"2000" Series ETDRS Translucent Distance Charts for 6.5 feet/2 meters
2000 Series ETDRS Distance Chart for 6.5'/2m testing distance. Optotypes are proportionally spaced (logMAR) lines line sizes range from 20/200 to 20/10 (6/60 to 6/3) equivalent 0.10 to 2.00. Revised version of the original ETDRS series based on more recent research. Revised version of the original ETDRS series with each line being equally difficult. Chart measures 24.5" x 25.5" (62 cm x 65 cm)