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
[{'content': 'Which of the following is true of dendritic ulcer –a) Caused by Herpes simplex virusb) Topical corticosteroid given suppresses the symptomsc) Oral acyclovir is effective in treatmentd) Topical acyclovir is effective in treatmente) Heals spontaneously \nSelect and explain. \nA. b, B. ad, C. ac, D. ab', 'role': 'user'}, {'content': 'Answer: B \nExplanation: A dendritic ulcer is a typical lesion of Herpetic keratitis. It is treated with topical acyclovir (not oral).\nTopical corticosteroids are contraindicated.\nSpontaneous healing does not occur.', 'role': 'assistant'}]