ArticleJournal of cataract and refractive surgery2026
Quantifying glare phenomena in patients with different intraocular lenses using a standard and modified clinical straylight meter.
Article in Journal of cataract and refractive surgery, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
purposeTo assess whether differences in straylight can be detected in patients implanted with multifocal intraocular lenses (IOLs) using a standard and modified clinical straylight measurement.
settingTertiary care university eye clinic.
designComparative cross-sectional study.
methodsStraylight was measured at 7 and 2.5 degrees using the standard and modified C-Quant devices. 2 measurements per eye and angle were obtained. Logarithm of the straylight parameter (s) at both angles and its increase between 7 and 2.5 degrees were compared between study groups.
results38 patients (67 eyes) were included in total: 12 patients (24 eyes) implanted with Tecnis Synergy, 13 patients (25 eyes) with Clareon PanOptix, and 13 patients (18 eyes) with monofocal lenses. The mean (±SD) straylight values at 7 degrees were 0.98 ± 0.16 log(s) with Synergy, 1.03 ± 0.14 log(s) with PanOptix, and 1.05 ± 0.22 log(s) with monofocal controls ( P = .864). At 2.5 degrees, they were 1.55 ± 0.09 log(s) with Synergy, 1.34 ± 0.10 log(s) with PanOptix, and 1.29 ± 0.21 log(s) with monofocal IOLs ( P < .001). The increase in straylight at 2.5 degrees was 0.57 ± 0.13 log(s) for Synergy, 0.31 ± 0.11 log(s) for PanOptix, and 0.25 ± 0.10 log(s) for monofocal controls ( P < .001).
conclusionsStraylight measurements at 2.5 degrees using the modified technique showed higher straylight levels with Synergy when compared with PanOptix and monofocal IOLs, whereas the standard technique did not detect differences between IOLs. Straylight testing at smaller angles emerges as a sensitive measure to identify multifocal designs posing an increased risk of inducing photic phenomena in pseudophakic patients.
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