Landolt C ETDRS Clinical Trial Charts for ESV3000 and ESC2000500072
An 8 Position Landolt C clinical trial chart with openings at the up, down, left, and right angles. Each angle is 45º. Features proportionally spaced (geometric progression) lines; line sizes range from 20/200 to 20/10 (6/60 to 6/3) equivalent. Available in 2 scrambled versions for those that are performing repetitive vision testing.
Dimensions: 24.5" x 25.5" (62 cm x 65 cm).
Testing distance: 10 feet/3 meters.