ArticleTranslational vision science & technology2019
Impact of Pupil Diameter on Objective Refraction Determination and Predicted Visual Acuity.
Article in Translational vision science & technology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
5 citing papers in PubMed, 9 citations in OpenAlex.
- Comparison of Wavefront-optimised Refraction Determined Pre- and Post-cycloplegia in Individuals with Down Syndrome.Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists) · 2026Article
- Comparing visual acuity and optimized visual image quality for individuals with and without Down syndrome.Optometry and vision science : official publication of the American Academy of Optometry · 2025Article
- Comparison of Unaided and Aided Visual Acuity in Adults With Down Syndrome.Translational vision science & technology · 2025Article
- Sources of reduced visual acuity and spectacle treatment options for individuals with Down syndrome: Review of current literature.Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists) · 2024Review
- Dioptric differences between clinically determined and metric-optimised refractions for adults with Down syndrome.Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists) · 2023Article
Corrections and comments
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
Abstract
purposeObjective refraction based on wavefront aberration measures is a potential tool for patients unable to participate in a subjective refraction, but the selection of a single pupil diameter for determination of the objective refraction may pose challenges. The purpose of this study was to investigate the impact of pupil diameter on determination of objective refractions for adults with and without Down syndrome (DS) and predicted change in acuity with increasing pupil diameter.
methodsWavefront error was obtained from 27 adults with DS and 24 controls, and metric-optimized refractions were identified for 4- and 6-mm pupil diameters. Total dioptric difference between refractions for the two pupil sizes was calculated, and repeated measures analysis of variance was used to evaluate differences in refractions. Next, five control observers read acuity charts produced to simulate image quality of each subject if the same refraction was applied for both a 4- and 6-mm pupil diameter. A comparison of acuity with performance on a clear chart was used to calculate letters lost for each chart. Repeated measures analysis of variance was used to test for differences in letters lost from 4- and 6-mm diameters.
resultsThe dioptric difference between refractions for 4- and 6-mm pupils was significantly greater in subjects with DS (0.51 diopters vs. 0.19 diopters,
conclusionsDifferences between refractions by pupil diameter were similar to the repeatability of subjective refraction. Visual acuity differences were clinically small, suggesting similar performance for objective refractions with increasing pupil diameter. TRANSLATIONAL RELEVANCE: This work quantifies the potential impact of pupil diameter change on the performance of wavefront optimized refractions in clinical patients.
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