This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cornea and sclera, Subject name: Ophthalmology
[{'content': 'Topical antifungal used in corneal fungal infection - \nSelect and explain. \nA. Silver sulfadiazine, B. Neomycin, C. Natamycin, D. Griseofulvin', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Topical antifungal eyedrops should be used for long period(6-8 weeks),these include:Natamycin,Amphotericin B and either fluconazole or miconazole. Reference:Comprehensive ophthalmology,AK Khurana,6th edition,page no.107', 'role': 'assistant'}]