Patent ID: 9454018
Filing Date: 2016-09-27
CPC Classification: A61F,G02C

Claim Text:
1. A method for modifying a depth of focus of an eye, the method comprising the steps of: measuring a wavefront aberration of the eye; determining an in-focus visual acuity of the eye; and determining a asymmetric aberration to be induced in the wavefront aberration of the eye, the depth of focus being extended by the asymmetric aberration when induced in the wavefront aberration and while maintaining the in-focus visual acuity; forming a multifocal ophthalmic lens, having at least two focal points, one to correct near vision and one to correct far vision, and configured to introduce the asymmetric aberration; wherein the forming step comprises one of a group consisting of: lathe-cutting an ophthalmic lens having first and second opposing surfaces, the first and second opposing surfaces together configured to introduce the asymmetric aberration to the eye; and wherein the introduced asymmetric aberration extends the depth of focus associated with each of the at least two focal points.