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 patient presents to the emergency depament with uniocular diplopia. Examination with oblique illumination shows golden crescent while examination with co-axil illumination show a dark crescent line. Which of the following is the most likely diagnosis: \nSelect and explain. \nA. Lenticonus, B. Coloboma, C. Microspherophakia, D. Ectopia lentis', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. Ectopia lentis', 'role': 'assistant'}]