A soft contact lens capable of engagement with an eye either...

G - Physics – 02 – C

Patent

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G02C 7/04 (2006.01)

Patent

CA 2435745

A soft contact lens for fitting to an eye of a wearer in either a right way out orientation or in an inside out orientation; the lens including first and second generally arcuate surfaces each terminating at on edge of the lens; wherein, each said first and second surfaces are capable of forming either an anterior convex or posterior concave surface; wherein in said right way out orientation there is provided an anterior convex surface and a posterior concave surface and in said inside out orientation said right way out anterior convex surface is converted to a posterior concave surface and said right way out posterior concave surface is converted to a convex anterior surface.

L'invention concerne une lentille de contact souple qui s'adapte à un oeil d'un porteur dans une orientation droite tournée vers l'extérieur ou dans une orientation inversée. La lentille présente une première et une deuxième surfaces généralement arciformes terminant chacune à un bord de la lentille. Chacune de ces surfaces peut former une surface convexe antérieure ou une surface concave postérieure. Dans l'orientation droite tournée vers l'extérieur, on obtient une surface convexe antérieure et une surface concave postérieure; et dans l'orientation inversée, cette surface convexe antérieure droite tournée vers l'extérieur est convertie en surface concave postérieure et la surface concave postérieure tournée vers l'extérieur est convertie en surface antérieure convexe

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