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When people think of a migraine, what they are generally thinking about is a migraine with aura. But while the majority of migraine sufferers in fact never experience the aura phenomenon, at least fifteen to twenty percent of them do. There’s a misconception that goes even further; that the aura consists only of visual phenomena. But with a classic migraine accompanied by the aura, the symptoms are more properly categorized as neurological, since they can manifest in other ways as well.

The better known visual manifestations of migraine with aura involve phenomena like seeing flashes or zigzags of light, experiencing a blind spot, or losing one side of the visual picture altogether. People might sometimes see parts of an image broken into shards. But other symptoms can involve dizziness, sensitivity to touch, difficulty with pronunciation, or even tingling in the arms that migrates to the face and lips. These aura symptoms serve as a kind of migraine introduction, a warning sign of the migraine itself, which usually arrives about an hour after the aura manifestations fade.

Another type of migraine is sometimes mistaken for one with the aura, which is the ocular or ophthalmic migraine. This has similar visual symptoms to the standard aura, involving blind spots in the vision, as well as zigzagging or brightly flickering light. This type of migraine, though, might occur without a headache at all, as the phenomena originates in the blood vessels of the retina rather than in the occipital cortex, the area of the brain that processes vision (where the aura originates). So there is some debate about whether this is a migraine with aura at all, yet many doctors argue that the otherwise unexplained disturbances in the retinal blood vessels must also surely originate in the occipital cortex.

Even if a person who experiences the migraine with aura and one who has only the visual symptoms are having those symptoms induced by somewhat different means, they are both experiencing a migraine. This means they need the same detective work to find their own migraine triggers, and they both need to try to remove them. And when the migraine comes, in whatever form, they will ultimately depend on the same migraine drugs and treatments. The main difference between them will be whether they’ve got the painful headache. But both lives can be equally disrupted, so the person with only the visual disturbances may not consider themselves to be particularly lucky.

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