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Standardized adult Sloan Letter Near Vision Card with proportionally spaced (logMAR) lines in ETDRS format. Printed on two sides.
Line sizes range from 20/400 to 20/10 (6/120 to 6/3) equivalent. Attached 16″ (40 cm) measuring cord ensures proper screening distance.
7″ x 9″ (17.8 cm x 22.9 cm).