Light scattering from a diffractive-refractive intraocular lens: a goniometer-based approach for individual zone assessment

Grzegorz Łabuz, Thomas J T P van den Berg, Gerd U Auffarth, Ramin Khoramnia

Research output: Contribution to journal/periodicalArticleScientificpeer-review

9 Citations (Scopus)
70 Downloads (Pure)

Abstract

We proposed and tested a method to measure light scattering from the diffractive lens profile in an echelle element featuring 9 zones. Measurements were performed using a goniometer-based setup up to 7.5°. The proportion of scattered light was calculated to derive the loss of light. Material scattering was minimal (∼1 deg2/sr); however, each echelle zone acted as a scattering source. A nearly gradual straylight increase was found with the zone number showing peak intensity between 3° and 3.75°. An estimated 6.2% ± 0.1% was lost due to scattering, which ought to be considered when reporting an IOL's light loss.

Original languageEnglish
Pages (from-to)6724-6732
Number of pages9
JournalBiomedical Optics Express
Volume13
Issue number12
DOIs
Publication statusPublished - 01 Dec 2022

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