title: [Evaluation of post intraocular lens implantation detrition of clear corneal incisions using an injector system in porcine eyes].
abstract: OBJECTIVE
  To evaluate the detrition of clear corneal incisions (CCIs) after intraocular lens (IOL) implantation using an injector system in porcine eyes.
  
  
  METHODS
  Group A: after CCIs were performed with 1.8, 2.0, 2.2, 2.4, and 2.65 mm wide slit knives, a Y-60 H (HOYA) IOL was implanted in the anterior chamber using an injector system. Group B: after CCIs were performed with 2.4, 2.65, 2.8, 3.0, and 3.2 mm wide slit knives, a PY-60 R (HOYA) IOL was implanted in the anterior chamber using an injector system. Group C: after CCIs were performed with 2.8, 3.0, 3.2, 3.4 mm wide slit knives, a SN 60 AT (Alcon) IOL was implanted in the anterior chamber using an injector system.
  
  
  METHODS
  CCIs were performed with 3.0 mm wide slit knives. Each group used five porcine eyes for each slit knife (Group A 25 eyes; Group B 25 eyes; Group C 20 eyes; CONTROL 5 eyes). The detrition of the CCIs was evaluated on three different aspects using a scanning electron microscope: a) external expansion at both edges of CCIs; b) rupture of the collagen fibers; c) expansion between the collagen fibers. Aspects a, b and c were given a score of 0, 1, and 2, respectively, and the total points were compared statistically between test and control groups.
  
  
  RESULTS
  The degree of CCIs detrition was significantly reduced in CCIs with a width of more than 2.4 mm of CCIs width in Group A, more than 3.0 mm in Group B, and more than 3.2 mm in Group C.
  
  
  CONCLUSIONS
  Minimizing the detrition of corneal incisions after IOL implantation needs a larger than the recommended width of corneal incision.
authors.affiliation: Department of Ophthalmology, Showa University Fujigaoka Hospital, Japan.
authors.forename: Takahiro
authors.initials: T
authors.lastname: Usui
authors.forename: Eiichi
authors.initials: E
authors.lastname: Nishimura
authors.forename: Mitsutaka
authors.initials: M
authors.lastname: Soda
authors.forename: Shigeo
authors.initials: S
authors.lastname: Yaguchi
authors.forename: Hiroaki
authors.initials: H
authors.lastname: Oniki
authors.forename: Kiyoko
authors.initials: K
authors.lastname: Nakano
mesh_terms: D000818:Animals; D003315:Cornea / Q000601:surgery* / Q000648:ultrastructure*; D019654:Lens Implantation, Intraocular / Q000379:methods*; D008855:Microscopy, Electron, Scanning; D013552:Swine