Abstract
To explore the possible relationship between Paracentral Acute Middle Maculopathy (PAMM) and migraine. Paracentral acute middle maculopathy is a recently described clinical and optical coherence tomography entity involving infarction of the inner nuclear layer secondary to deep retinal capillary ischemia. It presents as a painless paracentral scotoma and often results in permanent visual deficits. Migraine, especially migraine with aura, has been shown to cause structural changes in the retinal microvasculature and to be a risk factor for retinal ischemia. A case report and review of the literature. A 39-year-old woman with migraine with visual aura presented with a discrete, monocular, painless "buffalo-shaped" paracentral scotoma, which started during a period of frequent typical visual auras. Her exam and optical coherence tomography were consistent with PAMM. We propose that migraine is a risk factor for the development of PAMM. The changes in retinal microvasculature in migraine may increase a patient's susceptibility to retinal ischemia. Other risk factors for retinal ischemia, including diabetes, hypertension, hyperlipidemia, sickle cell disease, and orbital trauma, have been shown to be associated with PAMM. Further research should be conducted to determine whether there is a definite relationship between migraine and PAMM.
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