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Acute macular neuroretinopathy (AMNR) is a rare condition that produces transient or permanent visual impairment. Typical cases have acute onset multifocal scotomas that correspond rather precisely with reddish, flat, or depressed circumscribed lesions in the macula. These lesions are wedge-shaped and generally point toward the fovea. The pathophysiology of AMNR is unclear, the causes are uncertain,...