| Grade |
Description |
| 0 |
No adhesion |
| 1 |
One adhesion band, no vessel, easily separated |
| 2 |
Two thin adhesion bands, no vessel, easily separated |
| 3 |
Three thin adhesion bands, no vessel, easily separated |
| 4 |
More than three thin adhesion bands, easily separated with no vessel or defused adhesion bands with vessels |
|
