Number of participants able to reach threshold acuity measurements on each of the pediatric tests for the different test distances shown.
figureposted on 02.02.2017, 18:39 by Nicola S. Anstice, Robert J. Jacobs, Samantha K. Simkin, Melissa Thomson, Benjamin Thompson, Andrew V. Collins
Only the ETDRS chart allowed for threshold measurements at the standard (3 m) testing distance for all participants. The number of children able to provide results on the ETDRS chart was less.
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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