ETDRS, 2000 Series Chart 1 Eye Chart

ETDRS, eye chart - 2000 Series Sloan Letter vision chart 1 with proportionally spaced (geometric progression) lines; line sizes range from 20/200 to 20/10 (6/60 to 6/3) equivalent. 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).

13 feet, 4 meter testing distance.