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
Which of following is not a feature in diabetic retinopathy on fundus examination: 
Select and explain. 
A. Microaneurysms, B. Retinal hemorrhages, C. Aeriolar dilatation, D. Neovascularisation
C: Aeriolar dilatation
Answer: C: Aeriolar dilatation 
Explanation: 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