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A 24-year-old woman with acute multifocal placoid pigment epitheliopathy in both eyes had no signs or symptoms other than the impaired vision. Visual evoked potentials demonstrated prolonged latency. Lumbar CSF showed inflammatory changes. Serum antibody titres against Borrelia burgdorferi were markedly elevated. Cortisone treatment was without success, but intravenous penicillin quickly brought about improvement in vision. Borrelia infection may thus have been the cause of the multifocal placoid pigment epitheliopathy.