Toric contact lenses

Details Toric contact lenses Toric contact lenses

G - Physics

02

C

G02C 7/04 (2006.01)

Patent

CA 2735401

The invention provides a toric lens having back surface toric correction that does not result in increased corneal staining. More specifically, the back surface toric optic zone of the lens of the invention is equal to or greater than about 50 % the entire back surface area.

Linvention concerne une lentille de contact torique possédant une correction torique de surface arrière qui nengendre pas de piqueté cornéen accru. Plus précisément, la zone optique torique de la surface arrière de la lentille selon la présente invention est égale ou supérieure à environ 50 % de la superficie arrière tout entière.

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