title: Position of angle-supported, iris-fixated, and ciliary sulcus-implanted myopic phakic intraocular lenses evaluated by Scheimpflug photography.
abstract: OBJECTIVE
  To examine postoperative positional stability of myopic phakic intraocular lenses (IOLs).
  
  
  METHODS
  Prospective, nonrandomized clinical study.
  
  
  METHODS
  The study included 46 eyes which received an anterior chamber angle-supported (Bausch & Lomb NuVita; 10 eyes), anterior chamber iris-fixated (Ophtec Artisan; 20 eyes) or ciliary sulcus-implanted phakic IOL (Staar ICL; 16 eyes). The distance between the phakic IOL and the crystalline lens and the cornea as well as rotation around the optical axis was evaluated using Scheimpflug photography at 1, 3 to 6, and 12 months postsurgery.
  
  
  RESULTS
  The anterior chamber phakic IOLs showed no significant movement in anteroposterior direction. The posterior chamber phakic IOL showed a significant movement toward the crystalline lens between postoperative months 3 and 12. The median amount of rotation around the optical axis between the 3- and the 12-month evaluation was 1.9 degrees (range = 0.0-33.5 degrees) for the NuVita, 0.6 degrees (range = 0.0-3.5 degrees) for the Artisan, and 0.9 degrees (range = 0.2-2.3 degrees) for the ICL. Four NuVita IOLs rotated more than 10 degrees.
  
  
  CONCLUSIONS
  The angle-supported anterior chamber phakic IOLs showed a generally stable position regarding distance to cornea and natural lens, but rotation was observed in four IOLs. The iris-fixated phakic IOL showed the highest overall stability. The posterior chamber phakic IOL was stable in terms of rotation but had a tendency to decrease in distance toward the crystalline lens. Intraocular lenses implanted in phakic eyes followed for 12 months demonstrate stable IOL position overall.
authors.affiliation: Department of Ophthalmology, Johann Wolfgang Goethe-University, Frankfurt am Main, Germany.
authors.forename: Martin
authors.initials: M
authors.lastname: Baumeister
authors.forename: Jens
authors.initials: J
authors.lastname: Bühren
authors.forename: Thomas
authors.initials: T
authors.lastname: Kohnen
mesh_terms: D000328:Adult; D000867:Anterior Chamber / Q000601:surgery*; D001251:Astigmatism / Q000601:surgery; D002924:Ciliary Body / Q000601:surgery*; D005260:Female; D005548:Foreign-Body Migration / Q000175:diagnosis; D006801:Humans; D007498:Iris / Q000601:surgery*; D019654:Lens Implantation, Intraocular / Q000379:methods*; D007908:Lens, Crystalline / Q000502:physiology*; D007910:Lenses, Intraocular; D008297:Male; D009216:Myopia / Q000601:surgery; D010781:Photography / Q000379:methods*; D011446:Prospective Studies; D013536:Suture Techniques