Sloan Letter Insta-Line Chart

Sloan Letter Insta-Line Chart

904011
  • $26.00
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Linear-spaced optotypes in the following size equivalents: 20/80, 20/60, 20/50, 20/40 (2 groups of 3 each line size), 20/30 and, 20/20. 4 lines of ease size with 3 optotypes on each line. Includes chart and switch box overlay. 9 in x 14 in (22.9 cm x 35.6 cm).