title: [Refraction changes after cataract extraction with IOL implantation in the eyes with previous performed vitrectomy].
abstract: OBJECTIVE
  To determine differences between the predicted and postoperative refraction after cataract extraction with intraocular lens implantation in the eyes, which previous underwent vitrectomy.
  
  
  METHODS
  Fifty three eyes of 52 patients underwent the analysis: twenty five in group I, nineteen in group II and nine eyes with previous scleral buckling in group III. All the eyes had ECCE and IOL with PMMA implantation after vitrectomy. In groups II and. III silicone oil tamponade was used and removed before cataract extraction. Thirty eyes of the control group K underwent cataract surgery and IOL implantation alone. The IOL power calculation was performed with SRK II formula. The predicted and postoperative refractions were compared. The follow-up was minimum 4 months (on average 15 +/- 12.71 months).
  
  
  RESULTS
  The postoperative refractions were significantly shifted toward myopia than it was predicted--1.41 +/- 1.21 D in group I, -0.81 +/- 2.11 D in group II and -3.03 +/- 1.49 D in group III. In the control group K the difference was--0.07 +/- 0.91.
  
  
  CONCLUSIONS
  Myopic shift of postoperative refraction after cataract surgery should be considered, when calculating the IOL power in the eye after vitreoretinal procedures.
authors.affiliation: Katedry i Kliniki Chorób Oczu Akademii Medycznej w Łodzi.
authors.forename: Ewa
authors.initials: E
authors.lastname: Bilińska
authors.forename: Jerzy
authors.initials: J
authors.lastname: Nawrocki
authors.forename: Irena
authors.initials: I
authors.lastname: Suprunowicz
authors.forename: Wojciech
authors.initials: W
authors.lastname: Omulecki
mesh_terms: D000328:Adult; D000368:Aged; D002387:Cataract Extraction; D005260:Female; D006801:Humans; D019654:Lens Implantation, Intraocular / Q000379:methods*; D008297:Male; D008875:Middle Aged; D009216:Myopia / Q000175:diagnosis / Q000209:etiology; D011183:Postoperative Complications; D011300:Preoperative Care; D012030:Refractive Errors / Q000175:diagnosis / Q000209:etiology*; D012591:Scleral Buckling / Q000295:instrumentation; D012720:Severity of Illness Index; D014821:Vitrectomy / Q000009:adverse effects / Q000379:methods