Researchers in Israel indicate a rest by using sunglasses may help overcome the pain of chronic migraine. It has long been known, the light makes the migraine pain worsen. But until now there has been no explanation why it happened.
The experts from the Beth Israel Deaconess Medical Centre managed to solve the mystery. They identify visual patterns that cause sensitivity to light during migraine, both in the blind as well as in people with normal vision.
"People with migraine can wear sunglasses even at night," said study author Dr. Rami Burstein, professor of anesthesia and critical medicine at BIDMC and Harvard Medical School, as quoted by Nature Science. He added that the most dim light can cause migraine pain worse.
Pain of migraine pain is believed to occur when the meninges, the membrane that lines the brain and central nervous system, susceptible to interference or irritation. Nearly 85 percent of migraine patients become very sensitive to light, or known as photophobia.
From observation revealed that migraine sufferers blind patients underwent photophobia. This makes Burstein and colleagues Rodrigo Noseda, PhD, makes hipotessa that the signal sent from the retina through the optic nerve can trigger intense pain.
For the study, researchers followed two groups of blind people with migraine headaches. The first group of patients experienced total blindness due to retinal eye diseases such as cancer and glaucoma. They can not see the picture or capture light. Hence also, they can not maintain sleep-wake cycles normally.
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