Chart(Distance): ESV3000™ and ESC2000™ - ETDRS - Landolt "C" (13ft/4m)

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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 e quivalents on this chart are letter size, 20 foot, 6 meter, decimal, and LogMAR. Features optotypes opening at the up, down, left, & right positions only. ESV3000™ ETDRS Clinical Trial Standardized Viewer and ESC2000™ Illuminated ETDRS Clinical Trial Cabinet compatible. Dimensions: Height 24.5" x Width 25.5" (62 cm x 65 cm). Testing distance: 10 feet/3 meters. Show more