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': 'Methyl alcohol causes blindness by acting on? \nSelect and explain. \nA. Ganglion cells, B. Nerve fibers, C. Rods & Cones, D. Rods only', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ganglion cells REF: khurana 4th ed p. 296 "Methyl alcohol is oxidized into formic acid and formaldehyde and it causes degeneration of ganglion cells of retina resulting in optic atrophy"', 'role': 'assistant'}]