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
Which of the following is DOC for optic neuritis? 
Select and explain. 
A. Oral steroids, B. I.v steroids, C. Topical steroids, D. Immunosuppressant
B: I.v steroids
Answer: B: I.v steroids 
Explanation: i.v. Methyl prednisolone is DOC for optic neuritis. Treatment of Optic Neuritis i.v. Methyl prednisolone is given in optic neuritis. Oral steroids not to be given initially. CHAMPS TRIAL - Interferon b-1a. Few studies in AIIMS show i.v. Dexmethasone is equally effective for treatment.