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 soft contact lens is used – \nSelect and explain. \nA. High myopia, B. Astigmatism, C. Presbyopia, D. Keratoconus', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Treatment of choice for high myopia (> - 6D) is contact lens.', 'role': 'assistant'}]