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8 Position Landolt C chart with C openings at up, down, left, right and each 45º angle. chart with proportionally spaced (geometric progression) lines; line sizes range from 20/200 to 20/10 (6/60 to 6/3) equivalent. Landolt Tumbling C chart is available in 2 scrambled version for repetitive vision testing. 20/200 to 20/10 (6/60 to 6/3) equivalent, 0.10 to 2.00.
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