Please read description carefully.
Do not base your order on the picture presented.
Translucent distance visual acuity chart with both Sloan Letters and Astigmatic Wheel.
Sloan Letters optotypes are linear-spaced lines; line sizes range from 20/40 to 20/16 (6/12 to 6/4.8).
This combination chart can be used in Good-Lite's illuminated ESV1018 or hung on a white wall.
Chart size measures 10"x18" (25.4 cm x 45.7 cm).
20 feet, 6 meters testing distance.