title: Unilateral idiopathic retinal vasculitis, aneurysms, and neuroretinitis syndrome (IRVAN) in a young female.
abstract: OBJECTIVE
  To report a case of Idiopathic retinal vasculitis, arteriolar macroaneurysms, and neuroretinitis (IRVAN). syndrome in a young female.
  
  
  METHODS
  A 21-year-old woman presented with unilateral visual acuity (VA) loss. Ophthalmological examination disclosed unilateral optic disc swelling, star-shaped macular exudation, multiple aneurysms surrounded by perivascular exudation, retinal vasculitis, and mild vitreous reaction. The left eye examination was entirely normal. Clinical and paraclinical findings were compatible with IRVAN syndrome criteria. The patient was treated with a short course of oral steroid, a trans-septal triamcinolone acetonide injection, selective laser photocoagulation in peripheral non-perfusion areas, and intravitreal bevacizumab. In spite of primary good response, after each treatment cessation, VA dropped with increasing central macular thickness (CMT), but response to intravitreal triamcinolone (4 mg/0.1 cc) was permanent and good.
  
  
  CONCLUSIONS
  IRVAN syndrome can have unilateral presentation. All treatment options were temporary except intravitreal steroid injection in our case. The effect of steroid in IRVAN will need further evaluation.
authors.affiliation: Retina Research Center, Khatam-al Anbia Eye Hospital, Mashhad University of Medical Sciences, Iran.
authors.forename: MirNaghi
authors.initials: M
authors.lastname: Moosavi
authors.affiliation: Retina Research Center, Khatam-al Anbia Eye Hospital, Mashhad University of Medical Sciences, Iran.
authors.forename: Seyedeh Maryam
authors.initials: SM
authors.lastname: Hosseini
authors.affiliation: Retina Research Center, Khatam-al Anbia Eye Hospital, Mashhad University of Medical Sciences, Iran.
authors.forename: Nasser
authors.initials: N
authors.lastname: Shoeibi
authors.affiliation: Retina Research Center, Khatam-al Anbia Eye Hospital, Mashhad University of Medical Sciences, Iran.
authors.forename: Mohammad-Reza
authors.initials: MR
authors.lastname: Ansari-Astaneh
keywords: IRVAN retina; Idiopathic reinal vasculitis, aneurysms, and neuroretinitis syndrome; Unilateral