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Photopsia is the presence of perceived flashes of light in the field of vision. It is most commonly associated with: [4] posterior vitreous detachment; migraine aura (ocular migraine / retinal migraine) migraine aura without headache; scintillating scotoma; retinal break or detachment; occipital lobe infarction (similar to occipital stroke)
Rapid flickers in intensity of light may trigger or aggravate photosensitive epilepsy, epileptic seizure, or migraine headaches. [4] Conditions that may include sensitivity to light include vertigo and chronic fatigue syndrome. Controlled application of artificial light can be used in a program of light therapy to treat some disorders.
For people with migraines, heat can be a double-edged sword: Sometimes it’s the trigger, and other times, it’s the relief. Understanding the difference is key to managing symptoms effectively ...
Experts note that a single weather trigger—such as a temperature drop or storm—might not be enough to initiate a migraine on its own, but can lead to a migraine when combined with other ...
8. Menstrual Migraine. Menstrual migraine refers to migraine attacks that occur during menstruation. They tend to be severe and last longer than other types of migraines, and while women can also ...
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. People with migraines often self-report triggers for migraines involving stress or foods, [9] or bright lights. [10]