Surface abnormalities on hydrophilic acrylic intraocular lenses implanted by an injector

J Cataract Refract Surg. 2001 Jun;27(6):845-9. doi: 10.1016/s0886-3350(00)00804-x.


Purpose: To describe and evaluate abnormalities on the surface of hydrophilic acrylic intraocular lenses (IOLs) that were implanted using an injector.

Setting: 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.

MeSH terms

  • Humans
  • Lens Implantation, Intraocular / adverse effects*
  • Lenses, Intraocular*
  • Methacrylates*
  • Phacoemulsification
  • Prosthesis Failure*
  • Surface Properties
  • Vision Disorders / etiology*
  • Vision Disorders / physiopathology
  • Visual Acuity


  • Methacrylates
  • hydroxyethyl methacrylate