by 
The Curious Bag
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Some people affected by migraines experience visual disturbances either right before or during the onset of a migraine. This condition is known as a visual migraine or migraine with aura.
Symptoms
Typically, a personal with a visual migraine will experience blind spots or see flashes of light or zigzagging patterns. These visual disturbances usually begin in the center of the field of vision before spreading out. Numbness or tingling in parts of the body as well as confusion or speech problems may also accompany these types of migraines. Visual migraines may also trigger severe head pain that is often one-sided. Sensitivity to light and touch as well as nausea and vomiting also are symptoms.
Duration
A visual migraine may begin up to an hour before the onset of head pain. The condition typically lasts up to 30 minutes. In rare cases, the visual symptoms occur without head pain.
Triggers
Stress, bright lights, fatigue, head trauma, hunger, some medications as well as certain foods, such as chocolate, may trigger visual migraines.
Risk Groups
Anyone can get a visual migraine, but they are three times more common in women or people with a family history of the condition.
Treatment
Visual migraines can be treated with prescription medications.
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