title: Prognostic factors after primary vitrectomy and perfluorocarbon liquids for bullous rhegmatogenous retinal detachment.
abstract: OBJECTIVE
  To identify prognostic factors for visual acuity and anatomic outcomes associated with bullous rhegmatogenous retinal detachment (RRD) management using primary pars plana vitrectomy, intraoperative perfluorocarbon liquids (PFCLs), and internal gas tamponade.
  
  
  METHODS
  The authors studied a consecutive series of 115 eyes (115 patients) with a bullous RRD not complicated by proliferative vitreoretinopathy (PVR) associated with large, multiple, and/or posterior breaks in 58 (50.4%) eyes. All eyes underwent vitrectomy, injection of PFCL, and gas tamponade as the primary procedure. Encircling scleral bands were placed in all cases. The follow-up period ranged from 3 to 60 months (mean 16.6+/-14.1 months).
  
  
  RESULTS
  Retinal reattachment was achieved in 92.2% of eyes (106/115) with one operation and in all eyes after a second procedure. PVR was observed in 1 (0.87%) eye and preretinal membranes in 3 (2.6%) eyes. Progression of pre-existing cataract and development of new cataract occurred in 45 (58.4%) of the 77 phakic eyes. The presence of inferior retinal breaks was significantly associated with redetachment after the first procedure (p=0.0156). On univariate analysis, better preoperative visual acuity (p<0.001), macular sparing retinal detachment (p<0.001), and fewer quadrants involved by the detachment (p=0.0015) were significant positive prognostic factors for final visual acuity. Logistic regression analysis highlighted that macular sparing retinal detachment and absence of trauma were associated with better final visual acuity.
  
  
  CONCLUSIONS
  Redetachment was associated with the presence of inferior retinal breaks. Visual recovery was dependent on preoperative visual acuity, macular involvement, extent of retinal detachment, and trauma.
authors.affiliation: Department of Ophthalmology College of Medicine, King Saud University, Riyadh, Saudi Arabia. abuasrar@KSU.edu.sa
authors.forename: A M
authors.initials: AM
authors.lastname: Abu El-Asrar
authors.forename: H F
authors.initials: HF
authors.lastname: Al-Kwikbi
authors.forename: D
authors.initials: D
authors.lastname: Kangave
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D005466:Fluorocarbons / Q000008:administration & dosage*; D005500:Follow-Up Studies; D006801:Humans; D007431:Intraoperative Complications; D008297:Male; D011183:Postoperative Complications; D011184:Postoperative Period; D011379:Prognosis; D016684:Prone Position; D012008:Recurrence; D012163:Retinal Detachment / Q000503:physiopathology / Q000601:surgery*; D012189:Retrospective Studies; D012591:Scleral Buckling; D013459:Sulfur Hexafluoride / Q000008:administration & dosage; D014792:Visual Acuity / Q000502:physiology*; D014821:Vitrectomy; D055815:Young Adult
chemical_list: D005466:Fluorocarbons; D013459:Sulfur Hexafluoride