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
Amaurosis fugax does not occur in 
Select and explain. 
A. Papillitis, B. Migraine, C. Giant cell arteritis, D. Venous stasis retinopathy
A: Papillitis
Answer: A: Papillitis 
Explanation: Amaurosis fugax is due to transient failure of retinal circulation.
Occurs in papilledema but not in papillitis.