2284724

A toric contact lens includes a posterior surface and an anterior surface, one of these surfaces including a toric optical zone, and these surfaces being shaped to form a ballast. A diameter of the posterior optical zone and a diameter of the anterior optical zone are selected to minimize thickness of the lens based on the cylindrical correction of the lens.

La présente invention concerne une lentille de contact torique définissant une face postérieure et une face antérieure. L'une de ces faces est pourvue d'une zone optique torique. En outre, la forme de ces faces est conçue pour constituer un ballast. Un diamètre de la zone optique postérieure et un diamètre de la zone optique antérieure sont choisis de façon à minimiser l'épaisseur de la lentille en tenant compte de la correction cylindrique de la lentille.

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