Corneal contact lens

Claim 1

A corneal contact lens of generally concavo-convex cross section and having the approximate shape of a circular segment of a thin-walled hollow sphere, said lens having a continuously convex outer face and a continuously concave inner face, said faces being separated by the thickness of the lens, said lens having an annular peripheral zone bounded by the edge of said lens and having a central zone substantially centered in said peripheral zone, the outside diameter of the annular peripheral zone being approximately in the range of between 8 and 10 millimeters and the diameter of the central zone being approximately in the range of between 4 and 5 millimeters, the central zone being substantially transparent, the peripheral zone comprising an annular array of colored striations and substantially transparent regions, said transparent regions being disposed in annular formation between at least portions of neighboring striations and between at least portions of said striations and the edge of said lens; said central zone and said transparent regions consisting of a single homogeneous phase of material of optical quality, said striations being of substantially uniform composition for the thickness of the lens and having light transmissivity substantially smaller than the light transmissivity of said central zone and said transparent regions, said striations being bonded to said central zone and said transparent regions and forming therewith an integral, unitary body, whereby said transparent regions extend the optical zone of said lens from said central zone to the edge of said lens.