11/9/2023 0 Comments Rainbow kaleidoscope definition![]() ![]() The authors suggest that this structural difference may make the visual cortex on the affected side significantly more sensitive to neuronal activity. According to the authors, the affected and unaffected sides of the brain showed noticeable differences in the thickness of certain areas of the cortex, or gray matter. Around 20% of people with migraine experience some type of aura.Ĭurrent scientific evidence suggests that ocular migraine occurs due to structural abnormalities in the visual cortex.Ī 2015 study examined the MRI data of people who have one-sided ocular migraine. Migraine and severe headaches affect approximately 1 in 6 adults in the United States. Migraine episodes with visual symptoms are called visual, or ocular, migraines. However, more serious causes can also bring on this symptom, such as retinal migraine or a stroke, as the following sections discuss. Most often, migraine causes kaleidoscope vision. Kaleidoscope vision is a type of altered visual aura. People who have altered auras might see things move in waves, or objects might appear to them as abnormally large or small. Instead, it changes the way a person views the world around them.
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