Methods of obtaining ophthalmic lenses providing the eye with reduced aberrations

摘要

The present invention discloses methods of obtaining ophthalmic lens capable of reducing the aberrations of the eye comprising the steps of characterizing at least one corneal surface as a mathematical model, calculating the resulting aberrations of said corneal surface(s) by employing said mathematical model, selecting the optical power of the intraocular lens. From this information, an ophthalmic lens is modeled so a wavefront arriving from an optical system comprising said lens and corneal model obtains reduced aberrations in the eye. Also disclosed are ophthalmic lenses as obtained by the methods which are capable reducing aberrations of the eye.

主权项

1. An intraocular lens based on a process comprising the steps of: (i) measuring an aberration of the eye by measuring at least one surface of the cornea of an eye;
characterizing the at least one surface as a mathematical model; using the measurement to determine a corneal spherical aberration of the eye: (ii) modeling an intraocular lens having a spherical surface and an aspheric surface, the spherical surface having a radius, and the aspheric surface having a radius, a conic constant and at least one non-zero aspheric polynomial constant; (iii) selecting a power of the intraocular lens, wherein the radius of the spherical surface and the radius of the aspheric surface determine the power of the intraocular lens; and (iv) selecting a spherical aberration of the intraocular lens to offset the spherical aberration of the cornea, wherein the conic constant and the at least one aspheric polynomial constant of the aspheric surface determine the spherical aberration of the intraocular lens.