This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Neuro Ophthalmology, Subject name: Ophthalmology
Paton's lines are peripapillary folds which result due to 
Select and explain. 
A. Optic neuritis, B. Papilledema, C. Anterior ischemic optic neuropathy, D. CRAO
B: Papilledema
Answer: B: Papilledema 
Explanation: Papilledema leads to CIRCUMFERENTIAL PERIPAPILLARY RETINAL FOLDS known as Paton's Lines.