title: Impact of bilateral cataract surgery on vision-related activity limitations.
abstract: OBJECTIVE
  To evaluate patients' vision-related activity limitation before and after bilateral cataract surgery using the German version of the Catquest-9SF questionnaire.
  
  
  METHODS
  Hanusch Hospital, Vienna, Austria, and Ophthalmic Clinic, Minden, Germany.
  
  
  METHODS
  Questionnaire development.
  
  
  METHODS
  This prospective 2-center study included patients who were scheduled for bilateral cataract surgery and attended their preassessment appointment approximately 1 week before cataract surgery. All patients self-administered the Catquest-9SF at the preassessment session and a second time 3 months after cataract surgery. The questionnaire includes 9 items and is a revised short form of the Catquest, scored using Rasch analysis. The Catquest-9SF includes questions concerning vision-associated problems in everyday life, general satisfaction with vision, and difficulties performing activities.
  
  
  RESULTS
  The study comprised 210 patients, 120 in Austria and 90 in Germany. The mean age of all patients was 74.1 years (range 41 to 92 years). Patients mostly had difficulties doing handwork (42%) or recognizing uneven surfaces (30%). Sixty percent of the patients in Austria and approximately 50% in Germany were very unsatisfied with their vision preoperatively. Postoperatively, all patients recognized a subjective improvement in their vision.
  
  
  CONCLUSIONS
  Patients having bilateral cataract surgery achieved marked improvements in vision-related activity limitation and satisfaction with vision. A subset of patients with less vision-related activity limitation before surgery was satisfied with first-eye surgery only.
authors.affiliation: Vienna Institute for Research in Ocular Surgery, Karl Landsteiner Institute, Hanusch Hospital, Vienna, Austria.
authors.forename: Annette
authors.initials: A
authors.lastname: Harrer
authors.forename: Kristian
authors.initials: K
authors.lastname: Gerstmeyer
authors.forename: Nino
authors.initials: N
authors.lastname: Hirnschall
authors.forename: Konrad
authors.initials: K
authors.lastname: Pesudovs
authors.forename: Mats
authors.initials: M
authors.lastname: Lundström
authors.forename: Oliver
authors.initials: O
authors.lastname: Findl
mesh_terms: D000203:Activities of Daily Living; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002386:Cataract / Q000503:physiopathology*; D004185:Disability Evaluation; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D017060:Patient Satisfaction; D018918:Phacoemulsification; D011446:Prospective Studies; D011788:Quality of Life; D018434:Sickness Impact Profile; D011795:Surveys and Questionnaires; D016896:Treatment Outcome; D014786:Vision Disorders / Q000503:physiopathology*; D014792:Visual Acuity / Q000502:physiology