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Scintillating scotomas are most commonly caused by cortical spreading depression, a pattern of changes in the behavior of nerves in the brain during a migraine. Migraines, in turn, may be caused by genetic influences and hormones.
Migraine (UK: / ˈ m iː ɡ r eɪ n /, US: / ˈ m aɪ-/) is a genetically influenced complex neurological disorder characterized by episodes of moderate-to-severe headache, most often unilateral and generally associated with nausea and light and sound sensitivity.
Retinal migraine is a retinal disease often accompanied by migraine headache and typically affects only one eye. It is caused by ischaemia or vascular spasm in or behind the affected eye.
Migraines can include headaches but may also include visual disturbances, dizziness, and other neurological symptoms during an episode. Migraineurs are more likely to experience tinnitus.
Experts explain proven and new rescue therapies and migraine prevention protocols as well as which patients should and shouldn't try them.
Migraines are characterized by severe head pain that pulses or throbs, often on one side of the head. Learn more about symptoms and signs of migraines, plus what causes migraines and how to get...