Methods of obtaining ophthalmic lenses providing the eye with reduced aberrations
View Patent ↗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.
1. An intraocular lens, comprising: an anterior surface and an opposing posterior surface; wherein at least one of the surfaces of the intraocular lens is a prolate surface characterized by an equation
z
=
(
1
/
R
)
r
2
1
+
1
-
(
1
R
)
2
(
cc
+
1
)
r
2
+
adr
4
+
aer
6
wherein cc is a conical constant, R is a central lens radius, and ad and ae are aspheric polynomial coefficients; wherein cc has a value of about −2.809.
2. The intraocular lens of claim 1 , wherein ad has a value of about −0.000762.
3. The intraocular lens of claim 1 , wherein ae has a value of about −1.805e-05.
4. The intraocular lens of claim 1 , wherein the intraocular lens is an equiconvex lens.
5. The intraocular lens of claim 1 , wherein the intraocular lens comprises a refractive index of about 1.45.
6. The intraocular lens of claim 1 , wherein the intraocular lens comprises a thickness of about 1 mm.
7. The intraocular lens of claim 1 , wherein the intraocular lens is a 22D lens.
8. The intraocular lens of claim 1 , wherein the intraocular lens is a silicone lens.