This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Diseases of Cornea, Subject name: Ophthalmology
[{'content': 'Combination of fixed dilated pupil with iris atrophy and secondary glaucoma following penetrating keratoplasty is: \nSelect and explain. \nA. Benedicts syndrome, B. Possner Scholsman Syndrome, C. Urrets Zavalia Syndrome, D. Kauffman', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Typical symptoms of Urrets zavalia, after corneal transplant in keratoconus surgery. URRETS ZAVALIA SYNDROME * Fixed dilated pupil unresponsive to pilocarpine * Iris atrophy due to iris ischemia Multiple posterior synechiae * Seen in post corneal transplantation in Keratoconus * Elevated IOP a risk factor Use of mydriatics is also considered as a risk factor', 'role': 'assistant'}]