Corneal inlay lenses
AssigneeChiron IntraOptics, Inc.
InventorsGraham D. Barrett, William J. Link, Cary J. Reich
Life of this patent
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Abstract
A low or high refractive index corneal inlay optical lens adapted to be inserted singly or multiply between the layers of a cornea to correct refractive errors in eyesight, wherein the implanted lens is a solid transparent uncoated lens having no apertures therethrough, of a diameter less than that of the optic zone of the eye under normal light or bright light conditions, such that the movement of fluids, nutrients and gases throughout the corneal layers is unimpeded, and wherein the composition of the lens or lenses relative to that of the surrounding stromal tissue are such that multiple refractive indices may be created and multiple focal corrections are possible.
Claims12
A corneal implant lens for surgical implantation between the layers and in the optic zone of a cornea of an eye to correct refractive errors in a patient, comprising a solid transparent optical lens having no apertures therethrough, of a diameter such that the entire optic zone of said cornea is not covered by said lens, wherein the diameter of said lens is substantially less than the diameter of said optic zone of said cornea, and wherein when implanted in the eye multiple refractive indices and multiple focalities are created only by the presence or absence of said lens.
Dependencies are inferred from the claim text.