Description
Combined Near Point Continuous Reading and Amlser Grid (on reverse) shows English continuous text with Letter Size, Point Size, Jaeger and Snellen in Feet notations. Line sizes range from 20/200 to 20/25 (6/60 to 6/7.5) equivalent.
Use at 16 inches (40 cm) and card measures 5″ x 7.5″ (12.7 cm x 9 cm) printed on styrene plastic for long lasting durability.