Giant cell arteritis (GCA) can be a devastating disease resulting in blindness if not promptly diagnosed and treated. The only proven treatment for GCA is systemic corticosteroids; however, there are many side-effects associated with this therapy including ocular side-effects such as ocular hypertension, cataract formation and central serous chorioretinopathy. To raise physician awareness, a patient with biopsy-proven GCA is reported who lost vision during corticosteroid therapy because of central serous chorioretinopathy.