LEA SYMBOLS® 15-Line Translucent ETDRS-Style Distance Charts250300
A LEA SYMBOLS® distance visual acuity chart for an ETDRS Illuminator Cabinet like the ESV3000 or ESC2000. Features proportionally spaced (logMAR); line sizes range from 10/100 to 10/4 (3/30 to 3/1.2) equivalent. The other equivalents featured on this chart are letter size, 20 foot, 6 meter, decimal, and LogMAR. A response key and instructions are included.
This chart is screen printed on .010 thick styrene plastic making the chart more rigid. UV coated for long-lasting durability.
Dimensions: 24.5" x 25.5" (62 cm x 65 cm).
Testing distance: 10 feet/3 meters.Click here for the 250300 Answer Key.