title: Epiretinal membrane after pars plana vitrectomy for primary pseudophakic or aphakic rhegmatogenous retinal detachment: incidence and outcomes.
abstract: OBJECTIVE
  To compare outcomes of eyes that did or did not develop an epiretinal membrane (ERM) after repair of primary pseudophakic or aphakic rhegmatogenous retinal detachment by pars plana vitrectomy alone.
  
  
  METHODS
  Interventional, prospective, consecutive case series. Of 312 consecutive eyes that underwent pars plana vitrectomy for primary rhegmatogenous retinal detachment, 28 (8.97%) developed ERM during the postoperative period. Best-corrected visual acuity (BCVA) and fundus examinations were performed 1 month and 3, 6, and 12 months postoperatively.
  
  
  RESULTS
  Eyes with an ERM more often had a break at the equator (odds ratio, 3.92; 95% confidence interval, 1.3–11.2; P < 0.011). At ERM diagnosis, BCVA ranged from 20/400 to 20/25 with a mean of 20/100 (0.75 logarithm of the minimum angle of resolution), and BCVA at the final visit ranged from 20/200 to 20/25 with a mean of 20/63 (0.53 logarithm of the minimum angle of resolution). Of the 22 eyes that underwent surgical removal of the ERM, BCVA was ≥ 20/40 in 5 (22.7%) before the surgical procedure and in 13 (59%) at the final follow-up visit.
  
  
  CONCLUSIONS
  The incidence of ERM after pars plana vitrectomy alone for the repair of primary pseudophakic or aphakic rhegmatogenous retinal detachment was similar to reported incidences after scleral buckling. Best-corrected visual acuity improved after surgical removal of ERM, although eyes with the macula detached had lower final BCVA.
authors.affiliation: Department of Ophthalmology, Vall d'Hebron Hospital and ICOAB, Barcelona, Spain. 31756vmc@gmail.com
authors.forename: Vicente
authors.initials: V
authors.lastname: Martínez-Castillo
authors.forename: Anna
authors.initials: A
authors.lastname: Boixadera
authors.forename: Laura
authors.initials: L
authors.lastname: Distéfano
authors.forename: Miguel
authors.initials: M
authors.lastname: Zapata
authors.forename: José
authors.initials: J
authors.lastname: García-Arumí
mesh_terms: D000368:Aged; D001036:Aphakia, Postcataract / Q000209:etiology / Q000601:surgery*; D058450:Endotamponade; D019773:Epiretinal Membrane / Q000209:etiology* / Q000601:surgery; D005260:Female; D005466:Fluorocarbons / Q000008:administration & dosage; D006801:Humans; D015994:Incidence; D017075:Laser Coagulation; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications; D011446:Prospective Studies; D019591:Pseudophakia / Q000209:etiology / Q000601:surgery*; D012163:Retinal Detachment / Q000209:etiology / Q000601:surgery*; D013459:Sulfur Hexafluoride / Q000008:administration & dosage; D016896:Treatment Outcome; D014792:Visual Acuity / Q000502:physiology; D014821:Vitrectomy
chemical_list: D005466:Fluorocarbons; C073608:perfluorooctane; C042852:perflutren; D013459:Sulfur Hexafluoride