Sloan Letter near vision pocket card with line sizes of 20/400 to 20/10 equivalent on one side. Also contains a pupilometer with sizes ranging from 2 to 9.
Continuous text is printed on the reverse side with line sizes 20/80 to 20/16.
Card measures 3.75" x 6.25" (9.5 cm x 15.9 cm) and testing distance is 16" (40 cm).
