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': 'The early changes in coicosteroid-induced cataract are in the form of: \nSelect and explain. \nA. Central posterior subcapsular lens changes, B. Anterior coical lens changes, C. Nuclear changes, D. Diffuse lens changes', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. Central posterior subcapsular lens changes', 'role': 'assistant'}]