This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Anatomy, Development and clinical examination, Subject name: Ophthalmology
[{'content': 'NSAID used commonly for topical ocular use is \nSelect and explain. \nA. Ibuprofen, B. Aceclofenac, C. Ketorolac, D. Acetaminophen', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Commonly used topical ocular NSAIDS Ketorolac Flurbiprofen Diclofenac sodium Reference: AK Khurana Comprehensive Ophthalmology, 6th edition, pg no. 454 - 455', 'role': 'assistant'}]