This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Ophthalmology
[{'content': 'Axenfeld anomaly is seen in glaucoma associated with \nSelect and explain. \nA. Aniridia, B. Phakomatosis, C. Iridocorneal dysgenesis, D. Ectopia lentis', 'role': 'user'}, {'content': "Answer: C \nExplanation: a) Microdontia; b.Slit pupil and iris atrophy; c.Corectopia with iris atrophy; d,e.Posterior embryotoxon; f.Broad peripheral anterior synechiae. Axenfeld anomaly is seen in glaucoma associated with iridocorneal dysgenesis. It is a posterior embryotoxon characterised by prominent Schwalbe's ring. Ref: Comprehensive Ophthalmology, A. K. Khurana, 4th edition, p214.", 'role': 'assistant'}]