<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 62-year-old man presents to the ED complaining of severe eye pain that started a few hours ago. The patient reports that he fell asleep while watching TV on the couch and woke up with right-sided eye pain and blurry vision. His wife drove him to the emergency room. His wife reports that since they arrived the patient has also been complaining of intense nausea. The patient denies fever, headache, or visual floaters. He has a history of hypertension, hyperlipidemia, type II diabetes mellitus, and osteoarthritis. He takes aspirin, lisinopril, metformin, atorvastatin, and over-the-counter ibuprofen. His temperature is 99F 37.2C, blood pressure is 13582 mmHg, and pulse is 78min. 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 non-reactive to light. Ocular eye movements are intact. Vision is 20200 in the right eye and 2040 in the left eye. The left eye exam is unremarkable. Which of the following is the most appropriate initial treatment?? A: Intravenous acetazolamide, B: Iridotomy, C: Retinal photocoagulation, D: Topical epinephrine, E: Topical prednisolone,  <response>: This appears to be a case of acute angle closure glaucoma in the right eye. The key findings are a dilated, fixed pupil, injected conjunctiva, cloudy cornea, severe eye pain, nausea, and vision loss in the affected eye. Choice A, intravenous acetazolamide, is a carbonic anhydrase inhibitor that decreases aqueous humor production and therefore decreases intraocular pressure. This is the most appropriate initial treatment for an acute angle closure glaucoma attack to urgently lower intraocular pressure.Choice B, iridotomy, is a laser procedure that creates an opening in the iris to improve aqueous outflow. This is not an initial treatment. Choice C, retinal photocoagulation, is laser treatment for retinal conditions like diabetic retinopathy. This is unrelated to the acute glaucoma attack.Choice D, topical epinephrine, can decrease aqueous production but is not as effective as systemic acetazolamide for urgently lowering intraocular pressure in an attack. Choice E, topical prednisolone, is a steroid that reduces inflammation but does not address the underlying mechanism or urgently lower intraocular pressure.A: Intravenous acetazolamide 