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': 'Psychogenic complaints are all except: \nSelect and explain. \nA. Haloes around light, B. Tired eyes, C. Periodic bluring of vision, D. Constant blinking', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. Haloes around light', 'role': 'assistant'}]