Patent ID: 8740978
Filing Date: 2014-06-03
Classification: A61F,G02B,G02C

Abstract:
1. An intraocular lens, comprising: an optic having an aperture disposed about an optical axis; and a positioning member coupled to the optic; the optic comprising: a first surface and an opposing second surface; a diffractive multifocal profile disposed on the first surface or the second surface, wherein the diffractive multifocal profile provides a base power and an add power; and an extended focus mask disposed on at least one of the surfaces, wherein the extended focus mask comprises a diffractive pattern having an add power that is less than or equal to about 1.5 Diopters and wherein the extended focus mask is configured to extend the depth of focus of the base power, the add power, and a range of viewing distances between the base power and the add power.