Distance vision folding eye chart with Sloan letters optotypes with proportionally spaced (logMAR) lines - line sizes range from 20/200 to 20/8 (6/60 to 6/2.4) equivalent.
Specs: 18" x 18" (45.7 cm x 45.7 cm), folds to 18" x 9" (45.7 cm x 22.9 cm).
Specs: 18" x 18" (45.7 cm x 45.7 cm), folds to 18" x 9" (45.7 cm x 22.9 cm).