LEA NUMBERS® ETDRS Translucent Chart271400
An adult LEA NUMBERS® ETDRS chart for the ETDRS Illuminated light boxes. Fits all existing ETDRS cabinets, including both the ESV3000 and ESC2000. This chart features optotypes in proportionally spaced (logMAR) lines; lines range from 20/200 to 20/8 (6/60 to 6/2.4) equivalent, 0.10 to 2.50.
Test distance: 10 feet/3 meters.