LEA SYMBOLS distance visual acuity test for the ETDRS Illuminator Cabinet. Proportionally spaced (logMAR); line sizes range from 20/200 to 20/8 (6/60 to 6/2.4) equivalent, 0.10 to 2.50. Includes response key and instructions. Chart measures 24.5" x 25.5" (62 cm x 65 cm). 10 feet/3 meters testing distance.
Trustpilot
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