to report a case of gyrate atrophy of the choroid and retina associated with retinal detachment. hyperornithinemia confirmed the diagnosis of gyrate atrophy. pars plana vitrectomy with silicone oil infusion was performed with good anatomical results, despite the persistence of low visual acuity. retinal detachment is a rare complication of gyrate atrophy and can be managed with pars plana vitrectomy and silicone oil. we discuss the possible mechanisms that led to low visual acuity.