• LEA NUMBERS® Book with Crowding Bars, 3 m 52237

The Symbol : 254400

LEA NUMBERS® Book with Crowding Bars

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Handheld vision test with LEA NUMBERS® numbers optotype features 50% spaced contour interaction bars to provide single optotype acuity with the proper crowding effect. Optotype line sizes from 20/100 to 20/20 (6/30 to 6/6) equivalent. This book can also be used for vision testing adults or geriatric patients. 17 pages. 4" x 4" (10.2 cm x 10.2 cm).

10 feet, 3 meters testing distance

PDF DocumentInstrukcja użytkowania

PDF DocumentPrzelicznik skali Decimal/Snellen

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