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1. (WO2017149401) OPHTHALMIC LENS HAVING AN EXTENDED DEPTH OF FOCUS

Pub. No.:    WO/2017/149401    International Application No.:    PCT/IB2017/050849
Publication Date: Sat Sep 09 01:59:59 CEST 2017 International Filing Date: Thu Feb 16 00:59:59 CET 2017
IPC: A61F 2/16
Applicants: NOVARTIS AG
Inventors: MILANOVIC, Zoran
WEI, Xin
HONG, Xin
Title: OPHTHALMIC LENS HAVING AN EXTENDED DEPTH OF FOCUS
Abstract:
In certain embodiments, an ophthalmic lens (100) includes an optic (102) having an anterior surface (14), a posterior surface (106), and an optical axis (108). At least one of the anterior surface and the posterior surface includes a first zone (112) extending from the optical axis to a first radial boundary and a second zone (114) extending from the first radial boundary to the edge of the optic. The first zone includes an inner region (116) and an outer region (118) separated by a phase shift feature (120), the phase shift comprising a ridge extending outwardly from the inner region and the outer region.