Amcon Auto Chart Projector
9
3.1 Conversion from “M” Notation to Snellen Notation
"M" Snellen
Snellen
Notation
in Feet
in Meters
2 20/100
6/30
1.6 20/80 6/24
1.4 20/70 6/21
1.2 20/60 6/18
1.0 20/50 6/15
0.8 20/40 6/12
0.6 20/30 6/9
0.5 20/25
6/7.5
0.4 20/20 6/6
0.2 20/10 6/3
0.1 20/5
6/1.5