LEA NUMBERS® Proportional Spaced Distance Charts800701
A LEA NUMBERS® distance eye chart with proportionally spaced (logMAR) lines; line sizes range from 20/80 to 20/8 (6/24 to 6/2.4) equivalent. Also features decimal and LogMAR equivalents. This chart can be used in an illuminated ESV1018 cabinet or hung on the wall.
Dimensions: 10" x 18" (25.4 cm x 45.7 cm).
Testing distance: 20 feet/6 meters.