Light increases the severity of the headache with the blind

Light increases the severity of the headache with the blind

Recent study revealed that the migraine, which affects the blind is exposed to light, the researchers said they studied two groups of blind people, first of blind, just for the sight and non-sensitive to light, and the second is its members, blind, sight medically because of nerve damage, but they can distinguish light without being see with.

According to a study published in the journal "Nature Neuroscience" on its website, the researchers noticed that the first group were not suffering from a headache on exposure to light, in contrast to the second group, said lead researcher Rami Brstein the assumption that the optic nerve a role in the sensitivity of the light is so when the blind vision does not quite convey the presence of optic nerve signal light to the brain.

The Brstein that these cells are named "Milanpson," and the newly discovered is the only one who works for the visually impaired who are able to distinguish light, and the test this assumption on mice researchers were able to track the path signal from cells Almilanpson in the retina via the optic nerve to the brain, where they found a set of neurons that are active during migraine, and the light is insufficient to activate those cells.

Brstein said this explains why patients say that the headaches get worse with exposure to light and hide after that obscures the light from them.

The researchers hope that this research is useful in easing the pain of patients through the discovery of the installation of new drugs to prevent the arrival of the traffic signal to those cells during the headache.