2010-01-11 Why Bright Light Worsens Migraine Headache Pain

http://www.foxnews.com/story/0,2933,582755,00.html

When a migraine hits, many sufferers hide out in a dark room, away from the painful light. Now scientists think they know why light makes migraines worse.

New research on humans and rats has revealed a visual pathway in the brain that underlies this light sensitivity during migraines in blind individuals and in individuals with normal eyesight.

"Clinically, this research sets the stage for identifying ways to block the pathway so that migraine patients can endure light without pain," said Rami Burstein, a professor of anesthesia and critical care medicine at Beth Israel Deaconess Medical Center and Harvard Medical School in Boston, Mass.(Read entire article)

2010-01-12 Why Light Worsens Migraine Headaches - Blind Patients Help Scientists Understand the Link Between Light and Headaches

http://www.webmd.com/migraines-headaches/news/20100112/why-light-worsens-migraine-headaches

Researchers in Boston say they’ve gained new insight into why light makes migraine headaches so painful.

The culprit, they say, is a new pathway that underlies sensitivity to light during migraine episodes in blind people and people with normal eyesight. Scientists at Beth Deaconess Medical Center report their findings in the online journal Nature Neuroscience. (Read entire article)