Table 1: Bangerter Occlusion Foils –Grading of Foil and Expected Visual Acuity

Density of Foil	Snellen Visual Acuity
1.0	20/20
0.8	20/25
0.6	20/30
0.4	20/40
0.3	20/80
0.2	20/100
0.1	20/200
<0.1	<20/300
LP	Light Perception
00	No light