This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: AIIMS 2019, Subject name: Ophthalmology
A patient with hypeension and diabetes presents with blurred vision. Fluorescein angiography shows 
Select and explain. 
A. Macular edema, B. Sub macular edema, C. Papilledema, D. Pre macular hemorrhage
A: Macular edema
Answer: A: Macular edema 
Explanation: M/C cause of loss of vision in a diabetic = CYSTOID MACULAR EDEMA. PETALLOID APPERENCE