Branch retinal artery occlusion (BRAO) accounts for approximately 40% of retinal artery obstructive disease. The visual prognosis is relatively good, with the exception of recurrent BRAO. Recurrent BRAO may be idiopathic or associated with conditions such as systemic vasculitides, blood dyscrasias, floppy mitral valve syndrome, or Susac syndrome. This report describes a patient who presented with an inferior BRAO without any indication of systemic disease. There was a history of a superior BRAO in the same eye. Patients with a BRAO are at significant risk for future cardiovascular and cerebrovascular events and these patients should be referred to a neurologist and a cardiologist immediately after diagnosis.
Keywords: Branch retinal artery occlusion, recurrent, Susac syndrome.