Review Question - QID 211021

A 62-year-old man presents to the ED with eye pain that started a few hours ago. The patient fell asleep while watching TV on the couch and woke up with right-sided eye pain and blurry vision with nausea. The patient denies fever, headache, or visual floaters. He has a history of hypertension, hyperlipidemia, type 2 diabetes mellitus, and osteoarthritis. He takes aspirin, lisinopril, metformin, atorvastatin, and over-the-counter ibuprofen. His temperature is 98.7°F (37°C), blood pressure is 135/82 mmHg, pulse is 78/min, respirations are 12/min, and oxygen saturation is 98% on room air. On physical examination, the right eye is firm with an injected conjunctiva and a mildly cloudy cornea. The pupil is dilated at 6 mm and is minimally reactive to light. Ocular eye movements are intact. Vision is 20/200 in the right eye and 20/40 in the left eye. The left eye exam is unremarkable. Which of the following is the most appropriate initial treatment?