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': 'All of the following conditions can be diagnosed on distant direct ophthalmoscopy except: \nSelect and explain. \nA. Opacities in the refractive media, B. A hole in the iris, C. A detached retina, D. A hole in the macula', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. A hole in the macula', 'role': 'assistant'}]