Question of the Week
For June 20, 2017
A 66-year-old man with no past medical problems presents to the emergency department with sudden pain in his left eye and blurring of vision that started while he was watching a movie. He has vomited twice.
He has 20/40 vision in the right eye and 20/400 vision in the left eye. Examination reveals a minimally reactive pupil in the left eye and injection of the conjunctiva.
Which one of the following diagnoses is most likely?