An ophthalmic migraine, also called a visual or eye migraine, will often cause a colorful light show in a person's vision, or a part of the vision may appear blurry. This typically lasts for a few minutes and then disappears without any other symptoms. For some people, an ophthalmic migraine occurs once without additional episodes. However, some people may have them frequently. Understanding some of the causes may help reduce the occurrence.
Vasospasm
An ophthalmic migraine may stem from a spasm or cramping in the vessels behind the eyes, states the Eye Care Office of Ofner & Fleming website. This does not indicate a worrisome condition, but if a person experiences frequent ophthalmic migraines, she should discuss the frequency and symptoms with her eye doctor. In extreme cases, the visual migraines may disrupt normal activities. In such cases, a doctor may recommend medication to help control the spasms in the blood vessels.
Pre-Migraine Indicator
For migraine headache sufferers, an ophthalmic migraine may occur before the headache. This is called a migraine with aura. For recurrent migraine headache sufferers, the precursor vision symptom may prepare them for the onset of a painful migraine. In addition to vision changes, a person may notice tingling in the arms, legs or face and have difficulty speaking, explains MayoClinic.com. The short-term vision changes will not respond to medications or treatment, but migraine medications may help ease the painful headache.
Triggers
Certain factors may increase the likelihood of visual migraines. Changes in hormone levels, such as with pregnancy or menopause, may increase the risk of ophthalmic migraine attacks. Certain foods, medications or lighting also may cause an onset, notes the website All About Vision. If frequent attacks occur, a person may need to keep track of environmental situations and what she eats and drinks in order to determine if particular factors contribute to the condition.
