Extended depth of focus (EDOF) lens to increase pseudo-accommodation by utilizing pupil dynamics

USRE45969E1 · kind E1 · reissue

Assignee

• Novartis AG · CH

Inventors

• Xin Hong · Arlington, US
• Myoung-Taek Choi · Arlington, US
• Mutlu Karakelle · Fort Worth, US
• Xiaoxiao Zhang · Fort Worth, US
• Michael J. Simpson · Toronto, CA
• Yan Zhang · Baden, CH

Key dates

• Filing date: Oct 15, 2015
• Grant date: Apr 12, 2016
• Expiry date: Oct 15, 2035

Classification

• Technology area (CPC —): General

Abstract

In one aspect, the present invention provides an ophthalmic lens (e.g., an IOL) that includes an optic having an anterior surface and a posterior surface disposed about an optical axis. At least one of the surfaces (e.g., the anterior surface) has a profile characterized by superposition of a base profile and an auxiliary profile. The auxiliary profile can include an inner region, an outer region and a transition region between the inner and the outer regions, where an optical path difference across the transition region (i.e., the optical path difference between the inner and the outer radial boundaries of the transition region) corresponds to a non-integer fraction (e.g., ½) of a design wavelength (e.g., a wavelength or about 550 nm).