Recurrent Vision Loss in a Patient with Giant Cell Arteritis while on High Dose Corticosteroids.

Giant cell arteritis (GCA) is a chronic vasculitis that can lead to permanent vision loss. In this case we describe a patient with permanent monocular vision loss from GCA, managed with long-term glucocorticoids, who presented with elevated erythrocyte sedimentation rate and acute visual loss. This patient was promptly given intravenous steroids, with initial improvement, however, she again experienced acute vision loss on the fourth day of treatment.