Arquivos de neuro-psiquiatria
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Migraine is a central nervous system disorder frequently expressed with paroxysmal visual dysfunctions. ⋯ We propose that the aura duration should be accepted as shorter in visually impaired subjects. The changes in aura phenotype observed in our patients may be the result of both cerebral plasticity induced by the visual impairment and/or the lack of visual input per se. Integrity of visual pathways plays a key role in migraine visual aura and photophobia.