SourceNederlands Tijdschrift voor Geneeskunde, 151, 45, (2007), pp. 2494-7
Article / Letter to editor
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Nederlands Tijdschrift voor Geneeskunde
SubjectDCN 1: Perception and Action; NCEBP 2: Evaluation of complex medical interventions; UMCN 3.3: Neurosensory disorders; UMCN 5.1: Genetic defects of metabolism
A chart for measuring visual acuity is a better functional test than the routine distance visual acuity testing with single optotypes. The characteristics of a good reading chart are: logarithmically diminishing print size, simultaneous measurement of reading acuity and reading speed, and the calculation of one score for reading acuity corrected for the number of reading errors. The original German-language Radner Reading Chart meets all these requirements, and above all emphasizes the principle of 'sentence optotypes' i.e. highly standardized sentences, because sentence complexity also influences reading performance. Sentence optotypes were created in the Dutch language and tested according to Radner's strict principles. The most equally matched sentence optotypes in terms of reading speed and number of reading errors were selected for the introduction and printing of the first Dutch version of the Radner Reading Chart. The Dutch Radner Reading Chart is precise and practical and therefore useful for research and daily practice.
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- Faculty of Medical Sciences 
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