title: TWENTY-SEVEN-GAUGE VERSUS 25-GAUGE VITRECTOMY FOR PRIMARY RHEGMATOGENOUS RETINAL DETACHMENT.
abstract: OBJECTIVE
  To compare the safety and efficacy of 27-gauge (G) pars plana vitrectomy (PPV) with 25-G PPV for the treatment of primary rhegmatogenous retinal detachment (RRD).
  
  
  METHODS
  In this prospective randomized comparative interventional study, 15 eyes from 30 patients were treated with 27-G PPV (Group A); the other 15 eyes underwent 25-G PPV (Group B). All patients were examined preoperatively and then 1 day, 1 week, 1 month, 3 months, and 6 months after PPV.
  
  
  RESULTS
  In each group, retinal reattachment was observed in 14 out of 15 eyes after surgery. After six months, both groups showed a statistically significant improvement in mean BCVA (P < 0.001); the difference between the two groups was not statistically significant. No cases of ocular hypotony were seen, whereas intraocular hypertension occurred in two patients in Group B. No intraoperative nor postoperative complications were registered. There was no significant difference in operating times (P = 0.52).
  
  
  CONCLUSIONS
  The safety and efficacy of 27-G PPV for rhegmatogenous retinal detachment appear similar to 25-GPPV. We found no anatomical or functional difference in terms of postoperative BCVA, IOP, complications, and operating time. Twenty-seven-G vitrectomy is therefore a valid option in the treatment of rhegmatogenous retinal detachment.
authors.affiliation: Dipartimento di Neuroscienze, Scienze Riproduttive ed Odontostomatologiche, University Federico II, Naples, Italy.
authors.forename: Mario R
authors.initials: MR
authors.lastname: Romano
authors.forename: Gilda
authors.initials: G
authors.lastname: Cennamo
authors.forename: Mariantonia
authors.initials: M
authors.lastname: Ferrara
authors.forename: Michela
authors.initials: M
authors.lastname: Cennamo
authors.forename: Giovanni
authors.initials: G
authors.lastname: Cennamo
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009798:Ocular Hypertension / Q000209:etiology; D061646:Operative Time; D011183:Postoperative Complications; D011446:Prospective Studies; D012163:Retinal Detachment / Q000601:surgery*; D014792:Visual Acuity; D014821:Vitrectomy / Q000009:adverse effects / Q000379:methods*