Acuity range 8m to .20m (20/400, 6/120 to 20/10, 6/3 equiv.)
Measures 9.5 x 16 cm (3.75 x 6.25 in.)
Developed by Dr. Peter Runge, MD.
The back side of the card includes the chart
legend, mm ruler, pupil gage and acuity
notations in the following scales
Near (Times New Roman Printer’s Points)
M letter sizes