An<unk> is a perceptual disturbance experienced by some with epilepsy or migraine. An epileptic<unk> is a seizure. Epileptic and migraine<unk>  are due to the involvement of specific areas of the brain, which are those that determine the symptoms of the<unk>  Therefore, if the visual area is affected, the<unk> will consist of visual symptoms, while if a sensory one, then sensory symptoms will occur. Epileptic<unk>  are subjective sensory or psychic phenomena due to a focal seizure, i.e. a seizure that originates from that area of the brain responsible for the function which then expresses itself with the symptoms of the<unk>  It is important because it makes it clear where the alteration causing the seizure is located. An epileptic<unk> is in most cases followed by other manifestations of a seizure, for example a convulsion, since the epileptic discharge spreads to other parts of the brain. Rarely it remains isolated.<unk> , when they occur, allow some people who have epilepsy time to prevent injury to themselves and/or others when they lose consciousness.
Aura 
Visual snow
Adina
Persistent aura without infarction
DermAtlas
Retinal migraine
Choroid
Floater