A LEA SYMBOLS® distance chart with proportionally spaced optotypes (logMAR); line sizes range from 20/125 to 20/8 (6/38 to 6/2.4) equivalent, 0.16 to 2.50. This chart can either be wall mounted or used in an illuminated cabinet. Set includes the chart, a response key, and instructions.
Testing distance: 10 feet/3 meters.
