title: Comparison of visual and refractive outcomes after bilateral implantation of toric intraocular lenses with or without a multifocal component.
abstract: OBJECTIVE
  To compare visual outcomes between patients with a multifocal toric intraocular lens (IOL) and those with a monofocal toric IOL.
  
  
  METHODS
  Hayashi Eye Hospital, Fukuoka, Japan.
  
  
  METHODS
  Prospective case-control series.
  
  
  METHODS
  Eyes with preoperative corneal astigmatism between 0.75 diopter (D) and 2.82 D scheduled for implantation of a diffractive multifocal toric IOL (Restor SND1T) or monofocal toric IOL (Acrysof SN6AT) were recruited. Three months postoperatively, visual acuity at various distances, contrast visual acuity, and refractive outcomes were examined.
  
  
  RESULTS
  Each group comprised 66 eyes (33 patients). Postoperatively, the mean refractive astigmatism decreased to 0.71 D in the multifocal group and 0.74 D in the monofocal group. The mean monocular and binocular uncorrected and corrected near visual acuity at 0.3 m and intermediate visual acuity at 0.5 m were significantly better in the multifocal group than in the monofocal group (P≤.0011). The uncorrected and corrected visual acuities at other distances were similar between groups except at 1.0 m. Binocular photopic and mesopic contrast visual acuities at high to moderate contrasts did not differ significantly between groups; however, acuities at low contrasts were worse in the multifocal group (P≤.0429).
  
  
  CONCLUSIONS
  Diffractive multifocal toric IOL implantation decreased refractive astigmatism to an acceptable range in eyes with moderate corneal astigmatism and provided useful visual acuity (≥20/40) at any distance and significantly better near and intermediate visual acuity than a monofocal toric IOL.
  
  
  BACKGROUND
  No author has a financial or proprietary interest in any material or method mentioned.
authors.affiliation: From Hayashi Eye Hospital, Fukuoka, Japan. Electronic address: hayashi-ken@hayashi.or.jp.
authors.forename: Ken
authors.initials: K
authors.lastname: Hayashi
authors.affiliation: From Hayashi Eye Hospital, Fukuoka, Japan.
authors.forename: Miki
authors.initials: M
authors.lastname: Masumoto
authors.affiliation: From Hayashi Eye Hospital, Fukuoka, Japan.
authors.forename: Minehiro
authors.initials: M
authors.lastname: Takimoto
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D001251:Astigmatism / Q000503:physiopathology*; D016022:Case-Control Studies; D015350:Contrast Sensitivity / Q000502:physiology; D005260:Female; 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*