Examination of the Visual Motor System Diagnosis
What's your diagnosis?
A 69-year-old woman had a long-standing left facial palsy from a Schwannoma of the left facial nerve. (A) At rest, there is no obvious difference in orbicularis tone, and only slight facial asymmetry is apparent (left eyebrow is lower and less wrinkling of the forehead on the left compared to the right). (B) The patient can close both eyes, but when asked to squeeze both eyes shut tightly, the eyelashes are “buried” in the right eye, but not on the weaker left side.