Sloan Letters Pocket-Sized Near Vision Card (16 inches/40 centimeters)

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This easy-to-use visual acuity near vision
card features Landolt C on one side and
Sloan Letters on the other. Both sides have
optotypes in proportionally spaced (logMAR)
lines with line sizes ranging from 20/400
to 20/10 (6/120 to 6/3) equivalent, 0.05 to
2.00. Card size is 3.75" x 6.25" (9.5 cm x
15.9 cm). Testing distance is 16" (40 cm).
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