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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 ]
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.
Scintillating scotoma is a common visual aura in migraine. [4] Less common, but important because they are sometimes reversible or curable by surgery , are scotomata due to tumors such as those arising from the pituitary gland , which may compress the optic nerve or interfere with its blood supply.
Scintillating scotoma is the most common symptom [11] which usually happens concurrently with Expanding Fortification Spectra. [12] Also frequently reported is monocular blindness. [13] Acephalgic migraines typically do not persist more than a few hours and may last for as little as 15 seconds. [14] On rare occasions, they may continue for up ...
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.
Researchers found that every change in these indicators was linked to an increased stroke risk of 10-19%. Changes to the three caliber indicators in the “fingerprint” were correlated to a 10 ...
Distribution of rods and cones along a line passing through the fovea and the blind spot of a human eye [1]. A blind spot, scotoma, is an obscuration of the visual field.A particular blind spot known as the physiological blind spot, "blind point", or punctum caecum in medical literature, is the place in the visual field that corresponds to the lack of light-detecting photoreceptor cells on the ...
Artist's depiction of scintillating scotoma Example of a scintillating scotoma aura with each dot or line flickering Example of scintillating scotoma showing an obscured/distorted area bordered with colors. An aura sensation can include one or a combination of the following: