title: Position of poly(methyl methacrylate) and silicone intraocular lenses after phacoemulsification.
abstract: OBJECTIVE
  To compare the positional change of poly(methyl methacrylate) (PMMA) and silicone intraocular lenses (IOLs) in vivo after phacoemulsification.
  
  
  METHODS
  Taipei Municipal Yang-Ming Hospital, Taipei, Taiwan.
  
  
  METHODS
  A prospective study of 70 cataractous eyes treated by phacoemulsification with IOL implantation was carried out. The eyes were randomized into 2 groups based on IOL type: 1-piece PMMA IOL; 3-piece silicone IOL. The amount of IOL tilt and decentration was measured and anterior chamber depth (ACD) determined by Scheimpflug photography using an anterior eye segment analysis system (EAS-1000, Nidek). All eyes were examined 1 week and 1 to 6 months after surgery.
  
  
  RESULTS
  No statistically significantly differences were found in the amount of tilt and decentration between 2 IOL types throughout the study. The ACDs were relatively constant in both groups through the early postoperative periods.
  
  
  CONCLUSIONS
  The stability of PMMA and silicone IOLs were the same after phacoemulsification.
authors.affiliation: Department of Ophthalmology, Taipei Municipal Yang-Ming Hospital, Taiwan, Republic of China.
authors.forename: M C
authors.initials: MC
authors.lastname: Wang
authors.forename: L C
authors.initials: LC
authors.lastname: Woung
authors.forename: C Y
authors.initials: CY
authors.lastname: Hu
authors.forename: H C
authors.initials: HC
authors.lastname: Kuo
mesh_terms: D000368:Aged; D000867:Anterior Chamber / Q000033:anatomy & histology; D005260:Female; D005500:Follow-Up Studies; D005548:Foreign-Body Migration / Q000209:etiology* / Q000473:pathology; D006801:Humans; D019654:Lens Implantation, Intraocular; D007910:Lenses, Intraocular; D008297:Male; D008875:Middle Aged; D018918:Phacoemulsification / Q000009:adverse effects*; D019904:Polymethyl Methacrylate; D011446:Prospective Studies; D012826:Silicone Elastomers
chemical_list: D012826:Silicone Elastomers; D019904:Polymethyl Methacrylate