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Designed as a rapid test for checking current
prescription and accuracy of the add to be
prescribed. Contains words on one side and
numbers on the reverse. Line increments in
logMAR units in Snellen equivalent. Acuity
range 8.0M to .4M (20/400 to 20/20).
Measures 3.5″ x 6.5″ (9.5 cm x 16 cm)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 926000