![]() This immediately begins to cause a gradual loss of visionĪnd overtime can lead to more serious retinal conditions and blindness. 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.A retinal tear is when part of the retina – the light-sensitive layer of tissue in the back of your eye responsible for vision – is pulled away and separates from the outer layer of the eye. 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. People with an underlying disease ( lupus, hardening of the arteries, sickle cell disease, epilepsy, antiphospholipid syndrome, and giant cell arteritis).People with a personal or family history of migraines or other headaches.Retinal migraine tends to be more common in: Usually there are no abnormalities within the eye and permanent damage to the eye is rare. Īfterwards, the blood vessels relax, blood flow resumes and sight returns. Retinal migraine is caused by the blood vessels (that leads to the eye) suddenly narrowing ( constricting), reducing blood flow to the eye, which causes aura in vision. Unlike in retinal migraine, a scintillating scotoma involves repeated bouts of temporary diminished vision or blindness and affects vision from both eyes, upon which patients may see flashes of light, zigzagging patterns, blind spots, or shimmering spots or stars. Retinal migraine is a different disease than scintillating scotoma, which is a visual anomaly caused by spreading depression in the occipital cortex at the back of the brain, not in the eyes nor any component thereof. It may be difficult to read and dangerous to drive a vehicle while retinal migraine symptoms are present. After each episode, normal vision returns. Visual loss tends to affect the entire monocular visual field of one eye, not both eyes. During some episodes, the visual loss may occur with no headache and at other times throbbing headache on the same side of the head as the visual loss may occur, accompanied by severe light sensitivity and/or nausea. Retinal migraine is associated with transient monocular visual loss ( scotoma) in one eye lasting less than one hour. Visual migraines result from cortical spreading depression and are also commonly termed scintillating scotoma. Ocular or retinal migraines happen in the eye, so only affect the vision in that eye, while visual migraines occur in the brain, so affect the vision in both eyes together. The aura phase of migraine can occur with or without a headache. The terms "retinal migraine" and "ocular migraine" are often confused with " visual migraine", which is a far-more-common symptom of vision loss, resulting from the aura phase of migraine with aura. It is caused by ischaemia or vascular spasm in or behind the affected eye. Retinal migraine is a retinal disease often accompanied by migraine headache and typically affects only one eye. ICHD classification and diagnosis of migraine.Stress, smoking, high blood pressure, oral contraceptive pill, exercise, bending over, high altitude, dehydration, low blood sugar, excessive heat ![]()
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