title: Achieving target refraction after cataract surgery.
abstract: OBJECTIVE
  To evaluate the difference between target and actual refraction after phacoemulsification and intraocular lens implantation at an academic teaching institution's Comprehensive Ophthalmology Service.
  
  
  METHODS
  Retrospective study.
  
  
  METHODS
  We examined 1275 eye surgeries for this study.
  
  
  METHODS
  All consecutive cataract surgeries were included if they were performed by an attending or resident surgeon from January through December 2010. Postoperative refractions were compared with preoperative target refractions. Patients were excluded if they did not have a preoperative target refraction documented or if they did not have a recorded postoperative manifest refraction within 90 days.
  
  
  METHODS
  The main outcome measure was percentage of cases achieving a postoperative spherical equivalent ± 1.0 diopter (D) of target spherical equivalent.
  
  
  RESULTS
  We performed 1368 cataract surgeries from January through December of 2010. Of these, 1275 (93%) had sufficient information for analysis. Of the included cases, 94% (1196 of 1275) achieved ± 1.0 D of target refraction by 90 days after cataract surgery.
  
  
  CONCLUSIONS
  This paper establishes a new benchmark for a teaching hospital, where 94% of patients achieved within 1.0 D of target refraction after cataract surgery. The refractive outcomes after cataract surgery at this academic teaching institution were higher than average international benchmarks.
authors.affiliation: Massachusetts Eye and Ear Infirmary, Boston, Massachusetts.
authors.forename: Shira S
authors.initials: SS
authors.lastname: Simon
authors.affiliation: Massachusetts Eye and Ear Infirmary, Boston, Massachusetts.
authors.forename: Yewlin E
authors.initials: YE
authors.lastname: Chee
authors.affiliation: Massachusetts Eye and Ear Infirmary, Boston, Massachusetts.
authors.forename: Ramez I
authors.initials: RI
authors.lastname: Haddadin
authors.affiliation: Massachusetts Eye and Ear Infirmary, Boston, Massachusetts.
authors.forename: Peter B
authors.initials: PB
authors.lastname: Veldman
authors.affiliation: Massachusetts Eye and Ear Infirmary, Boston, Massachusetts.
authors.forename: Sheila
authors.initials: S
authors.lastname: Borboli-Gerogiannis
authors.affiliation: Massachusetts Eye and Ear Infirmary, Boston, Massachusetts.
authors.forename: Stacey C
authors.initials: SC
authors.lastname: Brauner
authors.affiliation: Massachusetts Eye and Ear Infirmary, Boston, Massachusetts.
authors.forename: Kenneth K
authors.initials: KK
authors.lastname: Chang
authors.affiliation: Massachusetts Eye and Ear Infirmary, Boston, Massachusetts.
authors.forename: Sherleen H
authors.initials: SH
authors.lastname: Chen
authors.affiliation: Massachusetts Eye and Ear Infirmary, Boston, Massachusetts.
authors.forename: Matthew F
authors.initials: MF
authors.lastname: Gardiner
authors.affiliation: Massachusetts Eye and Ear Infirmary, Boston, Massachusetts.
authors.forename: Scott H
authors.initials: SH
authors.lastname: Greenstein
authors.affiliation: Massachusetts Eye and Ear Infirmary, Boston, Massachusetts.
authors.forename: Carolyn E
authors.initials: CE
authors.lastname: Kloek
authors.affiliation: Massachusetts Eye and Ear Infirmary, Boston, Massachusetts. Electronic address: teresa_chen@meei.harvard.edu.
authors.forename: Teresa C
authors.initials: TC
authors.lastname: Chen
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D019985:Benchmarking; D005260:Female; D006784:Hospitals, Teaching; D006801:Humans; D019654:Lens Implantation, Intraocular; D007910:Lenses, Intraocular; D008297:Male; D008875:Middle Aged; D018918:Phacoemulsification; D011184:Postoperative Period; D019591:Pseudophakia / Q000503:physiopathology*; D012029:Refraction, Ocular / Q000502:physiology*; D012189:Retrospective Studies; D016896:Treatment Outcome; D014792:Visual Acuity / Q000502:physiology*