title: The effect of mydriatics on posterior synechia after combined pars plana vitrectomy, phacoemulsification, and intraocular lens implantation.
abstract: OBJECTIVE
  To compare short-acting mydriatics versus long-acting mydriatics and to assess their effect on postoperative frequency and severity of posterior synechia after combined pars plana vitrectomy, phacoemulsification, and intraocular lens implantation.
  
  
  METHODS
  We retrospectively reviewed the records of 69 eyes of 69 patients who received a combined operation by the same surgeon for rhegmatogenous retinal detachment and cataracts. The mean follow-up period in both groups was 43 weeks. The frequency and severity of posterior synechia were analyzed at baseline and over a 6-month follow-up period.
  
  
  RESULTS
  Of the 69 eyes, 29.7% (11 of 37) in the long-acting mydriatic group versus 9.4% (3 of 32) in the short-acting mydriatic group had developed posterior synechia. The difference was statistically significant (P = 0.036). Additionally, when the severity of posterior synechia was measured in hour units, there was a statistically significant difference in severity between the 2 groups (long-acting mydriatic group, 0.76 +/- 1.52 hours; short-acting mydriatic group, 0.13 +/- 0.42 hours; P = 0.020).
  
  
  CONCLUSIONS
  The frequency and severity of posterior synechia after a combined operation may be reduced by the use of a short-acting mydriatic.
authors.affiliation: Department of Ophthalmology, College of Medicine, Chungnam National University, Daejeon, Korea.
authors.forename: Sung Bok
authors.initials: SB
authors.lastname: Lee
authors.forename: Deok Goo
authors.initials: DG
authors.lastname: Lee
authors.forename: Joo Young
authors.initials: JY
authors.lastname: Kwag
authors.forename: Jung Yeul
authors.initials: JY
authors.lastname: Kim
mesh_terms: D000368:Aged; D001285:Atropine / Q000627:therapeutic use; D005260:Female; D006801:Humans; D007498:Iris / Q000503:physiopathology; D019654:Lens Implantation, Intraocular; D007908:Lens, Crystalline / Q000503:physiopathology; D008297:Male; D008875:Middle Aged; D009184:Mydriatics / Q000627:therapeutic use*; D018918:Phacoemulsification; D010656:Phenylephrine / Q000627:therapeutic use; D011183:Postoperative Complications; D012163:Retinal Detachment / Q000601:surgery; D012189:Retrospective Studies; D000267:Tissue Adhesions / Q000188:drug therapy* / Q000503:physiopathology; D016896:Treatment Outcome; D014331:Tropicamide / Q000627:therapeutic use; D014821:Vitrectomy
chemical_list: D009184:Mydriatics; D010656:Phenylephrine; D001285:Atropine; D014331:Tropicamide