Ophthalmic lenses with enhanced surface and methods of fabrication thereof

摘要

An ophthalmic lens for providing enhanced vision includes a finished optic comprising a base optic and a membrane. The base optic has an anterior surface and an opposing posterior surface, at least one of the surfaces having a first value of a surface quality parameter. The base optic also includes a membrane including an inner surface and an outer surface, the inner surface covering one or more of the surfaces of the base optic. The outer surface has a second value of the surface quality parameter, wherein the second value is greater than the first value.

主权项

1. An intraocular lens, comprising:
a finished optic comprising:
a base optic having an anterior surface and an opposing posterior surface, at least one of the surfaces having a first value of a surface quality parameter; anda membrane including an inner surface and an outer surface, the inner surface covering one or more of the surfaces of the base optic, the outer surface having a second value of the surface quality parameter, the second value being greater than the first value, wherein the outer surface defines a plurality of echelettes comprised of a diffractive grating,wherein the base optic has a first refractive index at a wavelength within the visible spectrum and the membrane has a second refractive index at the wavelength, the first refractive index being unequal to the second refractive index; and a support structure coupled to the finished optic, wherein the support structure includes a protruding portion disposed within the base optic configured to allow ocular forces to be transferred to a central portion of the base optic, and further wherein the protruding portion is refractive.