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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.
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]
Retinal migraine symptoms tend to be more severe than regular aura symptoms - during a retinal migraine, you may partially lose vision or even go temporarily blind in one eye. In other cases, you ...
People who get migraines might experience a visual cue called an aura before having a migraine, or in the midst of having a migraine. An aura is most commonly a symptom that temporarily affects ...
Photopsia; This is an approximation of the zig-zag visual of a scintillating scotoma as a migraine aura. It moves and vibrates, expanding and slowly fading away over the course of about 20 minutes.
Ocular migraines affect your vision in one or both eyes. Here, experts share ocular migraine symptoms, causes, and treatments.
The aura of migraine is visual in the vast majority of cases, because dysfunction starts from the visual cortex. 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.
Visual symptoms: “Visual aura is the most common,” says Dr. Natbony. “There are different types of visual aura, but it usually is a partial loss of vision that’s surrounded by colors ...
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