title: Posterior capsule opacification and Nd:YAG capsulotomy rates after implantation of silicone, hydrogel and soft acrylic intraocular lenses: a two-year follow-up study.
abstract: OBJECTIVE
  To compare the posterior capsule opacification (PCO) and neodymium:YAG (Nd:YAG) laser posterior capsulotomy rates associated with three different posterior chamber foldable intraocular lenses (IOL).
  
  
  METHODS
  We retrospectively evaluated the rates of PCO and Nd:YAG laser capsulotomy in 1150 eyes two years after standard phacoemulsification with a no-stitch 3.5mm clear corneal incision (CCI) and in-the-bag implantation of one of three types of IOL: 190 eyes received a one-piece round-edged hydrogel IOL (Hydroview H60M, Bausch & Lomb); 475 eyes a three-piece round-edged silicone IOL (AMO PhacoFlex SI-40NB, Allergan); 485 eyes a three-piece square-edged soft acrylic lens (AcrySof MA60MA, Alcon).
  
  
  RESULTS
  The PCO and Nd:YAG laser capsulotomy rates were respectively 43.15% and 20.5% in the Hydroview H60M group, 27.57% and 9.68% in the AMO PhacoFlex SI-40NB group, 10.5% and 2.47% in the AcrySof MA60MA group.
  
  
  CONCLUSIONS
  PCO and Nd:YAG laser capsulotomy rates were significantly higher in the Hydroview H60M group and significantly lower with the AcrySof MA60MA lenses, which combine a bioactive constitutive material with the square-edged optic design.
authors.affiliation: Department of Ophthalmology, Hospital of San Donà di Piave, Venezia, Italy. giorgio.beltrame2@tin.it
authors.forename: G
authors.initials: G
authors.lastname: Beltrame
authors.forename: M L
authors.initials: ML
authors.lastname: Salvetat
authors.forename: M
authors.initials: M
authors.lastname: Chizzolini
authors.forename: G B
authors.initials: GB
authors.lastname: Driussi
authors.forename: P
authors.initials: P
authors.lastname: Busatto
authors.forename: G
authors.initials: G
authors.lastname: Di Giorgio
authors.forename: F
authors.initials: F
authors.lastname: Barosco
mesh_terms: D000179:Acrylates; D000368:Aged; D002386:Cataract / Q000209:etiology*; D002387:Cataract Extraction; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D020136:Hydrogel, Polyethylene Glycol Dimethacrylate; D053685:Laser Therapy; D007903:Lens Capsule, Crystalline / Q000601:surgery*; D019654:Lens Implantation, Intraocular / Q000009:adverse effects*; D007910:Lenses, Intraocular; D008297:Male; D008875:Middle Aged; D012086:Reoperation; D012189:Retrospective Studies; D012828:Silicones
chemical_list: D000179:Acrylates; D012828:Silicones; D020136:Hydrogel, Polyethylene Glycol Dimethacrylate