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A new Arabic distance visual acuity chart.

M M Al-Mufarrej·F A Abo-Hiemed·A O Oduntan
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Abstract

BACKGROUND: A new Arabic visual acuity chart has been designed using the various recommendations made by vision scientists for achieving a standardized acuity chart. Our goal was to design a standardized Arabic distance visual acuity chart. METHOD: The chart is based on the design principle devised by Bailey and Lovie. Twelve Arabic letters of nearly equal legibility values, which could be constructed on a 5 by 5 Snellen framework, were used. The LogMAR method of scaling visual acuity was used, hence the size of letters in the rows progresses in a uniform step of 0.1 logarithm unit. RESULT: The size of letters in the chart ranged from 58.2 to 4.6 mm, corresponding to visual acuity of 4/40 to 4/3 (6/60 to 6/4) (20/200 to 20/15). The chart is designed for use at 4 m; acuity values for a 6-m testing distance are, however, provided on the chart. CONCLUSION: The chart will be useful for examining Arabic speaking patients.

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ArabsEvaluation Studies as TopicHumansLanguageVision TestsVisual AcuityComparative StudyJournal Article

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BibTeXRIS

M M Al-Mufarrej, F A Abo-Hiemed, A O Oduntan. 1996. A new Arabic distance visual acuity chart.. https://doi.org/10.1097/00006324-199601000-00010

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