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LEA SYMBOLS® 15 LINE FOLDING CHART WITH 25% AND 100% SPACING, 3 m 52230
The Symbol :
250160
LEA SYMBOLS® 15 LINE FOLDING CHART WITH 25% AND 100% SPACING
Kolor/Wzór
425.00
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Zamówienie telefoniczne: 22 651 82 85
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A LEA SYMBOLS® 15 line folding chart set with 100% spacing on one side and 25% spacing on the other. Great for screening and testing very young children. The chart features pediatric symbols with proportionally spaced lines (ETDRS format) for monocular (testing one eye with the other eye occluded) and binocular (testing both eyes simultaneously) visual acuity testing or screening. The other side has 25% spacing.
Lines sizes range from 10/100 to 10/4 (3/30 to 3/1.2) equivalent. The other equivalents featured on this chart are letter size, 20 foot, 6 meter, decimal, and LogMAR.
Testing distance: 10 feet/3 meters.
Instrukcja użytkowania
Przelicznik skali Decimal/Snellen
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