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': 'Which of following is not a feature in diabetic retinopathy on fundus examination: \nSelect and explain. \nA. Microaneurysms, B. Retinal hemorrhages, C. Aeriolar dilatation, D. Neovascularisation', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Aeriolar dilation does not occur in diabetic retinopathy. Ref: Clinical Ophthalmology By Kanski, 3rd Edition, Page 359 and 4th Edition, Pages 465-6 ; Comprehensive Ophthalmology By A K Khurana, 4th Edition, Page 259-62', 'role': 'assistant'}]