Patent ID: 8911079

Claim:
A translating presbyopia contact lens comprising an optical zone, a lenticular portion surrounding the optical zone, a bevel portion surrounding the lenticular portion out to an edge of the contact lens and a pseudotruncation which is asymmetric about the vertical meridian, where the optical zone meets the lenticular portion is an optical lenticular junction and where the lenticular portion meets the bevel portion is a lenticular bevel junction; wherein the design of the lens surface is obtained from by the following equation: T 3 =T 1 +( T 2 −T 1 )*(Sin(( P 3 −P 1 )/( P 2 −P 1 )*90)) n wherein P 1 is the distance from the lens center to the optical lenticular junction and T 1 is the thickness at optical lenticular junction, P 2 is the distance from the lens center to the lenticular bevel junction, and T 2 is the thickness at the lenticular junction, P 3 is an arbitrary point in the contact lens between and including P 1 and P 2 and T 3 is the thickness at P 3 to be determined.