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Charts calibrated to test visual acuity at an intermediate distance of 31″ (80 cm) or 26″ (66 cm). Charts are available in 3 different scrambled versions for repetitive testing situations. Sloan Letters optotype with proportionally spaced lines; line sizes range from 20/400 to 20/10 (6/120 to 6/3) equivalent. Notations for Letter Size, Decimal, and logMAR are also on the chart. Chart fits in Quantum Series, Model A+, and Model A illuminated cabinets. Chart size is 9″ x 14″ (22.9 cm x 35.6 cm). 31″ (80 cm) testing distance.
80 cm Chart 1 758400
80 cm Chart 2 758500
80 cm Chart 3 758600