9/1/2023 0 Comments Seeing zigzag lines![]() ![]() nitrates, such as those in deli meats and many prepared meals.Some people are more likely to have a migraine episode or headache after experiencing specific triggers.Įveryone’s migraine triggers are different, but common ones include: In females, migraine episodes may also correlate with the hormonal changes that take place during the menstrual cycle. ![]() According to the Migraine Research Foundation, 90% of people with the condition have a family history of migraine. Migraine also appears to have a link with a person’s genes. Migraine aura may develop because of abnormal electrical activity in the outer surface of the brain, or cortex, which slowly spreads like a wave over the visual portion of the brain. One theory is that they are due to inflammation in the brain, which can cause blood vessels to swell and put pressure on nerves, causing pain. Researchers are not sure exactly why migraine headaches or episodes occur. Retinal migraine causes headaches as well as severe blind spots or blindness in one eye that lasts for less than 1 hour. Aura generally sets in before the migraine becomes painful. It typically develops shortly before or during a migraine headache and is the second of a migraine’s four stages. However, the nonvisual symptoms, such as intense pain, may last from several hours to a few days.Īura tends to last between 10 and 30 minutes. Visual symptoms due to ocular migraine can be scary and disabling, but most are short lived. Silent migraine usually causes some of the visual symptoms of migraine but no head pain. ![]()
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