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1. Black and white zigzag lines in my vision how to#
2. Black and white zigzag lines in my vision cracked#

Painless ocular migraines can appear suddenly, creating the sensation of looking through a cracked window. Instead, these visual symptoms occur as a result of the migraine “activity” in the visual cortex of the brain located in the back of the skull. The vision symptoms accompanying painless ocular migraines are not related directly to the eyes. This is because processes that trigger ophthalmic migraines are poorly understood.

Black and white zigzag lines in my vision how to#

Unfortunately, a visit to the eye doctor may produce few answers in terms of how to treat or prevent ocular migraines. What Should I Do if I Have an Ocular Migraine? Still, always consult your eye doctor when you have unusual vision symptoms, because it’s possible that you have another condition requiring treatment, such as a detached retina, which should be checked out immediately. Usually they are painless, cause no permanent visual or brain damage and do not require treatment. Generally, ocular migraines are considered harmless. This entire migraine phenomenon may end in only a few minutes, but usually lasts as long as about 20-30 minutes. The blind spot usually enlarges and may move across your field of vision. Typically you will see a small, enlarging blind spot (scotoma) in your central vision with bright, flickering lights (scintillations) or a shimmering zig-zag line (metamorphopsia) inside the blind spot. People with ocular migraines can have a variety of visual symptoms. Resulting ophthalmic or ocular migraines commonly can produce visual symptoms even without a headache. One result of these triggers may be an intense headache that, if untreated, can last for hours or even days.ĭuring migraine processes, changes also may take place in blood flow to the area of the brain responsible for vision (visual cortex or occipital lobe). Migraines can be produced by the body’s neurological responses to certain triggers such as hormonal changes, flashing lights or chemicals in foods or medications. Because most laypeople understand the term better, this article refers to the condition as “ocular migraine.” These visual problems associated with migraines technically are known as ophthalmic migraines, but are much more commonly (though incorrectly) called ocular migraines. Ophthalmic (eye) migraines are quite common and often painless, although the solo term “migraine” usually brings to mind a severe type of headache.īut with eye-related migraines, visual disturbances with or without headache pain also can accompany migraine processes thought to be related to changes in blood flow in the brain.