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
All among the following are true about Papilledema EXCEPT : 
Select and explain. 
A. Earliest sign is enlargement of blind spot, B. Circumferential folds of retinal nerve fiber layer, C. Atrophic papilledema occurs 6-9 months after initial attack, D. Bilateral non inflammatory disc edema with increased ICT
A: Earliest sign is enlargement of blind spot
Answer: A: Earliest sign is enlargement of blind spot 
Explanation: Blurring of margins of optic disc is the earliest sign of papilledema. Papilledema B/L non inflammatory disc edema with increased ICT. |sed ICT - disturbance in axoplasmic flow. Dilation & touosity of vessels. Elevation of disc. Headache, morning stiffness, projectile vomiting. Enlargement of blind spot. Paton's line (circumferential folds of retinal nerve fiber layer ). Pseudotumor cerebri: Raised ICT a/w papilledema, seen in patients without any intracranial lesion. Atrophic papilledema occurs 6-9 months after initial attack (like features of optic atrophy). Papilledema Normal Optic disc