![]() ![]() Some eye experts believe that retinal migraine results from changes in nerve cells spreading across the retina. More research is needed to fully understand potential causes. There are several mechanisms that have been considered including retinal vasospasm (narrowing of arteries), inflammation around the nerves, and changes within areas of the brain. A 2005 study suggests that more than half of reported recurrent cases of retinal migraine subsequently experienced permanent visual loss in that eye from infarcts, but later studies suggest such loss is a relatively rare side effect.The exact cause of retinal migraine is unknown and controversial. ![]() The visual field data suggests that there is a higher incidence of end arteriolar distribution infraction and a higher incidence of permanent visual field defects in retinal migraine than in clinically manifest cerebral infarctions in migraine with aura. As the true incidence of retinal migraine is unknown, it is uncertain whether there is a higher incidence of permanent neuro retinal injury. In general, the prognosis for retinal migraine is similar to that of migraine headache with typical aura. Medicines used to treat retinal migraines include aspirin, other NSAIDS, and medicines that reduce high blood pressure. ![]() Treatment depends on identifying behavior that triggers migraine such as stress, sleep deprivation, skipped meals, food sensitivities, or specific activities. A normal retina exam is consistent with retinal migraine. The medical exam should rule out any underlying causes, such as blood clot, stroke, pituitary tumor, or detached retina.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |