ETDRS Original Series Chart 1 for 10 feet/3 meters500047
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An Original Series ETDRS eye chart for 10 feet/3 meters testing with proportionally spaced (geometric progression) lines; line sizes range from 10/100 to 10/5 (3/30 to 3/1.5) equivalent. Also features 20 foot, 6 meter, decimal, and LogMAR equivalents. This chart will fit into the ESV3000 ETDRS Clinical Trial Standardized Viewer and the ESC2000 Illuminated ETDRS Clinical Trial Cabinet.
Dimensions: 24.5" x 25.5" (62 cm x 65 cm).
Testing distance: 10 feet/3 meters.