Sloan Letter Proportionally Spaced Distance Chart

A Sloan Letter translucent distance eye chart with proportionally spaced (logMAR) lines; line sizes range from 20/80 to 20/10. This chart can either be wall mounted or used in an ESV1200, ESV1500, or a Model A+ illuminated cabinet. Lines are labeled with 20 ft notations only.

Dimensions: 9" x 14" (22.9 cm x 35.6 cm).

Testing distance: 20 feet/6 meters.