This double-sided near vision card combines proportionally-spaced lines on one and 50% spaced rectangle (Massachusetts Visual Acuity Test Format) on the other. Attached 16-inch (40 cm) measuring cord ensures proper screening distance. Includes flash cards and instructions. 8" x 10" (20.3 cm x 25.4 cm)
16-inch, 40 cm testing distance
Przelicznik skali Decimal/Snellen
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