ATORIC SURFACES FOR MINIMIZING SECONDARY ASTIGMATISM IN CONTACT LENSES FOR CORRECTION OF ASTIGMATISM

摘要

The present invention relates to an ophthalmic device such as ophthalmic lenses. An ophthalmic device may comprise an aspherical first surface and an atoric second surface, disposed opposite to the first surface and configured to be adjacent to eyes of a user. The second surface may comprise a first conic constant along a first meridian and a second conic constant along a second meridian. The ophthalmic lens may be configured to minimize spherical aberration along the first meridian and the second meridian.;COPYRIGHT KIPO 2019