Visual Migraine

Some people with visual impairments get blurred vision, and much worse, visual migraine: a condition that deals with altered vision. In visual migraine there is a temporary visual disturbance caused by a vascular spasm in the brain, usually accompanied by headache. This vascular spasm occurs when there is a decrease of blood flow to the occipital cortex , or the part of the brain related to vision. Visual migraine is usually caused by stress and prolonged periods of exposure to bright lights.

Symptoms of visual migraine may include among other:

• seeing a shimmering light
• distorted or blurred vision
• pulsating and flashing lights
  

The headache experienced with this kind of migraine can be excruciating. Nausea and vomiting are also experienced during a visual migraine attack. A typical attack of visual migraine lasts for 15-20 minutes before fading away.