ArticleClinical optometry2025
Vision Performance of a 3-Zone Progressive™ Design Kalifilcon A Silicone Hydrogel Multifocal Contact Lens is Not Influenced by Pupil Size: Findings from a Multicenter Clinical Study.
Article in Clinical optometry, 2025. 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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6 authors.
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Abstract
Purpose: Factors including age, refractive error, and luminance can affect pupil size and may influence the performance of multifocal contact lenses (MFCLs). This post-hoc analysis aimed to investigate correlations between pupil size and vision performance of a 3-Zone Progressive™ design, daily disposable silicone hydrogel (kalifilcon A) MFCL. Methods: Habitual MFCL wearers aged ≥40 years were enrolled in a 3-week, single-arm, bilateral, open-label study to assess near, intermediate, and distant vision performance. Pupil sizes were recorded at dispensing, along with binocular high-contrast visual acuity (VA) by logMAR. VA was assessed at 1- and 3-weeks' follow-up for distance, intermediate, and near vision, and participants rated vision performance using a 0-100 scale (100=most favorable) at both these follow-ups. Responses with score ≥50 were considered favorable. Pearson correlation coefficient (r) was used to determine the correlation significance. Results: Pupil size ranged from 2.0 mm to 7.0 mm. Mean logMAR VA was -0.009, 0.046, and 0.114 (1 week), and -0.012, 0.046, and 0.115 (3 weeks) for distance, intermediate, and near vision, respectively. Statistical analysis of the VA distribution found no significant correlation between VA and pupil size after 1 week of MFCL wear for distance or near vision (r Conclusion: The kalifilcon A daily disposable silicone hydrogel MFCL delivers stable VA and significantly favorable (p<0.05) ratings at all distances for patients with a wide range of pupil sizes.
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