title: Choroidal thickness using EDI-OCT in adult-onset vitelliform macular dystrophy.
abstract: BACKGROUND
  To compare choroidal thickness in patients with adult-onset foveomacular vitelliform dystrophy (AOFVD) with healthy subjects and to correlate choroidal thickness with age, gender and spherical equivalent.
  
  
  METHODS
  A prospective, observational study of 37 eyes (15 eyes in AOFVD group and 22 eyes in control group) was conducted. Images were acquired by enhanced depth imaging optical coherence tomography (EDI-OCT). Choroidal thickness measurements were performed in the subfoveal region and at 500, 1000 and 1500 µm intervals from the foveal center to nasal and to temporal regions for subsequent averaging of values.
  
  
  RESULTS
  The AOFVD group consisted of four male eyes (28.6 %) and 10 female eyes (71.4 %); age was 33-62 years; spherical equivalent (SE) ranged from -1.50 to 1.50 spherical diopters (SD); mean subfoveal thickness was 325.6 µm, ranging from 186 to 420 µm; and the average of thicknesses was 309.4 µm, ranging from 188 to 413 µm. The control group consisted of 12 male eyes (54.5 %) and 10 female eyes (45.5 %); age was 27-62 years; SE ranged from -2.50 to 0.50 SD; subfoveal thickness was 294.8 µm, ranging from 213 to 481 µm; and the average of thicknesses was 279.4 µm, ranging from 201 to 458 µm.
  
  
  CONCLUSIONS
  The AOFVD group and the control group showed similar choroidal thickness by correcting for age, SE and gender. Not yet known, completely, which biochemical and vascular flow alterations of the choroid, and which functional RPE changes may play a role in the pathogenesis of this disease. EDI-OCT, incorporated in some SD-OCT devices, allows higher quality assessment of the choroid. In this article, choroidal thickness of patients with AOFVD, a rare disease with a not fully understood pathogenesis, was assessed.
authors.affiliation: Department of Ophthalmology - Retina, Irmandade da Santa Casa de Misericordia de São Paulo, Rua Martinico Prado, 159 - apto 63, São Paulo, SP CEP 01224-010 Brazil.
authors.forename: Renato Menezes
authors.identifier: 0000-0003-2682-9899
authors.initials: RM
authors.lastname: Palácios
authors.affiliation: Department of Ophthalmology - Retina, Irmandade da Santa Casa de Misericordia de São Paulo, Rua Martinico Prado, 159 - apto 63, São Paulo, SP CEP 01224-010 Brazil.
authors.forename: Thaís Sousa
authors.initials: TS
authors.lastname: Mendes
authors.affiliation: Department of Ophthalmology - Retina, Irmandade da Santa Casa de Misericordia de São Paulo, Rua Martinico Prado, 159 - apto 63, São Paulo, SP CEP 01224-010 Brazil.
authors.forename: Ronaldo Yuiti
authors.initials: RY
authors.lastname: Sano
authors.affiliation: Department of Ophthalmology - Retina, Irmandade da Santa Casa de Misericordia de São Paulo, Rua Martinico Prado, 159 - apto 63, São Paulo, SP CEP 01224-010 Brazil.
authors.forename: Davi Chen
authors.initials: DC
authors.lastname: Wu
authors.affiliation: Department of Ophthalmology - Retina, Irmandade da Santa Casa de Misericordia de São Paulo, Rua Martinico Prado, 159 - apto 63, São Paulo, SP CEP 01224-010 Brazil.|Ophthalmology, Santa Casa de Sao Paulo School of Medical Sciences, São Paulo, SP Brazil.
authors.forename: Teruo
authors.initials: T
authors.lastname: Aihara
authors.affiliation: Department of Ophthalmology - Retina, Irmandade da Santa Casa de Misericordia de São Paulo, Rua Martinico Prado, 159 - apto 63, São Paulo, SP CEP 01224-010 Brazil.
authors.forename: Roberta Pereira
authors.initials: RP
authors.lastname: de Almeida Manzano
keywords: Adult-onset foveomacular vitelliform dystrophy; Choroidal thickness; Enhanced depth imaging; Optical coherence tomography