What are some features of migraine aura?

Updated: Oct 21, 2019
  • Author: Jasvinder Chawla, MD, MBA; Chief Editor: Helmi L Lutsep, MD  more...
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Features of migraine aura are as follows:

  • May precede or accompany the headache phase or may occur in isolation

  • Usually develops over 5–20 minutes and lasts less than 60 minutes

  • Most commonly visual but can be sensory, motor, or any combination of these

  • Visual symptoms may be positive or negative

  • The most common positive visual phenomenon is the scintillating scotoma, an arc or band of absent vision with a shimmering or glittering zigzag border

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