Ophthalmic halo reduced lenses design

Ofer Limon, Zeev Zalevsky

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


The halo effect is a very problematic visual artifact occurring in extended depth of focus or multi-focal ophthalmic lenses such as e.g. intra-ocular (after cataract surgery) or contact lenses when used in dark illumination conditions. This artifact is generated due to surface structures added on top of those lenses in order to increase their depth of focus or to realize multiple focal lengths. In this paper we present novel solution that can resolve this major problem of ophthalmic lenses. The proposed solution involves modification to the surface structure that realizes the extended depth of focus. Our solution is fabricated and numerically and experimentally validated also in preliminary in-vivo trials.

Original languageEnglish
Pages (from-to)253-258
Number of pages6
JournalOptics Communications
StatePublished - 1 May 2015

Bibliographical note

Publisher Copyright:
© 2014 Elsevier B.V. All rights reserved.


  • Glare
  • Halo effect
  • Multi-focal lenses
  • Ophthalmic lenses


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