title: Determinants of patient satisfaction and function related to vision following cataract surgery in eyes with no visually consequential ocular co-morbidity.
abstract: OBJECTIVE
  To investigate subjectively reported outcomes following cataract surgery and the relationships between such outcomes in the context of falling thresholds for cataract surgery.
  
  
  METHODS
  Large, private, non-refractive cataract practice, Institute of Eye Surgery, Whitfield Clinic, Waterford, Ireland
  
  
  METHODS
  Pre-operative, intra-operative and post-operative data of 2552 eyes undergoing phacoemulsification and implantation of the Tecnis(R) ZCB00 1-piece intraocular lens (IOL) by a single surgeon between July 2009 and October 2013 was analysed. Patients without visually consequential ocular co-morbidity completed two validated questionnaires, designed to assess subjectively perceived visual functioning and identify symptoms of dysphotopsia following cataract surgery.
  
  
  RESULTS
  54.8 % of questionnaire respondents were entirely satisfied (satisfaction 10/10) post-operatively, with 83.7 % reporting satisfaction of ≥7/10. Satisfaction was positively associated with patient age and negatively associated with spectacle dependence, dysphotopsia, and function related to vision (NEI VF-11) score. The mean (±standard deviation[SD]) dysphotopsia score was 1.36 (±1.9; scale 0-10), with 40 % of respondents reporting no dysphotopsia symptoms and 9.8 % reporting clinically meaningful dysphotopsia. The mean (±SD) National Eye Institute visual function-11 (NEI VF-11) score was 0.33 (±0.53; scale 0-4) and reduced function related to vision was associated with increasing severity of dysphotopsia symptoms. When linear regression was applied, 17.5 % of the variation in functionality was attributable to symptoms of dysphotopsia.
  
  
  CONCLUSIONS
  Dysphotopsia is an important determinant of a patient having difficulty with vision-related tasks following cataract surgery, and patient satisfaction is positively associated with patient age and negatively associated with spectacle in dependence, dysphotopsia and function related to the vision (NEI VF-11) score.
authors.affiliation: Biomedical Science Research Institute, University of Ulster, Coleraine, Northern Ireland, UK. clare@ivr.ie.|Institute of Eye Surgery and Institute of Vision Research, Whitfield Clinic, Suite 14, Cork Road, Waterford, Ireland. clare@ivr.ie.|Macular Pigment Research Group, Waterford Institute of Technology, Waterford, Ireland. clare@ivr.ie.
authors.forename: Clare
authors.initials: C
authors.lastname: Kirwan
authors.affiliation: Macular Pigment Research Group, Waterford Institute of Technology, Waterford, Ireland.
authors.forename: John M
authors.initials: JM
authors.lastname: Nolan
authors.affiliation: Macular Pigment Research Group, Waterford Institute of Technology, Waterford, Ireland.
authors.forename: Jim
authors.initials: J
authors.lastname: Stack
authors.affiliation: Biomedical Science Research Institute, University of Ulster, Coleraine, Northern Ireland, UK.
authors.forename: Tara C B
authors.initials: TC
authors.lastname: Moore
authors.affiliation: Institute of Eye Surgery and Institute of Vision Research, Whitfield Clinic, Suite 14, Cork Road, Waterford, Ireland.|Macular Pigment Research Group, Waterford Institute of Technology, Waterford, Ireland.
authors.forename: Stephen
authors.initials: S
authors.lastname: Beatty
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002386:Cataract / Q000503:physiopathology; D015897:Comorbidity; D005139:Eyeglasses; D005260:Female; D006801:Humans; D019654:Lens Implantation, Intraocular; D008297:Male; D008875:Middle Aged; D017060:Patient Satisfaction / Q000706:statistics & numerical data*; D018918:Phacoemulsification; D019591:Pseudophakia / Q000503:physiopathology*; D012684:Sensory Thresholds; D011795:Surveys and Questionnaires; D014786:Vision Disorders / Q000503:physiopathology* / Q000628:therapy; D014792:Visual Acuity / Q000502:physiology*; D055815:Young Adult
keywords: Cataract surgery; Dysphotopsia; NEI VF-11; Satisfaction; Tecnis IOL