title: New insight into visual function with aspherical intraocular lenses (IOLs): Tecnis ZCB00 and Acrysof SN60WF.
abstract: In this study, we investigated the visual performance of two aspherical intraocular lenses (IOLs), Tecnis ZCB00 and Acrysof SN60WF, by measuring high-order aberration, visual evoked potentials (VEP), retinal sensitivity, and fixation stability by MP-1 microperimetry and contrast sensitivity values. Twenty-two patients with age-related cataract were randomly allocated to either the Tecnis or the Acrysof group. All measurements were taken from patients of both groups 2 months postoperatively. Statistical analysis was performed with Student's t test, where P-values < 0.05 were considered significant. Results were not statistically significant with regard to high-order aberration, VEP, retinal sensitivity, and fixation stability. However, the contrast sensitivity values varied significantly between Tecnis ZCB00 and Acrysof SN60WF, with Tecnis ZCB00 performing better. The anterior aspherical surface design of the Tecnis IOL indicated better mesopic contrast sensitivity at mediate and high frequencies, ensuring a better quality of vision after cataract surgery.
authors.affiliation: Department of Ophthalmology, University La Sapienza, Polo Pontino, A. Fiorini Hospital, Terracina, Italy. serena.sal@hotmail.it
authors.forename: Serena
authors.initials: S
authors.lastname: Salvatore
authors.forename: Stefano
authors.initials: S
authors.lastname: Lupo
authors.forename: Marcella
authors.initials: M
authors.lastname: Nebbioso
authors.forename: Yu-Hui
authors.initials: YH
authors.lastname: Huang
authors.forename: Enzo Maria
authors.initials: EM
authors.lastname: Vingolo
mesh_terms: D057128:Aberrometry; D000368:Aged; D002387:Cataract Extraction; D015350:Contrast Sensitivity / Q000502:physiology; D005074:Evoked Potentials, Visual / Q000502:physiology; D005260:Female; D005403:Fixation, Ocular / Q000502:physiology; D006801:Humans; D019654:Lens Implantation, Intraocular; D007910:Lenses, Intraocular; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D019591:Pseudophakia / Q000503:physiopathology*; D016896:Treatment Outcome; D014792:Visual Acuity / Q000502:physiology*
references.citation: Am J Ophthalmol. 2004 Jun;137(6):988-92
references.pmid: 15183781
references.citation: J Cataract Refract Surg. 2005 Apr;31(4):712-7
references.pmid: 15899447
references.citation: J Cataract Refract Surg. 2007 Feb;33(2):210-6
references.pmid: 17276260
references.citation: Can J Ophthalmol. 2009 Jun;44(3):274-8
references.pmid: 19491981