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': "Anterior lenticonus may be associated with: \nSelect and explain. \nA. Alpo's syndrome, B. Lowe's syndrome, C. Marfan's syndrome, D. Homocystinuria", 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. Alpo's syndrome", 'role': 'assistant'}]