Multispheric contact lens

摘要

Multispheric contact lenses have a posterior surface including a central, concave spherical optical zone and at least two concave spherical curves peripheral to the central concave optical zone. The lens includes a fillet convex curve connecting the central zone and the first peripheral curve, and fillet convex curves connecting adjacent peripheral concave curves, wherein each junction of a fillet convex curve with a concave spherical curve is tangential. The lenses have an anterior surface including one or more convex spherical curves.