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': 'Pigment deposition on cornea seen in –a) Chloroquineb) Digoxinc) Ranitidined) Amiodarone \nSelect and explain. \nA. b, B. ad, C. ac, D. ab', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Causing pigment deposition in cornea\ni) Superficial\n\nAmiodarone\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0\xa0\xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0\nChloroquine\xa0\nChlorpromazine\xa0\xa0\nClofazimine\xa0\xa0\xa0\nIndomethacin\nNaproxen\xa0\xa0\xa0\xa0\nSuramine\xa0\nTilorone \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0\xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0\xa0\n\nii) Stromal\n\nPhenothiazines (chlorpromazine)', 'role': 'assistant'}]