Behcet's disease is an important cause of retinal vasculitis and vision loss in Egypt. Fluorescein angiography is the standard method of diagnosis of retinal vasculitis. OCT angiography (OCT-A) is a recently developed method that can be used in the evaluation of retinal circulation. In this study, we will test the utility of OCT-A in diagnosis and follow up of retinal vascular changes in cases diagnosed with Behcet's disease that visit the outpatient uveitis clinic of Assiut University hospital, a major tertiary center in southern Egypt, over a one year duration. Also, correlation of OCT-A changes with visual acuity and hence prognosis will be described.