This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Ophthalmology
[{'content': 'A patient presented with pain in left eye associated with visual distrubance, also a history of blunt trauma to eye 4 month back, first investingation of choice is \nSelect and explain. \nA. Introcular tension, B. Ophthalmoscopy, C. Perimetry, D. Ultrasound', 'role': 'user'}, {'content': 'Answer: A \nExplanation: A i.e. Intraocular tension This is a case of angle recession glaucoma', 'role': 'assistant'}]