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: Medicine
Giant cell aeritis causes which of the following in the eye - 
Select and explain. 
A. Episcleritis, B. Anterior ischemic optic neuropathy, C. Neuroparalytic keratitis, D. Band keratitis
B: Anterior ischemic optic neuropathy
Answer: B: Anterior ischemic optic neuropathy 
Explanation: Answer- B. Anterior ischemic optic neuropathyCauses of vision lossAnterior ischemic optic neuropathy.Central retinal aery occulusion.Posterior ischemic optic neuropathy.Branch vetinal aery occlusionCerebral ischemia