title: Quantitative evaluation of visual function 12 months after bilateral implantation of a diffractive trifocal IOL.
abstract: OBJECTIVE
  To quantitatively evaluate visual function 12 months after bilateral implantation of the Physiol FineVision® trifocal intraocular lens (IOL) and to compare these results with those obtained in the first postoperative month.
  
  
  METHODS
  In this prospective case series, 20 eyes of 10 consecutive patients were included. Monocular and binocular, uncorrected and corrected visual acuities (distance, near, and intermediate) were measured. Metrovision® was used to test contrast sensitivity under static and dynamic conditions, both in photopic and low-mesopic settings. The same software was used for pupillometry and glare evaluation. Motion, achromatic, and chromatic contrast discrimination were tested using 2 innovative psychophysical tests. A complete ophthalmologic examination was performed preoperatively and at 1, 3, 6, and 12 months postoperatively. Psychophysical tests were performed 1 month after surgery and repeated 12 months postoperatively.
  
  
  RESULTS
  Final distance uncorrected visual acuity (VA) was 0.00 ± 0.08 and distance corrected VA was 0.00 ± 0.05 logMAR. Distance corrected near VA was 0.00 ± 0.09 and distance corrected intermediate VA was 0.00 ± 0.06 logMAR. Glare testing, pupillometry, contrast sensitivity, motion, and chromatic and achromatic contrast discrimination did not differ significantly between the first and last visit (p&gt;0.05) or when compared to an age-matched control group (p&gt;0.05).
  
  
  CONCLUSIONS
  The Physiol FineVision® trifocal IOL provided satisfactory full range of vision and quality of vision parameters 12 months after surgery. Visual acuity and psychophysical tests did not vary significantly between the first and last visit.
authors.affiliation: Department of Ophthalmology, Centro Hospitalar e Universitário de Coimbra (CHUC), Coimbra - Portugal.
authors.forename: João P
authors.initials: JP
authors.lastname: Marques
authors.affiliation: Department of Ophthalmology, Centro Hospitalar e Universitário de Coimbra (CHUC), Coimbra - Portugal.|Faculty of Medicine, University of Coimbra (FMUC), Coimbra - Portugal.
authors.forename: Andreia M
authors.initials: AM
authors.lastname: Rosa
authors.affiliation: Visual Neuroscience Laboratory of the Institute for Biomedical Imaging and Life Sciences (IBILI), University of Coimbra, Coimbra - Portugal.|Institute for Nuclear Sciences Applied to Health (ICNAS), University of Coimbra, Coimbra - Portugal.
authors.forename: Bruno
authors.initials: B
authors.lastname: Quendera
authors.affiliation: Visual Neuroscience Laboratory of the Institute for Biomedical Imaging and Life Sciences (IBILI), University of Coimbra, Coimbra - Portugal.
authors.forename: Fátima
authors.initials: F
authors.lastname: Silva
authors.affiliation: Department of Ophthalmology, Centro Hospitalar e Universitário de Coimbra (CHUC), Coimbra - Portugal.
authors.forename: Joaquim
authors.initials: J
authors.lastname: Mira
authors.affiliation: Department of Ophthalmology, Centro Hospitalar e Universitário de Coimbra (CHUC), Coimbra - Portugal.|Faculty of Medicine, University of Coimbra (FMUC), Coimbra - Portugal.
authors.forename: Conceição
authors.initials: C
authors.lastname: Lobo
authors.affiliation: Faculty of Medicine, University of Coimbra (FMUC), Coimbra - Portugal.|Visual Neuroscience Laboratory of the Institute for Biomedical Imaging and Life Sciences (IBILI), University of Coimbra, Coimbra - Portugal.|Institute for Nuclear Sciences Applied to Health (ICNAS), University of Coimbra, Coimbra - Portugal.
authors.forename: Miguel
authors.initials: M
authors.lastname: Castelo-Branco
authors.affiliation: Department of Ophthalmology, Centro Hospitalar e Universitário de Coimbra (CHUC), Coimbra - Portugal.|Faculty of Medicine, University of Coimbra (FMUC), Coimbra - Portugal.
authors.forename: Joaquim N
authors.initials: JN
authors.lastname: Murta
mesh_terms: D000368:Aged; D055253:Color Vision / Q000502:physiology; D015350:Contrast Sensitivity / Q000502:physiology; D005260:Female; D019466:Glare; D006801:Humans; D019654:Lens Implantation, Intraocular; D007910:Lenses, Intraocular; D008297:Male; D008875:Middle Aged; D018918:Phacoemulsification; D011184:Postoperative Period; D011446:Prospective Studies; D011474:Prosthesis Design; D019591:Pseudophakia / Q000503:physiopathology*; D012984:Software; D015348:Vision, Binocular / Q000502:physiology*; D014792:Visual Acuity / Q000502:physiology*