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': 'Destruction of right labyrinth causes nystagmus to: \nSelect and explain. \nA. Right side, B. Left side, C. Pendular nystagmus, D. No nystagmus', 'role': 'user'}, {'content': 'Answer: B \nExplanation: In destructive lesions eg. trauma to labyrinth, the nystagmus is towards the opposite side.In irritative lesions eg. serous labyrinthitis, fistula of labyrinth, the nystagmus is towards ipsilateral side.', 'role': 'assistant'}]