title: Silicone and poly(methyl methacrylate) lens decentration associated with asymmetric capsule shrinkage in rabbits.
abstract: OBJECTIVE
  To determine whether silicone intraocular lenses (IOLs) are readily affected by capsule shrinkage.
  
  
  METHODS
  Department of Ophthalmology, Wakayama Medical College, Wakayama, Japan.
  
  
  METHODS
  A D-shaped incision was made in the anterior capsule of 38 eyes of 20 white rabbits. One of 2 IOL types was implanted in the capsular bag: 3-piece silicone or single-piece all-poly(methyl methacrylate) (PMMA). Twenty-eight eyes were evaluated for IOL rotation and optic decentration.
  
  
  RESULTS
  The extent of postoperative decentration and rotation observed with the silicone IOLs did not significantly exceed that of the PMMA IOLs.
  
  
  CONCLUSIONS
  Our results, coupled with the advantages of small incision surgery, indicate that a silicone IOL is an effective choice.
authors.affiliation: Ohmi Eye Clinic, Osaka, Japan.
authors.forename: S
authors.initials: S
authors.lastname: Ohmi
authors.forename: S
authors.initials: S
authors.lastname: Tanaka
authors.forename: S
authors.initials: S
authors.lastname: Saika
authors.forename: Y
authors.initials: Y
authors.lastname: Ohnishi
mesh_terms: D000818:Animals; D005548:Foreign-Body Migration / Q000209:etiology* / Q000473:pathology; D007903:Lens Capsule, Crystalline / Q000473:pathology*; D007905:Lens Diseases / Q000150:complications* / Q000473:pathology; D019654:Lens Implantation, Intraocular; D007910:Lenses, Intraocular; D019904:Polymethyl Methacrylate; D011817:Rabbits; D012826:Silicone Elastomers
chemical_list: D012826:Silicone Elastomers; D019904:Polymethyl Methacrylate