This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Anti-Viral, Subject name: Pharmacology
[{'content': 'Gancyclovir is used intravitreallyfor treatment of- \nSelect and explain. \nA. Influenza, B. Rhinovirus, C. HZV, D. CMV retinitis', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e,, CMV retinitis o Some drugs which are used intravitrealfy areBevacizumab : inhibits VEGF action; used in metastatic colorectal cancer; off label use as intravitreous injection to slow progression of neovascular macular degeneration.Foscarnet: CMV retinitis.Gattcyclovir : CMV retinitis.Ranibizumab : slow macular degeneration.Pegaptanib : neovascular age related macular degeneration.", 'role': 'assistant'}]