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 Keratoconus, all are seen except: \nSelect and explain. \nA. Munson's sign, B. Thinning of cornea in center, C. Distoion of corneal reflex at center, D. Hypermetropic refractive error fond", 'role': 'user'}, {'content': 'Answer: D \nExplanation: D i.e. Hypermetropic refractory error found', 'role': 'assistant'}]