A 50-year-old woman has diminished sensation in the left part of her face and eyelid. She feels no pain in her left cornea and has no tearing in that eye. A lesion in which of the following areas is most likely to cause these findings?

Question

Quizplus · Accepted Answer

The symptoms described are indicative of an issue with the ophthalmic division of the left trigeminal nerve (CN V1), which is responsible for sensation in the face, including the cornea, and contributes to the lacrimation reflex. The diminished sensation in the left part of her face and eyelid, along with no pain in her left cornea and no tearing in that eye, points to a problem with this specific division of the trigeminal nerve.

A 50-Year-Old Woman Has Diminished Sensation in the Left Part