Landolt C ETDRS Clinical Trial Chart for ESV3000 and ESC2000500060
A Landolt C clinical trial ETDRS vision chart with proportionally spaced (geometric progression) lines; line sizes range from 10/100 to 10/5 (3/30 to 3/1.5) equivalent. The other equivalents on this chart are letter size, 20 foot, 6 meter, decimal, and LogMAR. Features optotypes opening at the up, down, left, & right positions only.
Dimensions: Height 24.5" x Width 25.5" (62 cm x 65 cm).
Testing distance: 10 feet/3 meters.