title: Comparison of visual function after bilateral implantation of inferior sector-shaped near-addition and diffractive-refractive multifocal IOLs.
abstract: OBJECTIVE
  To compare visual function after bilateral implantation of multifocal Lentis Mplus LS-312 (Group A) or Acrysof Restor SN6AD1 (Group B) intraocular lenses (IOLs).
  
  
  METHODS
  Ophthalmology Unit, Centro Hospitalar e Universitário de Coimbra, and Visual Neuroscience Laboratory, IBILI, Faculty of Medicine, University of Coimbra, Coimbra, Portugal.
  
  
  METHODS
  Comparative case series.
  
  
  METHODS
  Patients between 49 years and 76 years had bilateral cataract surgery with multifocal IOL implantation. Patients were evaluated preoperatively and 3 months postoperatively for distance, intermediate, and near visual acuities; static photopic and mesopic contrast sensitivity; and visual acuity under a glare source using the Metrovision contrast sensitivity platform. Color vision was evaluated with the Cambridge Colour Test.
  
  
  RESULTS
  Group A comprised 56 eyes and Group B, 44 eyes. Visual and refractive results were comparable between the 2 groups. Photopic contrast sensitivity was significantly better in Group B at intermediate (2.2 cycles per degree [cpd] and 3.4 cpd) and high (7.1 cpd and 23.6 cpd) spatial frequencies. Under low mesopic conditions (0.08 candelas/m(2)), differences were significant at 1.1 cpd and 2.2 cpd spatial frequencies. There were no differences in visual acuity under a glare source or in color vision.
  
  
  CONCLUSIONS
  Both IOLs provided good distance, intermediate, and near visual acuities. Visual acuity under a glare source and color vision were similar in the 2 groups. However, photopic and low mesopic contrast sensitivities were better in Group B, particularly for intermediate spatial frequencies, which are important for night driving.
authors.affiliation: From the Ophthalmology Unit (Rosa, Lobo, Mira, Farinha, Póvoa, Murta), Centro Hospitalar e Universitário de Coimbra, and the Faculty of Medicine (Rosa, Lobo, Murta) and Visual Neuroscience Laboratory (Silva, Castelo-Branco), IBILI, Faculty of Medicine, Coimbra University, Coimbra, Portugal.
authors.forename: Andreia Martins
authors.initials: AM
authors.lastname: Rosa
authors.forename: Maria Fátima
authors.initials: MF
authors.lastname: Loureiro Silva
authors.forename: Conceição
authors.initials: C
authors.lastname: Lobo
authors.forename: Joaquim Bernardes
authors.initials: JB
authors.lastname: Mira
authors.forename: Cláudia Louro
authors.initials: CL
authors.lastname: Farinha
authors.forename: João Alberto
authors.initials: JA
authors.lastname: Póvoa
authors.forename: Miguel
authors.initials: M
authors.lastname: Castelo-Branco
authors.forename: Joaquim Neto
authors.initials: JN
authors.lastname: Murta
mesh_terms: D000368:Aged; D055253:Color Vision / Q000502:physiology*; D015350:Contrast Sensitivity / Q000502:physiology*; D019781:Corneal Topography; D005260:Female; D019466:Glare; D006801:Humans; D019654:Lens Implantation, Intraocular; D007910:Lenses, Intraocular; D008297:Male; D033401:Microscopy, Acoustic; D008875:Middle Aged; D018918:Phacoemulsification; D011446:Prospective Studies; D011474:Prosthesis Design; D019591:Pseudophakia / Q000503:physiopathology*; D016896:Treatment Outcome; D014792:Visual Acuity / Q000502:physiology*