Migraine Aura

Many times, migraine headaches are preceded by some sort of visual disturbance known as an aura. They usually occur anywhere minutes to hours before the pain of a migraine starts. These symptoms typically last for anywhere from 10 to 25 minutes. The aura may occur without actual pain, and in these cases it is known as a migraine equivalent.

Visual changes can occur in one or both eyes. They can include one or more of the following:

• Zigzag lines
• Flashing lights
• Visual hallucinations
• Temporary blind spots (scotomas)
• Light sensitivity
• Blurred vision
• Eye pain

A migraine may not be accompanied by a classic aura, but a number of other symptoms may signal the onset of a migraine headache.

• Loss of appetite
• Nausea
• Vomiting
• Chills
• Increased urination
• Increased sweating
• Swelling of the face
• Irritability
• Fatigue

_Sources:

Kantor, Daniel. Migraine with Aura. U.S. National Library of Medicine and the National Institutes of Health. Updated 11/21/2006. Retrieved: September 7, 2008. http://www.nlm.nih.gov/medlineplus/ency/article/000721.htm

Olesen, J. “Understanding the Biologic Basis of Migraine.” NEJM. 22 Dec, 1994.