Aura -

the short duration of neurological symptoms, caus ed by the transition, focal brain dysfunction. Aura immediately p recedes the migraine headache or seizure. Types of Aura: The visu al aura of migraine may act as the flickering scotoma in the form of zigzags, the fortification illusion (teichopsje), amblyopia, a crown or halo around the objects. In addition, there may be a loss of sight, moving image, or to divide the image into several smaller ones. Read the terms of medical concerns at Wikipedia! .