title: Anterior and posterior capsular opacification  with the Tecnis ZCB00 and AcrySof SA60AT IOLs:  a randomised intraindividual comparison.
abstract: OBJECTIVE
  To evaluate and compare the 1-year postoperative levels of posterior capsule opacification (PCO) as well as the level of anterior capsule retraction and opacification (ACO) after implantation of two single-piece hydrophobic acrylic intraocular lens (IOL) models.
  
  
  METHODS
  Randomised, controlled, prospective and double-blind study including 148 eyes of 74 patients (age range, 61-80 years) with bilateral senile cataract. Each patient underwent surgery with implantation of an AcrySof SA60AT (Group A) in one eye and Tecnis ZCB00 (Group B) in the fellow eye by the same experienced surgeon. Lens allocation to the first or second operated eye followed a randomisation process. At 12 months postoperatively, the PCO level was evaluated with the Evaluation of Posterior Capsule Opacification software, whereas the level of ACO and capsule retraction was evaluated and graded subjectively.
  
  
  RESULTS
  All surgeries were uneventful. The mean PCO scores were 0.10 ± 0.17 and 0.21 ± 0.89 in Groups A and B, respectively, with no statistically significant differences between the groups (p=0.47). No significant correlation was found between the PCO scores in Groups A and B (r=0.16, p=0.17). Regarding ACO, it was present in 15 eyes (20.3%) and two eyes (2.7%) in Groups A and B, respectively (p=0.37). Capsular phimosis (13 eyes, 17.6%) was only observed in Group A.
  
  
  CONCLUSIONS
  Both IOLs had a similar low rate of PCO 1 year after surgery. However, there seems to be a difference in the anterior capsule behaviour between both IOL models.
authors.forename: Guenal
authors.initials: G
authors.lastname: Kahraman
authors.forename: Harald
authors.initials: H
authors.lastname: Schrittwieser
authors.forename: Michael
authors.initials: M
authors.lastname: Walch
authors.forename: Frank
authors.initials: F
authors.lastname: Storch
authors.forename: Karl
authors.initials: K
authors.lastname: Nigl
authors.forename: Clara
authors.initials: C
authors.lastname: Ferdinaro
authors.forename: Michael
authors.initials: M
authors.lastname: Amon
mesh_terms: D000180:Acrylic Resins; D000368:Aged; D000369:Aged, 80 and over; D057866:Anterior Capsule of the Lens / Q000473:pathology*; D001672:Biocompatible Materials; D058442:Capsule Opacification / Q000175:diagnosis / Q000209:etiology*; D004311:Double-Blind Method; D005260:Female; D006801:Humans; D019654:Lens Implantation, Intraocular; D007910:Lenses, Intraocular; D008297:Male; D008875:Middle Aged; D018918:Phacoemulsification; D057852:Posterior Capsule of the Lens / Q000473:pathology*; D011183:Postoperative Complications; D011446:Prospective Studies; D011474:Prosthesis Design; D016896:Treatment Outcome
chemical_list: D000180:Acrylic Resins; D001672:Biocompatible Materials