LEA SYMBOLS® Massachusetts Distance Folding Chart258800
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A pediatric distance vision chart with LEA SYMBOLS® for screening or testing individuals beginning at age 21/2. Features 50% spaced rectangles (Massachusetts Visual Acuity Test format). The line sizes on one side range from 10/50 to 10/4 (3/15 to 3/1.2) equivalent. The other side has line sizes from 10/100 to 10/63 (3/30 to 3/19) equivalent. The other equivalents featured on this chart are letter size, 20 foot, 6 meter, decimal, and LogMAR. Has a hole for hanging the chart on the wall. Includes a response key and instructions.
Dimensions: 18" x 20" (45.7 cm x 50.8 cm). Folds to 18" x 10" (45.7 cm x 25.4 cm).
Testing distance: 10 feet/3 meters.