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': 'Foster kennedy syndrome seen with \nSelect and explain. \nA. AION, B. Retinal detachment, C. Frontal lobe tumor, D. Macular edema', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Answer- C. Frontal lobe tumorFoster - kennedy syndrome :- The frontal lobe, pituitary and middle ear tumor such as meningiomata of the oflactor groove are sometimes associated with Ipsilateral pressure atrophy of the optic nerve and contralateral papilloedema.', 'role': 'assistant'}]