Developed by Dr. Peter Runge, MD.
The back side of the card includes the chart legend, mm ruler, pupil gage and acuity notations.
40cm / 16in
Logarithmic Progression – Not ETDRS
8M to .2M
1.4 to -0.1
.04 to 1.25
J19- to J1
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Woodstock, Illinois 60098, USA
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