US 11,931,296 B2
Systems and methods for vergence matching of an intraocular lens with refractive index writing
Robert Rosen, Groningen (NL); Franck Emmanuel Gounou, Groningen (NL); Carmen Canovas Vidal, Groningen (NL); and Aixa Alarcon Heredia, Groningen (NL)
Assigned to AMO Groningen B.V., Groningen (NL)
Filed by AMO Groningen B.V., Groningen (NL)
Filed on Dec. 19, 2022, as Appl. No. 18/068,477.
Application 18/068,477 is a continuation of application No. 16/837,955, filed on Apr. 1, 2020, granted, now 11,564,839.
Claims priority of provisional application 62/830,317, filed on Apr. 5, 2019.
Prior Publication US 2023/0123960 A1, Apr. 20, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A61F 9/008 (2006.01)
CPC A61F 9/00834 (2013.01) [A61F 9/00827 (2013.01); A61F 2009/00851 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A method for vergence matching for an intraocular lens (IOL), the method comprising:
determining a desired phase map for producing, by refractive index writing, a phase change in an IOL, the IOL having an anterior surface and a posterior surface;
calculating vergence of a wave after refraction on the anterior surface of the IOL for a desired wavelength design;
propagating a corresponding wavefront to the plane of the refractive index writing within the IOL;
estimating curvature of the wavefront in the plane of the refractive index writing; and
based on the estimated curvature, converting an initial phase map into a vergence-matched three-dimensional (3D) phase map, such that the initial phase map follows the curved vergence of the wavefront.