E and C Charts, ETDRS, Translucent Distance Charts500037
ETDRS, E and C Charts, vision chart with proportionally spaced (logMAR) translucent chart for ESV3000. Line sizes range from 20/200 to 20/10 (6/60 to 6/3) equivalent, 0.10 to 2.00.
E and C Charts, openings are found at the up, down, left & right position only.
13 feet/ 4 meter testing distance.