title: [AcrySof® Toric (SN60T) intraocular lens implantation: refractive predictibility and aberrometric impact of decentration].
abstract: OBJECTIVE
  To evaluate refractive outcomes of toric intraocular lens (IOL) implantation with a detailed analysis of decentration and its effect on aberrometry.
  
  
  METHODS
  This retrospective study enrolled 19 eyes implanted with SN60T AcrySof(®) Toric (Alcon - USA) IOL's. Spherocylindric correction was studied in depth by the Alpins method, and retro-illumination images were used to analyze the alignment of the IOL with its intended axis. IOL decentration as well as its aberrometric impact were evaluated with a strict, novel protocol.
  
  
  RESULTS
  Three months postoperatively, uncorrected distance visual acuity was greater or equal to 20/40 in 94.74% of cases, postoperative subjective cylinder was less or equal to 0.5 D in 68.42% of eyes, with a mean index of success of 0.24. Mean error of toric IOL alignment was 5.68° (0 to 14). Mean IOL decentration was 0.78 mm (0 to 1.78) with a mean coma and trefoil of 0.18 μ (0.06 to 0.33) and 0.19 μ (0.05 to 0.51), respectively. The larger the IOL decentration, the higher the optical aberrations were.
  
  
  CONCLUSIONS
  Toric intraocular lens implantation is an effective, safe and predictable method of spherocylindrical correction during cataract surgery, with a refractive accuracy similar to that of LASIK in the treatment of astigmatism in young patients. IOL decentration produces optical aberrations including coma and trefoil, which interfere with visual performance.
authors: Service d'ophtalmologie, centre hospitalier universitaire de Bordeaux, hôpital Pellegrin, place Amélie-Raba-Léon, 33000 Bordeaux, France. gregoirehumbert@hotmail.fr
authors: G
authors: G
authors: Humbert
authors: J
authors: J
authors: Colin
authors: D
authors: D
authors: Touboul
mesh_terms: D057128:Aberrometry; D000328:Adult; D000368:Aged; D002386:Cataract / Q000175:diagnosis / Q000503:physiopathology; D002387:Cataract Extraction; D006801:Humans; D019654:Lens Implantation, Intraocular / Q000295:instrumentation / Q000379:methods*; D007910:Lenses, Intraocular; D008875:Middle Aged; D011379:Prognosis; D011475:Prosthesis Failure; D019591:Pseudophakia / Q000175:diagnosis / Q000503:physiopathology; D012029:Refraction, Ocular / Q000502:physiology*; D012189:Retrospective Studies; D014792:Visual Acuity / Q000502:physiology