title: Surface abnormalities on hydrophilic acrylic intraocular lenses implanted by an injector.
abstract: OBJECTIVE
  To describe and evaluate abnormalities on the surface of hydrophilic acrylic intraocular lenses (IOLs) that were implanted using an injector.
  
  
  METHODS
  Department of Ophthalmology, University of Graz, Graz, Austria.
  
  
  METHODS
  This study comprised 70 eyes having phacoemulsification and implantation of an EasAcryl (n = 50) or Inject-A (n = 20) IOL. Both hydrophilic IOLs are biconvex and have a high water content (26%), plate-haptic design, and no angulation. The IOLs were folded in a cartridge under hydroxypropyl methylcellulose and implanted by an injector.
  
  
  RESULTS
  Thirteen EasAcryl and 5 Inject-A IOLs had multiple white lines in the direction of the longitudinal axis on the posterior surface immediately after implantation. On 1 EasAcryl IOL, the white lines were separated by a clear central zone and were on the anterior surface. Another EasAcryl IOL had a 1.0 mm crack.
  
  
  CONCLUSIONS
  The abnormalities on the posterior surface of high-water-content hydrophilic acrylic IOLs disappeared or were almost gone within 1 month postoperatively and do not appear to be a concern for surgeons. These abnormalities are likely the result of the IOLs' hydrophilicity and high water content and friction in the injector barrel.
authors.affiliation: Department of Ophthalmology, University of Graz, Graz, Austria
authors.forename: C W
authors.initials: CW
authors.lastname: Faschinger
mesh_terms: D006801:Humans; D019654:Lens Implantation, Intraocular / Q000009:adverse effects*; D007910:Lenses, Intraocular; D008689:Methacrylates; D018918:Phacoemulsification; D011475:Prosthesis Failure; D013499:Surface Properties; D014786:Vision Disorders / Q000209:etiology* / Q000503:physiopathology; D014792:Visual Acuity
chemical_list: D008689:Methacrylates; C005044:hydroxyethyl methacrylate