title: Three-year clinical comparison of 3-piece AcrySof and SI-40 silicone intraocular lenses.
abstract: OBJECTIVE
  To compare the 3-year performance of the 3-piece AcrySof (Alcon) and the SI-40 silicone (Allergan) intraocular lenses (IOLs).
  
  
  METHODS
  John A. Moran Eye Center, University of Utah, Salt Lake City, Utah, USA.
  
  
  METHODS
  In this retrospective study, patients with no complications and at least a 3-year follow-up after IOL implantation were examined for signs of inflammation, visual function, posterior capsule opacification (PCO), and satisfaction.
  
  
  RESULTS
  One hundred eleven patients were enrolled with equivalent visual acuity, inflammation, and PCO parameters. The AcrySof eyes had less anterior capsule opacification and more intralenticular inclusions than the other group. Complete anterior capsule overlap was associated with decreased PCO, and significantly more SI-40 eyes had complete anterior capsule overlap.
  
  
  CONCLUSIONS
  The second-generation silicone IOL was equivalent to the 3-piece AcrySof in patient satisfaction, visual function, inflammation, and PCO. The amount of anterior capsule overlap on the IOL may help to explain the study differences.
authors.affiliation: Department of Ophthalmology and Visual Sciences, University of Utah Health Sciences Center, Salt Lake City, Utah 84132, USA. randall.olson@hsc.utah.edu
authors.forename: Todd
authors.initials: T
authors.lastname: Daynes
authors.forename: Terrence S
authors.initials: TS
authors.lastname: Spencer
authors.forename: Kim
authors.initials: K
authors.lastname: Doan
authors.forename: Nick
authors.initials: N
authors.lastname: Mamalis
authors.forename: Randall J
authors.initials: RJ
authors.lastname: Olson
mesh_terms: D000180:Acrylic Resins; D000368:Aged; D002386:Cataract / Q000209:etiology / Q000473:pathology; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007903:Lens Capsule, Crystalline / Q000473:pathology / Q000601:surgery; D019654:Lens Implantation, Intraocular; D007910:Lenses, Intraocular; D008297:Male; D017060:Patient Satisfaction; D018918:Phacoemulsification; D011183:Postoperative Complications / Q000473:pathology; D011474:Prosthesis Design; D012029:Refraction, Ocular / Q000502:physiology*; D012189:Retrospective Studies; D012826:Silicone Elastomers; D014792:Visual Acuity / Q000502:physiology*
chemical_list: D000180:Acrylic Resins; D012826:Silicone Elastomers