title: Spectral domain optical coherence tomographic findings at convalescent stage of acute zonal occult outer retinopathy.
abstract: OBJECTIVE
  To describe the morphology of the retina at the convalescent stage of acute zonal occult outer retinopathy (AZOOR) from images obtained by spectral domain optical coherence tomography (SD-OCT).
  
  
  METHODS
  The visual fields, electroretinograms (ERGs), and OCT images were reviewed in two women aged 24 and 33 years. The patients were followed for one and four years, respectively.
  
  
  RESULTS
  In both cases, the anterior and posterior segments were almost normal, although both patients had a sudden unilateral vision decrease and photopsia. Goldmann perimetry revealed enlarged blind spots and scotomas. The ERGs were reduced in both cases. SD-OCT showed that the junction of the inner and outer segment, the IS/OS line, of the photoreceptors was irregular or lost in the affected retinas. The retina in these areas was thinner due to a decrease in the thickness of both the outer nuclear layer (ONL) and inner nuclear layer (INL) in Case 2.
  
  
  CONCLUSIONS
  The decrease in retinal thickness at the convalescent stage of AZOOR is most likely due to a shortening of not only the photoreceptors and ONL but also to a thinning of the INL in a severe case.
authors.affiliation: Department of Ophthalmology, Matsumoto Dental University, shiojiri, Nagano, Japan.
authors.forename: Kouichi
authors.initials: K
authors.lastname: Ohta
authors.forename: Atsuko
authors.initials: A
authors.lastname: Sato
authors.forename: Emi
authors.initials: E
authors.lastname: Fukui
references.citation: Arch Ophthalmol. 1985 Dec;103(12):1796-806
references.pmid: 2866759
references.citation: Arch Ophthalmol. 2007 Sep;125(9):1194-200
references.pmid: 17846358
references.citation: Acta Ophthalmol. 2008 Dec;86(8):913-6
references.pmid: 18547281
references.citation: Am J Ophthalmol. 2009 Mar;147(3):467-72
references.pmid: 19026403
references.citation: Am J Ophthalmol. 2008 Jul;146(1):111-20
references.pmid: 18439564
references.citation: J Clin Neuroophthalmol. 1993 Jun;13(2):79-97
references.pmid: 8340485
references.citation: Am J Ophthalmol. 2002 Sep;134(3):329-39
references.pmid: 12208243