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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).