A study published in the February 2010 issue of Nature Neuroscience showed that even blind migraine sufferers experienced a painful aversion to bright light. The study’s authors believe that migraines are related to the part of the brain that identifies light, which is different from the area of the brain that allows us to see. The blind people in the study could identify light, but no other images. Those who couldn’t detect light at all didn’t experience migraine light sensitivity.

- Migraine sensitivity to light symptoms | Migraine.com

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