title: [Use of anatomical measures of idiopathic macular hole obtained through optical coherence tomography as a predictive factor in visual results: a pilot study].
abstract: OBJECTIVE
  To evaluate the anatomy of idiopathic macular hole (IMH) using Optical Coherence Tomography (OCT) and to construct a prognostic index that can be correlated with the visual outcomes and the anatomical closing.
  
  
  METHODS
  Prospective study, in which 22 eyes with IMH had been evaluated through OCT in the daily postoperative period of IMH surgery. The Prognostic of Macular Hole Index (PMHI) was created which was correlated with the anatomical result and the postoperative visual acuity (VA) six months after surgery.
  
  
  RESULTS
  Sixteen eyes (72.7%) got anatomical closing at the end of six months of follow-up. On analysis of PMHI, there was significant difference between group 1 (open MH) and group 2 (closed MH) (p=0.0018). The risk for failure of anatomical closing is 11 times greater when the diameter of the internal base is over 600 microm or IPBM is less than 0.6 (p=0.0495). Regarding final VA, it was observed that the IPBM had a significant negative correlation with AV (p=0.001).
  
  
  CONCLUSIONS
  IPBM showed to be the best predictor of anatomical closing and postoperative visual acuity among the studied variables. It predicted 41% of the postoperative final visual acuity, leading us to believe that other factors, such as the time of history and the degeneration of photoreceptors in these older BM, can be involved in the visual outcomes.
authors.affiliation: Faculdade de Medicina, Universidade de São Paulo, and Clínica Oftalmológica do Hospital das Clínicas, São Paulo, SP, Brazil. alan_negretto@terra.com.br
authors.forename: Alan Diego
authors.initials: AD
authors.lastname: Negretto
authors.forename: André Marcelo Vieira
authors.initials: AM
authors.lastname: Gomes
authors.forename: Fernando Pistarini
authors.initials: FP
authors.lastname: Gonçalves
authors.forename: Huang Sheau
authors.initials: HS
authors.lastname: Jiun
authors.forename: Suel
authors.initials: S
authors.lastname: Abujamra
authors.forename: Yoshitaka
authors.initials: Y
authors.lastname: Nakashima
mesh_terms: D000368:Aged; D004812:Epidemiologic Methods; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010865:Pilot Projects; D011300:Preoperative Care; D011379:Prognosis; D012016:Reference Values; D012167:Retinal Perforations / Q000473:pathology* / Q000503:physiopathology / Q000601:surgery; D013997:Time Factors; D041623:Tomography, Optical Coherence; D014792:Visual Acuity / Q000502:physiology; D014821:Vitrectomy
vernacular_title: Emprego das medidas anatômicas do buraco macular idiopático obtidas pela tomografia de coerência óptica como fator preditivo nos resultados visuais: um estudo piloto.