title: Comparison of pseudophakic dysphotopsia with Akreos Adapt and SN60-AT intraocular lenses.
abstract: OBJECTIVE
  To determine the relative incidence of unwanted light images with the AcrySof SN60-AT intraocular lens (IOL) (Alcon) and the Akreos Adapt (Bausch & Lomb) IOL.
  
  
  METHODS
  The Eye Clinic, Sir Charles Gairdner Hospital, Nedlands, Australia.
  
  
  METHODS
  In a prospective randomized study of 61 patients who had cataract surgery, the relative incidence of unwanted light images with 2 biconvex acrylic double square-edged IOLs, the SN60-AT and Akreos Adapt, was compared. Patients were followed at 1 week and for a minimum of 6 weeks. At both follow-ups, patients were asked to rate their experience of dysphotopic phenomenon according to a set of questionnaire criteria. The Mann-Whitney test was used to analyze the ordinal data.
  
  
  RESULTS
  All 61 patients were interviewed at both stages of follow-up. The mean follow-up was 8 weeks +/- 2 (SD). At 1 week, there was significantly more dysphotopsia (positive and negative) with the SN60-AT IOL (37.5%) than with the Akreos Adapt IOL (24.1%) (P = .042). Significantly more patients with the SN60-AT IOL reported negative dysphotopsia at 1 week only. At 8 weeks, the incidence of positive and negative dysphotopsia declined to 31.3% and 20.7% in the SN60-AT group and Akreos Adapt group, respectively, and there was no longer a statistically significant difference between the 2 groups.
  
  
  CONCLUSIONS
  More patients with the SN60-AT IOL than with the Akreos Adapt IOL reported dysphotopsia. One week postoperatively, the difference was significant. The difference was primarily a result of the higher incidence of negative dysphotopsia with the SN60-AT IOL. At 8 weeks, the incidence of all types of light phenomena was significantly lower in both groups.
authors.affiliation: Eye Clinic, Sir Charles Gairdner Hospital, Nedlands, Australia.
authors.forename: Samuel W
authors.initials: SW
authors.lastname: Radford
authors.forename: Anthony M
authors.initials: AM
authors.lastname: Carlsson
authors.forename: Graham D
authors.initials: GD
authors.lastname: Barrett
mesh_terms: D000368:Aged; D005260:Female; D005500:Follow-Up Studies; D019466:Glare; D006801:Humans; D015994:Incidence; D019654:Lens Implantation, Intraocular; D007910:Lenses, Intraocular / Q000009:adverse effects*; D008297:Male; D018918:Phacoemulsification; D011446:Prospective Studies; D011474:Prosthesis Design; D019591:Pseudophakia / Q000175:diagnosis / Q000209:etiology*; D011795:Surveys and Questionnaires; D014786:Vision Disorders / Q000175:diagnosis / Q000209:etiology*