title: Precrystalline posterior chamber intraocular lens for surgical correction of severe myopia.
abstract: OBJECTIVE
  To report early experience with a posterior chamber precrystalline intraocular lens designed for correction of severe myopia from -10 to -30 diopters. This intraocular lens respects the transparent crystalline lens and does not interfere with accommodation.
  
  
  METHODS
  The concave-convex methylmethacrylate lens, with flexible haptics that are supported in the sulcus, is placed behind the iris, in front of the lens, and centered with the pupil.
  
  
  RESULTS
  From July 1995 to November 1998, 149 precrystalline lenses have been inserted with few, generally reversible complications, which are now largely prevented by adequate modification of the intraocular lens. Correction has been satisfactory and stable.
  
  
  CONCLUSIONS
  Although follow-up is relatively short, precrystalline lens placement may be considered an important contribution to the surgical management of severe myopia to improve the patient's vision and, consequently, quality of life.
authors.affiliation: Instituto Barraquer, Barcelona, Spain. jbm@cobarraquer.es
authors.forename: J
authors.initials: J
authors.lastname: Barraquer
mesh_terms: D000328:Adult; D005500:Follow-Up Studies; D006801:Humans; D007498:Iris; D019654:Lens Implantation, Intraocular / Q000295:instrumentation*; D007908:Lens, Crystalline; D007910:Lenses, Intraocular; D020366:Methylmethacrylate; D009216:Myopia / Q000175:diagnosis / Q000601:surgery*; D012008:Recurrence; D012029:Refraction, Ocular; D012189:Retrospective Studies; D012720:Severity of Illness Index; D016896:Treatment Outcome; D014792:Visual Acuity
chemical_list: D020366:Methylmethacrylate