Fig 4.tif (1.12 MB)
Do picture-based charts overestimate visual acuity? Comparison of Kay Pictures, Lea Symbols, HOTV and Keeler logMAR charts with Sloan letters in adults and children - Fig 4
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posted on 2017-02-02, 18:39 authored by Nicola S. Anstice, Robert J. Jacobs, Samantha K. Simkin, Melissa Thomson, Benjamin Thompson, Andrew V. CollinsBland Altman comparisons of visual acuity measurements between ETDRS and pediatric charts in adults (A-D) and children (E-H and I-L with two outliers removed). A positive bias indicates the second chart gave better acuities.
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Sloan lettersKay Picture optotypesshape cues aidDiabetic Retinopathy StudyLea SymbolsCrowded Keeler logMARchart design featuresuncrowded Landolt C VA measurementsreference Landolt C taskKay Pictures optotypesConclusion Kay Pictures over-estimated VAETDRSDS25 adultsKeeler logMAR chartsResults Crowded Kay PicturesHOTVVA measurementsCrowded Kay Pictureschildren Purpose Children
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