title: Contralateral comparison of visual outcome of AcrySof IQ and SA60AT intraocular lenses.
abstract: OBJECTIVE
  To compare the visual performance of aspherical AcrySof IQ (SN60WF) and SA60AT spherical intraocular lenses after cataract surgery.
  
  
  METHODS
  Prospective comparative study.
  
  
  METHODS
  Seventy eyes of 35 patients who underwent phacoemulsification for cataract surgery.
  
  
  METHODS
  The IQ lens was implanted in one eye and the SA60AT lens in the other eye of every patient. Refraction, uncorrected visual acuity (UCVA), and best spectacle-corrected visual acuity (BSCVA) were measured 1 and 3 months after surgery. At 3 months' follow-up, the quality of vision, in terms of contrast sensitivity (CS) with and without glare and higher-order aberrations (HOA), was also determined.
  
  
  RESULTS
  At 3 months postoperative, the mean UCVA in the IQ and SA60AT groups was 0.25 (SD 0.26) and 0.30 (SD 0.27), respectively, and BSCVA was 0.10 (SD 0.16) in both groups. Spherical refractive error was -0.56 (SD 1.03) D and -0.47 (SD 0.64) D in the IQ and SA groups, respectively. In photopic conditions without glare, IQ eyes had statistically significant better CS at 12 cycles per degree (cpd) and better function at 3 and 18 cpd, and in mesopic conditions without glare, IQ eyes also had better results at 3, 12, and 18 cpd. In mesopic conditions with glare, IQ eyes also had better CS in 6 and 18 cpd. In terms of aberrations, the IQ group had significantly (p < 0.05) lower spherical aberrations, root mean-square, and coma X and Y values with 6 mm pupil size than the SA group.
  
  
  CONCLUSIONS
  In terms of refraction, no significant difference was found between these 2 types, but there was a difference in the quality of vision in photopic and mesopic conditions and also HOA. Those with reactive and dilated pupils, such as younger patients and night drivers, may be more satisfied with IQ aspherical lenses.
authors.affiliation: Noor Ophthalmology Research Center, Noor Eye Hospital, Tehran, Iran.
authors.forename: Alireza
authors.initials: A
authors.lastname: Habibollahi
authors.forename: Hassan
authors.initials: H
authors.lastname: Hashemi
authors.forename: Shiva
authors.initials: S
authors.lastname: Mehravaran
mesh_terms: D057128:Aberrometry; D000180:Acrylic Resins; D000368:Aged; D015350:Contrast Sensitivity / Q000502:physiology; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D019654:Lens Implantation, Intraocular; D007910:Lenses, Intraocular; D008297:Male; D018918:Phacoemulsification; D011446:Prospective Studies; D019591:Pseudophakia / Q000503:physiopathology*; D012029:Refraction, Ocular / Q000502:physiology; D014792:Visual Acuity / Q000502:physiology*
chemical_list: D000180:Acrylic Resins