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Visual evoked potentials (VEPs) at onset ((a), (b)) and at two months follow-up ((c), (d)). (a)-(b): Response at 15 (a) and 30 (b) sec showing destructured response, reduced amplitude and prolonged latency on the left and normal response on the right side. (c)-(d): Response at 15 (c) and 30 (d) sec revealing absent response on the left and destructured response with normal amplitude and latency on the right side.
