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

被引：10

作者：

Labuz, Grzegorz ^{[1
]}

van den Berg, Thomas J. T. P. ^{[2
]}

Auffarth, Gerd U. ^{[1
]}

Khoramnia, Ramin ^{[1
]}

机构：

[1] Univ Hosp Heidelberg, David J Apple Ctr Vis Res, Dept Ophthalmol, Heidelberg, Germany

[2] Royal Netherlands Acad Arts & Sci, Netherlands Inst Neurosci, Amsterdam, Netherlands

来源：

BIOMEDICAL OPTICS EXPRESS | 2022年 / 13卷 / 12期

关键词：

EXTENDED-DEPTH; OCULAR STRAYLIGHT; OPTICAL-QUALITY; IMAGE QUALITY; PERFORMANCE; HISTORY; DESIGN;

D O I：

10.1364/BOE.474778

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

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 degrees. The proportion of scattered light was calculated to derive the loss of light. Material scattering was minimal (similar to 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 degrees and 3.75 degrees. An estimated 6.2% +/- 0.1% was lost due to scattering, which ought to be considered when reporting an IOL's light loss.

引用

页码：6724 / 6732

页数：9

共 28 条

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