title: Biconvex posterior chamber accommodating intraocular lens implantation after cataract surgery: long-term outcomes.
abstract: OBJECTIVE
  To evaluate the long-term efficacy of a biconvex accommodating intraocular lens (IOL) to restore near visual performance.
  
  
  METHODS
  Department of Ophthalmology, Keio University Hospital, Tokyo, Japan.
  
  
  METHODS
  This 4-year study comprised eyes that had cataract surgery with implantation of a 1CU accommodating IOL. At all postoperative visits, the following were assessed: subjective spherical equivalent (SE) refraction; uncorrected (UDVA) and corrected (CDVA) distance visual acuities; uncorrected (UNVA), distance-corrected (DCNVA), and corrected (CNVA) near visual acuities; change in minimum additional (add) power (diopters) to attain CNVA; and accommodation amplitude. A questionnaire was administered at the last visit.
  
  
  RESULTS
  Twelve eyes of 8 cataract patients (mean age 59.0 years +/- 18.4 [SD]) were evaluated. Postoperatively, the mean SE at 1 year and 4 years was significantly more hyperopic than at 1 month (P<.05). The mean UDVA increased significantly at 4 years compared with 1 month (P<.05). There were no significant changes in CDVA, UNVA, CNVA, and DCNVA throughout the follow-up period. The change in the minimum add power to attain CNVA and in the subjective and objective accommodation amplitudes also did not change significantly over time. Eighty-three percent of patients reported being satisfied with the results.
  
  
  CONCLUSIONS
  Four years after implantation of an accommodating IOL, most patients had good vision and were satisfied, although the accommodation amplitude for near vision was not sufficient throughout the follow-up.
authors.affiliation: From the Department of Ophthalmology (Saiki, Negishi, Yamaguchi, Tsubota), and Johnson and Johnson Ocular Surface and Visual Optics Department (Dogru), Keio University School of Medicine, Tokyo, Japan.
authors.forename: Megumi
authors.initials: M
authors.lastname: Saiki
authors.forename: Kazuno
authors.initials: K
authors.lastname: Negishi
authors.forename: Murat
authors.initials: M
authors.lastname: Dogru
authors.forename: Takefumi
authors.initials: T
authors.lastname: Yamaguchi
authors.forename: Kazuo
authors.initials: K
authors.lastname: Tsubota
mesh_terms: D000065:Accommodation, Ocular / Q000502:physiology*; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D019654:Lens Implantation, Intraocular; D007910:Lenses, Intraocular; D008297:Male; D008875:Middle Aged; D018918:Phacoemulsification; D019591:Pseudophakia / Q000503:physiopathology*; D012189:Retrospective Studies; D011795:Surveys and Questionnaires; D016896:Treatment Outcome; D014792:Visual Acuity / Q000502:physiology*; D055815:Young Adult