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 clinical aniridia all of the following are true except: \nSelect and explain. \nA. Iris is completely absent, B. Usually familial condition, C. May be associated with congenital glaucoma, D. Ciliary processes may be visible', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. Iris is completely absent', 'role': 'assistant'}]