Lenses, systems and methods for providing binocular customized treatments to correct presbyopia
An apparatus, such as lenses, a system and a method for providing custom ocular aberrations that provide higher visual acuity. The apparatus, system and method include inducing rotationally symmetric aberrations along with an add power in one eye and inducing non-rotationally symmetric aberrations along with an add power in the other eye to provide improved visual acuity at an intermediate distance.
1. A pair of intraocular lenses comprising:
a first intraocular lens sized and configured for implantation in a first eye of a patient, the first intraocular lens including rotationally symmetric aberrations configured to induce a predetermined amount of one or more fourth or higher order spherical aberrations in said first eye of the patient; and
a second intraocular lens sized and configured for implantation in a second eye of a patient, the second intraocular lens including non-rotationally symmetric aberrations configured to induce a predetermined amount of one or more second or higher order asymmetrical aberrations in said second eye of the patient;
wherein the predetermined amount of one or more fourth or higher order spherical aberrations is induced only in the first eye, and the predetermined amount of one or more second or higher order asymmetrical aberrations is induced only in the second eye; and
wherein the predetermined amount of one or more fourth or higher order spherical aberrations and the predetermined amount of one or more second or higher order asymmetrical aberrations collectively achieve binocular depth of focus.
2. The pair of lenses of claim 1 , wherein the first lens includes a symmetrical multifocal intraocular lens and the second lens includes an asymmetrical multifocal lens.
3. The pair of lenses of claim 1 , wherein the first intraocular lens is configured to provide visual acuity above a predetermined threshold for objects located at far and intermediate distances or far and near distances and the second intraocular lens is configured to provide visual acuity above a predetermined threshold for objects located at far distances.
4. The pair of lenses of claim 3 , wherein the non-rotationally symmetric aberrations are selected from the group consisting of: astigmatism, coma and trefoil.
5. The pair of lenses of claim 4 , wherein the first intraocular lens is configured to provide visual acuity above a predetermined threshold for objects located at far and intermediate distances or far and near distances and the second intraocular lens is configured to provide visual acuity above a predetermined threshold for objects located at far distances.
6. The pair of lenses of claim 1 , wherein the first lens includes an asymmetrical multifocal intraocular lens and the second lens includes a symmetrical monofocal lens.