Proportionally spaced (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 ESV1200, ESV1500, or a Model A+ illuminated cabinet. Includes response key and training cards.
10 feet/3 meters testing distance
