title: Phakic posterior chamber intraocular lens for high myopia.
abstract: OBJECTIVE
  To evaluate the efficacy, predictability, stability, and safety of the surgical correction of high myopia using a phakic posterior chamber intraocular lens (PPC IOL).
  
  
  METHODS
  Centro Oftalmológico de Valencia-CEOVAL, Valencia, Venezuela.
  
  
  METHODS
  A retrospective study was performed to analyze 18 eyes of 12 patients who had implantation of a modified PPC IOL, the implantable contact lens (ICL), for the treatment of high myopia. The target postoperative spherical equivalent (SE) refraction was emmetropia.
  
  
  RESULTS
  The mean follow-up was 26.6 months +/- 11.3 (SD) (range 12 to 36 months). The mean preoperative SE was -15.27 +/- 3.47 diopters (D) (range -10.0 to -21.25 D) and the mean postoperative SE, -0.62 +/- 0.81 D (range -2.75 to +0.75 D). Eleven eyes (61.1%) had an SE within +/-1.00 D of emmetropia. The best spectacle-corrected visual acuity was maintained or improved in all except 1 eye, which lost more than 2 lines of Snellen visual acuity. Two eyes (11.1%) developed pupillary block the first day after surgery. Four eyes (22.2%) had moderate pigmentary dispersion. Two eyes (11.1%) had lens opacification, 1 with mild peripheral anterior capsule opacification and the other eye with central anterior subcapsular opacification. One eye (5.5%) had a significant decrease in anterior chamber depth after surgery.
  
  
  CONCLUSIONS
  Implantation of an ICL was effective for the correction of high myopia. Predictability must be improved and the long-term safety of the ICL determined. The main concerns over potential cataract formation, pigmentary dispersion, and angle-closure glaucoma remain.
authors.affiliation: Centro Oftalmológico de Valencia-CEOVAL, Valencia, Venezuela. angelpinedaf@yahoo.com
authors.forename: Angel
authors.initials: A
authors.lastname: Pineda-Fernández
authors.forename: Jorge
authors.initials: J
authors.lastname: Jaramillo
authors.forename: José
authors.initials: J
authors.lastname: Vargas
authors.forename: Miguel
authors.initials: M
authors.lastname: Jaramillo
authors.forename: José
authors.initials: J
authors.lastname: Jaramillo
authors.forename: Alicia
authors.initials: A
authors.lastname: Galíndez
mesh_terms: D000328:Adult; D002452:Cell Count; D004728:Endothelium, Corneal / Q000473:pathology; D005500:Follow-Up Studies; D006801:Humans; D019654:Lens Implantation, Intraocular / Q000379:methods*; D007908:Lens, Crystalline / Q000502:physiology*; D007910:Lenses, Intraocular; D009216:Myopia / Q000601:surgery*; D011183:Postoperative Complications; D012189:Retrospective Studies; D012449:Safety; D016896:Treatment Outcome; D014792:Visual Acuity / Q000502:physiology