A 56-year-old man with hypertension presented with 2 weeks of acute ptosis in the left upper eyelid. Three weeks prior, the patient had noted severe left-sided facial pain. He denied any diplopia, decreased vision, or recent trauma. The patient had previously been evaluated by his primary care physician and referred to a neuroophthalmologist. During the course of the workup, the patient had undergone computed tomography (CT) of the head and chest, magnetic resonance imaging (MRI) of the brain, and carotid duplex ultrasonography. Following a workup with unremarkable results, the patient presented to the Bascom Palmer emergency department for a second opinion.

https://jamanetwork.com/journals/jamaophthalmology/article-abstract/2768201