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Br J Ophthalmol 2008;92:1026-1030 doi:10.1136/bjo.2007.134791
  • Original Article

Quality of life and visual impairment from cataract in Satkhira district, Bangladesh

  1. S Polack1,
  2. H Kuper1,
  3. Z Wadud2,
  4. A Fletcher1,
  5. A Foster1
  1. 1
    London School of Hygiene & Tropical Medicine, London, UK
  2. 2
    Child Sight Foundation, Dhaka, Bangladesh
  1. Ms S Polack, London School of Hygiene & Tropical Medicine, Keppel Street, London WC1E 7HT, UK; sarah.polack{at}lshtm.ac.uk
  • Accepted 11 May 2008

Abstract

Aims: To evaluate a vision-related quality of life (QOL) scale (World Health Organization Prevention of Blindness and Deafness Visual Function 20—WHO/PBD VF20) and explore the impact of cataract visual impairment on vision- and health-related QOL in people ≥50 years from Satkhira district, Bangladesh.

Method: 217 cases visually impaired from cataract and 280 controls with normal vision were interviewed about vision-related QOL (WHO/PBD VF20), generic health-related QOL (EuroQol generic health instrument, EQ-5D) and socio-demographic information. The validity and reliability of the WHO/PBD VF20 were evaluated using standard psychometric tests and criteria.

Results: Evidence for validity and reliability of the WHO/PBD VF20 was found. Worsening general functioning, psychosocial and overall eyesight scores were associated with increased visual loss (p for trend<0.001). Cases were more likely to report problems with each EQ-5D descriptive domain and had poorer self-rated health than controls with normal vision (p<0.001).

Conclusion: Demonstration of the validity and reliability of the WHO/PBD VF20 in this population supports its suitability as a tool for assessing vision-related QOL in low-income settings. The poorer health-related QOL in cases compared with controls suggests an impact of cataract visual impairment on perceived health and well-being, beyond vision-specific experience.

Footnotes

  • Funding: This study was funded by grants from Sight Savers International, Christian Blind Mission and Orbis International.

  • Competing interests: None.

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