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Proportionally spaced (logMAR) lines; line sizes range from 20/125 to 20/8 (6/38 to 6/2.4) equivalent, 0.16 to 2.50. Set includes response key and instructions.
Set 250400
Chart Only 250401
10′ and 20′ notations only (not shown)
Set 250411
Chart Only 250412
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