This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: DNB 2018, Subject name: Ophthalmology
[{'content': 'Left homonymous hemianopia is seen in which right sided lesion? \nSelect and explain. \nA. Optic tract, B. Optic nerve, C. Optic chiasma, D. Occipital lobe (visual coex)', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Contralateral homonymous hemianopia occurs in retrochiasmal lesions which includes lesions of optic tract, lateral geniculate nucleus,optic radiations. Lesions of the visual pathways at the level of: 1. Optic nerve; 2. Proximal pa of optic nerve; 3. Central chiasma; 4. Lateral chiasma (both sides); 5. Optic tract; 6. Geniculate body; 7. Pa of optic radiations in temporal lobe; 8. Pa of optic radiations in parietal lobe; 9. Optic radiations; 10. Visual coex sparing the macula; 11. visual coex, only macula', 'role': 'assistant'}]