Patent ID: 7322695

Claim:
A method for designing a contact lens, comprising the step of providing an aspheric, rotationally symmetric base curve that is a function of refractive error, wherein the base curve is selected from the group consisting of a first surface having a sphere power of about −12 to about −2 diopters, an apical curvature of about 7.8+/−0.2 mm and an asphericity constant of about −0.25+/−0.02, a second surface having a sphere power of about −2 to about +2 diopters, an apical curvature of about 8.0+/−0.2 mm and an asphericity constant of about −0.17+/−0.02 and a third surface having a sphere power of about +2 to about +12 diopters, an apical curvature of about 8.2+/−0.2 mm and an asphericity constant of about −0.10+/−0.02.