Name the labelled Angle Grade - Grading of Angle Width

1. 1. Grade 4 (35-45°): Wide open. The
ciliary body can be visualized without
tilting the lens
2. Grade 3 (25-35°): Open. Scleral spur is
visible
3. Grade 2 (20°): Only trabeculum, but
not scleral spur, can be seen
4. Grade 1 (10°): Very narrow. Only
Schwalbe line and perhaps top of
trabeculum can be identified
5. Grade 0 (10°): Closed due to irido-
corneal contact
Name the labelled Angle Grade