Grade

Description

1

Normal function in all areas

2

Slight weakness noticeable on close inspection, slight synkinesis, at rest normal, motion - slight asymmetry

3

Obvious but non dysfiguring asymmetry, noticeble but not severe synkinesis, complete closure of eye with effort

4

Obvious weakness and/or asymmetry, forehead none, incomplete closure of eye, asymmetry with maximum effort

5

Only barely perceptible motion, severe asymmetry

6

No movement