ETDRS 2000 Series Chart 3 for 13 Feet/4 Meters500018
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The 2000 Series ETDRS Sloan Letter vision chart 3 features proportionally spaced (geometric progression) lines; line sizes range from 13/131 to 13/6.5 (4/40 to 4/2) equivalent. The other equivalents featured on this chart are letter size, 20 foot, 6 meter, decimal, and LogMar. Part of the Revised ETDRS series with each line being equally difficult.
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: 13 feet/4 meters.