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': 'In buphthalmos, lens is – \nSelect and explain. \nA. Anteroposterior flat, B. Small, C. Large, D. None of the above', 'role': 'user'}, {'content': 'Answer: A \nExplanation: The lens does not participate in the general enlargement of eye, therefore its size is normal. But it is flattened and displaced backward owing to the expansion of ciliary region and stretching of the suspensory ligament.', 'role': 'assistant'}]