title: Implantation of a diffractive trifocal intraocular lens: one-year follow-up.
abstract: OBJECTIVE
  To evaluate the visual, refractive, contrast-sensitivity, and aberrometric outcomes during a 1-year follow-up after implantation of a trifocal intraocular lens (IOL).
  
  
  METHODS
  Premium Clinic, Teplice, Czech Republic.
  
  
  METHODS
  Prospective case series.
  
  
  METHODS
  This study included eyes of patients having cataract surgery with implantation of the trifocal IOL model AT Lisa tri 839MP. Distance, intermediate (66 and 80 cm), and near (33 and 40 cm) vision; contrast sensitivity; aberrometric outcomes; and the defocus curve were evaluated during a 12-month follow-up. The level of posterior capsule opacification (PCO) was also evaluated.
  
  
  RESULTS
  In 120 eyes (60 patients), 1 month postoperatively, an improvement was observed in all visual parameters (P ≤ .03) except corrected near and intermediate visual acuities (both P ≥ .05). From 1 month to 12 months postoperatively, small but statistically significant changes were observed in uncorrected and corrected distance and near visual acuities (all P ≤ .03) and in uncorrected intermediate visual acuity (P = .01). In the defocus curve, no significant differences were found between visual acuities corresponding to defocus levels of -1.0 diopter (D) and -2.0 D (P = .22). The level of ocular spherical aberration decreased statistically significantly at 6 months (P < .001). Ocular and internal higher-order aberrations increased minimally but significantly from 6 to 12 months postoperatively (P < .001). The mean 12-month PCO score was 0.32 ± 0.44 (SD). Four eyes (3.3%) required neodymium:YAG capsulotomy.
  
  
  CONCLUSIONS
  The trifocal IOL provided complete and stable visual restoration after cataract surgery during a 12-month follow-up, with good levels of visual quality.
  
  
  BACKGROUND
  No author has a financial or proprietary interest in any material or method mentioned.
authors.affiliation: From the Premium Clinic (Mojzis, Piñero), Teplice, and the Eye Department of Regional Hospital (Mojzis, Majerova, Hrckova), Havlickuv Brod, Czech Republic; the Department of Optics, Pharmacology and Anatomy (Piñero), University of Alicante, Alicante, Spain.
authors.forename: Peter
authors.initials: P
authors.lastname: Mojzis
authors.affiliation: From the Premium Clinic (Mojzis, Piñero), Teplice, and the Eye Department of Regional Hospital (Mojzis, Majerova, Hrckova), Havlickuv Brod, Czech Republic; the Department of Optics, Pharmacology and Anatomy (Piñero), University of Alicante, Alicante, Spain.
authors.forename: Katarina
authors.initials: K
authors.lastname: Majerova
authors.affiliation: From the Premium Clinic (Mojzis, Piñero), Teplice, and the Eye Department of Regional Hospital (Mojzis, Majerova, Hrckova), Havlickuv Brod, Czech Republic; the Department of Optics, Pharmacology and Anatomy (Piñero), University of Alicante, Alicante, Spain.
authors.forename: Lucia
authors.initials: L
authors.lastname: Hrckova
authors.affiliation: From the Premium Clinic (Mojzis, Piñero), Teplice, and the Eye Department of Regional Hospital (Mojzis, Majerova, Hrckova), Havlickuv Brod, Czech Republic; the Department of Optics, Pharmacology and Anatomy (Piñero), University of Alicante, Alicante, Spain. Electronic address: david.pinyero@ua.es.
authors.forename: David P
authors.initials: DP
authors.lastname: Piñero
mesh_terms: D057128:Aberrometry; D000328:Adult; D000368:Aged; D058442:Capsule Opacification / Q000175:diagnosis; D015350:Contrast Sensitivity / Q000502:physiology*; D057108:Corneal Wavefront Aberration / Q000503:physiopathology; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D019654:Lens Implantation, Intraocular; D007910:Lenses, Intraocular; D008297:Male; D008875:Middle Aged; D018918:Phacoemulsification; D011446:Prospective Studies; D011474:Prosthesis Design; D019591:Pseudophakia / Q000503:physiopathology*; D012029:Refraction, Ocular / Q000502:physiology*; D014792:Visual Acuity / Q000502:physiology*