LEA SYMBOLS® ETDRS Translucent Distance Charts (13 feet/4 meters)

LEA SYMBOLS^® ETDRS,. Proportionally spaced (logMAR) lines; line sizes range from 20/160 to 20/8 (6/48 to 6/2.4) equivalent, 0.90 to 2.50. Includes response key and instructions. Screen printed on styrene plastic for long-lasting durability.

Measurements: 24.5 in x 25.5 in (62cm x 65cm)

Test distance: 13 feet/4 meters

Click here for the 253333 Answer Key.