LEA NUMBERS® Proportional Spaced Distance Charts
800701A LEA NUMBERS® distance eye chart with proportionally spaced (logMAR) lines; line sizes range from 20/80 to 20/8 (6/24 to 6/2.4) equivalent, 0.25 to 2.50.
20 feet/6 meters testing distance.
A LEA NUMBERS® distance eye chart with proportionally spaced (logMAR) lines; line sizes range from 20/80 to 20/8 (6/24 to 6/2.4) equivalent, 0.25 to 2.50.
20 feet/6 meters testing distance.
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