LEA SYMBOLS® Proportional Distance Charts800724
LEA SYMBOLS® pediatric eye chart with proportionally spaced (logMAR) lines; line sizes range from 20/80 to 20/8 (6/24 to 6/2.4). This chart can be used in an illuminated ESV1018 cabinet or hung on the wall. Chart Set includes response key and instructions along with the chart.
Measurements: 10 in x 18 in (25.4 cm x 45.7 cm)
Test distance: 20 feet/6 meters
Chart Set includes response key, and instructions along with the chart.