title: Clear lens extraction for the correction of high myopia.
abstract: OBJECTIVE
  To evaluate the postoperative outcomes and intraoperative and postoperative complications of clear lens extraction (CLE) with posterior chamber intraocular lens (IOL) implantation in highly myopic eyes.
  
  
  METHODS
  Retrospective case series.
  
  
  METHODS
  One hundred seven patients (190 eyes) who had undergone CLE with posterior chamber IOL implantation and who had been observed for at least 3 years after surgery.
  
  
  METHODS
  Medical records of patients who had undergone CLE with posterior chamber IOL implantation to treat high myopia (axial length >26.00 mm) over 7 years (January 1990 to December 1996) were reviewed. Visual acuity and refractive error were assessed before and after surgery, and perioperative, intraoperative, and postoperative complications were recorded.
  
  
  METHODS
  Axial length, preoperative and final best spectacle-corrected visual acuity (BSCVA), preoperative and postoperative spherical equivalent (SE), argon laser treatments, surgical complications, neodymium:yttrium-aluminum-garnet (Nd:YAG) laser capsulotomy, retinal detachment (RD), time from surgery or Nd:YAG capsulotomy to RD, subfoveal choroidal neovascularization (CNV), and follow-up period.
  
  
  RESULTS
  The mean postoperative follow-up period was 4.78 years (range, 3.10-8.03 years). Final BSCVA was better than preoperative BSCVA in 159 eyes (83.68%), equal in 24 eyes (12.63%), and worse in 7 eyes (3.68%). Postoperative BSCVA was 20/40 or better in 136 eyes (71.60%) vs. 52 eyes (27.36%) before surgery (P<0.001). The mean final postoperative SE was -1.22 diopters. The risk of Nd:YAG laser capsulotomy was 77.89%. The incidence of RD was 2.10%; retinal reattachment was achieved in all cases, and none of these eyes had worse final BSCVA than before surgery. Subfoveal CNV developed in 4 eyes (2.10%) of 3 patients; all of these eyes presented with a macular lacquer crack.
  
  
  CONCLUSIONS
  Clear lens extraction with posterior chamber IOL implantation has good outcomes with acceptable predictability and improvement in best-corrected visual acuity. During follow-up, patients tended to remain stable, and the risk of retinal detachment was low. We attribute our favorable results to careful patient selection and follow-up.
authors.affiliation: Ophthalmology Service, Asturias General Hospital, Oviedo, Asturias, Spain. cpa@telecable.es
authors.forename: Luis
authors.initials: L
authors.lastname: Fernández-Vega
authors.forename: José F
authors.initials: JF
authors.lastname: Alfonso
authors.forename: Tomás
authors.initials: T
authors.lastname: Villacampa
mesh_terms: D000328:Adult; D015350:Contrast Sensitivity; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007431:Intraoperative Complications; D019654:Lens Implantation, Intraocular; D007908:Lens, Crystalline / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D009216:Myopia / Q000601:surgery*; D011183:Postoperative Complications; D012189:Retrospective Studies; D016896:Treatment Outcome; D014792:Visual Acuity