(Jill Seladi-Schulman/ Healthline) — An aura is a collection of symptoms that occur before or along with a migraine attack. Aura can cause disturbances in your vision, sensation, or speech.
The American Migraine Foundation estimates that between 25 and 30 percent of people with migraine experience aura.
Because an aura can begin before a migraine attack starts, it can often be a warning sign that one is coming.
An aura typically begins about an hour before migraine pain starts and lasts less than 60 minutes. Not all migraine attacks involve an aura.
It’s possible for an aura to occur without a migraine attack. This is called silent migraine. Although the migraine pain doesn’t occur, the aura symptoms themselves can still be disruptive to daily activities.
Ocular migraine, a type of migraine attack characterized by visual symptoms, can sometimes occur without pain. Migraine with aura and retinal migraine are sometimes considered types of ocular migraine.
Visual aura is the most common type of aura. Some symptoms you may experience during a visual aura include. (…)