title: [Long-term results of posterior chamber phakic intraocular lens implantation for correction of high ametropia].
abstract: OBJECTIVE
  To assess efficacy, stability and safety of posterior chamber phakic intraocular lens implantation with STAAR Visian ICL for correction of high ametropia, with a mean follow-up of 5 years (3.5-10 years).
  
  
  METHODS
  Ninety eyes of 53 highly ametropic patients (45 myopia, ten hyperopia and 35 with mixed astigmatism) were included in a retrospective single-surgeon study, using primarily the V4 ICL model (87 eyes). We studied pre- and postoperative refractive efficacy, endothelial cell density, crystalline lens opacification and intraocular clearances within the various compartments of the eye.
  
  
  RESULTS
  Mean uncorrected visual acuity was 0.77 at the 12th postoperative month; 17 of 90 eyes required adjunctive photoablation for residual astigmatism. Forty-eight percent of eyes gained at least one line of best corrected visual acuity. After implantation, the decrease in endothelial cell density remained stable at 0.69%/year, and 91% of eyes showed no opacification of the crystalline lens. Mean endothelium-ICL and ICL-crystalline lens distances were 2.41 mm and 0.52 mm respectively. Overall patient satisfaction achieved was 96% at 36 months postoperatively.
  
  
  CONCLUSIONS
  These results demonstrate efficacy, stability and safety of the ICL V4 phakic IOL for the correction of high ametropia. Long-term follow-up did not show a significant increase in cataract formation in implanted eyes.
authors.affiliation: Service d'ophtalmologie, hôpital Morvan, CHU de Brest, 5, avenue Foch, 29609 Brest cedex, France. matthieuleloir@gmail.com
authors.forename: M
authors.initials: M
authors.lastname: Le Loir
authors.forename: B
authors.initials: B
authors.lastname: Cochener
mesh_terms: D000293:Adolescent; D000328:Adult; D005500:Follow-Up Studies; D006801:Humans; D019654:Lens Implantation, Intraocular / Q000009:adverse effects / Q000379:methods / Q000534:rehabilitation / Q000706:statistics & numerical data; D054120:Phakic Intraocular Lenses; D057852:Posterior Capsule of the Lens / Q000601:surgery*; D011183:Postoperative Complications / Q000453:epidemiology; D012030:Refractive Errors / Q000453:epidemiology / Q000534:rehabilitation / Q000628:therapy*; D054140:Refractive Surgical Procedures / Q000295:instrumentation / Q000379:methods; D012189:Retrospective Studies; D012720:Severity of Illness Index; D013997:Time Factors; D016896:Treatment Outcome; D014792:Visual Acuity / Q000502:physiology; D055815:Young Adult