Grading scales for facial nerve function

Grading scales for facial nerve function assess how well the nerve controlling facial movements is working. They typically range from normal function, where the face moves symmetrically, to complete paralysis with no movement. Intermediate grades indicate partial weakness, reduced movement, or muscle tone, helping doctors determine severity and monitor recovery. These scales use descriptions like "normal," "mild weakness," "moderate weakness," and "severe weakness or paralysis," offering a standardized way for clinicians to evaluate and communicate the extent of facial nerve impairment accurately.