Xe`roph*thal"mi*a\, n. [L., fr. Gr. ?; ? dry + ? the eye. See Ophthalmia.] (Med.) An abnormal dryness of the eyeball produced usually by long-continued inflammation and subsequent atrophy of the conjunctiva.
I apologize to nerdfury it ends up he was really sick with a killer headache. It is partially my fault also, every Friday when he sees my words, he rubs his eyes in disbelief as to how great my words are! In fact, he has done this so often, his eyes are dry and irritated, he has developed xerophthalmia and this is causing bad headaches.