Patent ID: 7296890

Claim:
A single component contact lens comprising: a front surface; a back surface formed to fit a cornea of an eye; a first axis, wherein the first axis has a first sub-axis and a second sub-axis; a second axis, wherein the first axis and the second axis are orthogonal to each other and wherein the second axis has a third sub-axis and a fourth sub-axis; a first base curve for the back surface, wherein the first base curve is associated with the first sub-axis; a second base curve for the back surface, wherein the second base curve is associated with the second sub-axis; a third base curve for back surface, wherein the third base curve is associated with the third sub-axis; and a fourth base curve for the back surface, wherein the fourth base curve is associated with the fourth sub-axis, wherein the first base curve, the second base curve, the third base curve, and the fourth base curve are selected to form a shape for the back surface that conforms to a measured shape of the cornea.