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At least three of these features: one aura symptom that spreads gradually for more than 5 minutes, two or more aura symptoms that occur one after the other, each symptom lasts 5 to 60 minutes, at ...
The aura is usually followed, after a time varying from minutes to an hour, by the migraine headache. However, the migraine aura can manifest itself in isolation, that is, without being followed by headache. The aura can stay for the duration of the migraine; depending on the type of aura, it can leave the person disoriented and confused.
The effects can last for a few hours to days, or as long as a few weeks. 6. Retinal migraine. Another subtype of migraine with aura, retinal migraine affects the eyes and can cause temporary ...
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)
Scintillating scotoma is a common visual aura that was first described by 19th-century physician Hubert Airy (1838–1903). Originating from the brain, it may precede a migraine headache, but can also occur acephalgically (without headache), also known as visual migraine or migraine aura. [4]
Temporary vision loss "For some people, it goes beyond the visual cortex," Broner says. "They have stroke-like symptoms where the words aren't coming out right or it sounds garbled," she explains.
The psychological impact of macropsia on long-time people who have had the condition since childhood may be greater and lead to severe ego-deficiencies. [2] An alternative interpretation of the condition is that macropsia is a response to biophysiological contraction and has no psychological roots.
The aura phase of migraine can occur with or without a headache. Ocular or retinal migraines happen in the eye, so only affect the vision in that eye, while visual migraines occur in the brain, so affect the vision in both eyes together. Visual migraines result from cortical spreading depression and are also commonly termed scintillating scotoma.
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