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Various optical designs have been proposed to implement multifocality or an extended depth of focus (EDOF). Depending on the optical principle of an implanted lens, the visual performance often is deteriorated by superposition of individual image planes and halos of varying intensity. This experimental study presents a concept to visualize the light fields and especially the halos of mono- and multifocal IOLs using the well known alcoholic beverage \u201couzo\u201d in order to obtain qualitative data on the imaging characteristics. We conclude that ouzo is a useful, cost effective, and nonpolluting medium for beam visualization and an alternative to fluorescein or milk, which could find an application for educational purposes.<\/jats:p>","DOI":"10.1155\/2019\/6425040","type":"journal-article","created":{"date-parts":[[2019,6,27]],"date-time":"2019-06-27T19:31:33Z","timestamp":1561663893000},"page":"1-10","source":"Crossref","is-referenced-by-count":9,"title":["Visualization of Light Propagation with Multifocal Intraocular Lenses Using the Ouzo Effect"],"prefix":"10.1155","volume":"2019","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0661-6239","authenticated-orcid":true,"given":"Timo","family":"Eppig","sequence":"first","affiliation":[{"name":"Institute of Experimental Ophthalmology, Saarland University, 66421 Homburg, Saar, Germany"},{"name":"AMIPLANT GmbH, Haidling 1, 91220 Schnaittach, 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