title: Type 1 idiopathic macular telangiectasia associated with type 3 neovascularization.
abstract: OBJECTIVE
  To report the case of a patient with unilateral idiopathic macular telangiectasia (IMT) associated with type 3 neovascularization.
  
  
  METHODS
  Observational case report.
  
  
  RESULTS
  We describe a case of an 85-year-old woman who presented at our department with a gradual vision loss in her left eye (LE). Her best-corrected visual acuity (BCVA) was 20/200 in the LE. Fundus examination showed 2 small hemorrhages located nasally to the LE fovea, as well as lipid exudates. Fluorescein angiography revealed early hyperfluorescence corresponding to the dilated capillaries. Spectral-domain optical coherence tomography (SD-OCT) showed several microaneurysms within the inner retinal layers. Late indocyanine green angiography revealed a focal hyperfluorescence corresponding to a type 3 neovascularization. No signs of IMT or type 3 neovascularization were detected in the right eye. Based on these findings, the patient was diagnosed with type 1 IMT and coincident type 3 neovascularization. The LE was treated with intravitreal anti-vascular endothelial growth factor (anti-VEGF) injections. Twenty-four months later, SD-OCT revealed regression of the exudative signs, and LE BCVA improved to 20/100.
  
  
  CONCLUSIONS
  We describe the case of an unusual association between older-onset IMT and type 3 neovascularization, and subsequent regression by anti-VEGF injections. We propose a new IMT subtype called type 1C for this association. Further research must be done in order to establish the pathophysiologic mechanism and likelihood of this association.
authors.affiliation: Department of Ophthalmology, Centre Hospitalier Intercommunal de Créteil, University Paris Est Créteil, Créteil, France.
authors.forename: Julien
authors.initials: J
authors.lastname: Tilleul
authors.affiliation: Department of Ophthalmology, Centre Hospitalier Intercommunal de Créteil, University Paris Est Créteil, Créteil, France.
authors.forename: Giuseppe
authors.initials: G
authors.lastname: Querques
authors.affiliation: Department of Ophthalmology, Centre Hospitalier Intercommunal de Créteil, University Paris Est Créteil, Créteil, France.
authors.forename: Vittorio
authors.initials: V
authors.lastname: Capuano
authors.affiliation: Department of Ophthalmology, Centre Hospitalier Intercommunal de Créteil, University Paris Est Créteil, Créteil, France.
authors.forename: Alexandra
authors.initials: A
authors.lastname: Miere
authors.affiliation: Department of Ophthalmology, Centre Hospitalier Intercommunal de Créteil, University Paris Est Créteil, Créteil, France.
authors.forename: Mayer
authors.initials: M
authors.lastname: Srour
authors.affiliation: Department of Ophthalmology, Centre Hospitalier Intercommunal de Créteil, University Paris Est Créteil, Créteil, France.
authors.forename: Eric H
authors.initials: EH
authors.lastname: Souied
keywords: Anti-vascular endothelial growth factor; Fluorescein angiography; Idiopathic macular telangiectasia; Spectral-domain optical coherence tomography; Type 3 neovascularization