House Brackmann Scale - For Facial Paralysis

Here it is in black and white and full of subtle expression.

Grade
Definition

I
Normal symmetrical function in all areas.
II
Slight weakness noticeable only on close inspection. Complete eye closure with minimal effort. Slight asymmetry of smile with maximal effort. Synkinesis barely noticeable, contracture, or spasm absent.
III
Obvious weakness, but not disfiguring. May not be able to lift eyebrow. Complete eye closure and strong but asymmetrical mouth movement with maximal effort. Obvious, but not disfiguring synkinesis, mass movement or spasm.
IV
Obvious disfiguring weakness. Inability to lift brow. Incomplete eye closure and asymmetry of mouth with maximal effort. Severe synkinesis, mass movement, spasm.
V
Motion barely perceptible. Incomplete eye closure, slight movement corner mouth. Synkinesis, contracture, and spasm usually absent.
VI
No movement, loss of tone, no synkinesis, contracture, or spasm.