This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Neuro-Ophthalmology, Subject name: Ophthalmology
[{'content': 'Right eye superotemporal quadrantopia, left eye centrocaecal scotoma with headache. Site of lesion is: \nSelect and explain. \nA. Left optic nerve + chiasma, B. Left optic tract + chiasma, C. Right optic nerve + chiasma, D. Right optic tract + chiasma', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. (a) Left optic nerve + chiasmaRef: Kanski 7/e, p. 826-827This type of field defect is seen in meningiomas where the lesion is at the junction of optic nerve and the chiasma. This is called "junctional scotoma of Traquair". (VFD No. 3-Text)', 'role': 'assistant'}]