Acute Macular Neuroretinopathy presenting as bitemporal defects on Humphrey Visual Field

A 25-year-old woman presented with blurry vision, headache, nausea, and syncope. Humphrey visual field testing revealed bitemporal defects, but magnetic resonance imaging was negative for chiasmal pathology. Macular optical coherence tomography showed focal parafoveal disruption of the photoreceptor inner segment/outer segment junction and infrared imaging showed hyporeflective macular lesions in both eyes. Our case demonstrates a diagnosis of acute macular neuroretinopathy that presented with bitemporal visual field defects. To our knowledge, bitemporal visual field loss, mimicking chiasmal pathology, has not been reported previously in association with acute macular neuroretinopathy.