title: The effect of glasses on visual function following cataract surgery in a cataract camp.
abstract: OBJECTIVE
  To investigate visual and functional impact of glasses following cataract surgery in a high-volume cataract camp as measured by the World Health Organization Prevention of Blindness Visual Function Questionnaire (WHO/PBD-VFQ-20).
  
  
  METHODS
  Subjects were administered the WHO/PBD-VFQ three times: (1) preoperatively; (2) 3 months postoperatively, before glasses; and (3) 6 months postoperatively, after 3 months with glasses. Patients were given prescription glasses or +2.50 readers at the 3-month follow-up.
  
  
  RESULTS
  315 patients enrolled in the study; 113 patients had complete WHO/PBD-VFQ and visual acuity data from all three administrations. The mean preoperative visual acuity in the surgical eye was 20/327. Following cataract surgery but before glasses, visual acuity improved to 20/57. Total WHO/PBD-VFQ and subscale scores improved significantly at the 3-month point. With glasses, visual acuity improved to 20/43. Total WHO/PBD-VFQ scores did not change following glasses, although the overall and near vision subscales did improve significantly. Glasses were worn once per week or less in 56% of patients.
  
  
  CONCLUSIONS
  Postoperative glasses result in modest improvements in visual acuity. Total WHO/PBD-VFQ scores did not change significantly following glasses, but the overall and near vision subscales did improve. The net beneficial effect of glasses was small relative to cataract surgery itself.
authors.affiliation: Harvard Medical School, Boston, MA, USA.
authors.forename: J
authors.initials: J
authors.lastname: Maki
authors.forename: S
authors.initials: S
authors.lastname: Kusakul
authors.forename: K
authors.initials: K
authors.lastname: Morley
authors.forename: T
authors.initials: T
authors.lastname: Sanguansak
authors.forename: J
authors.initials: J
authors.lastname: Seddon
authors.forename: L
authors.initials: L
authors.lastname: Hartung
authors.forename: M
authors.initials: M
authors.lastname: Morley
mesh_terms: D000368:Aged; D002387:Cataract Extraction / Q000534:rehabilitation*; D003906:Developing Countries; D005139:Eyeglasses; D005260:Female; D005500:Follow-Up Studies; D006305:Health Status Indicators; D006801:Humans; D008297:Male; D008875:Middle Aged; D011182:Postoperative Care / Q000379:methods; D011788:Quality of Life; D014792:Visual Acuity