Prevalence of refractive error, presbyopia, and unmet need of spectacle coverage in a northern district of Bangladesh: Rapid Assessment of Refractive Error study

Ophthalmic Epidemiol. 2018 Apr;25(2):126-132. doi: 10.1080/09286586.2017.1370119. Epub 2017 Oct 4.

Abstract

Purpose: To determine the prevalence of refractive error (RE), presbyopia, spectacle coverage, and barriers to uptake optical services in Bangladesh.

Method: Rapid assessment of refractive error (RARE) study following the RARE protocol was conducted in a northern district (i.e., Sirajganj) of Bangladesh (January 2010-December 2012). People aged 15-49 years were selected, and eligible participants had habitual distance and near visual acuity (VA) measured and ocular examinations were performed in those with VA<6/18. Those with phakic eyes with VA <6/18, but improving to ≥6/18 with pinhole or optical correction, were considered as RE and people aged ≥35 years with binocular unaided near vision of <N8 were considered presbyopic.

Result: A total of 3,043 people were examined, of which 143 had RE (4.7%, 95% CI: 3.9-5.5). Among people aged ≥35 years (n = 1402), 869 had presbyopia (62.0, 95% CI: 59.4-64.5). Spectacle coverage for RE and presbyopia were 13.3% (95% CI 7.7-18.9) and 3.2% (95% CI 2.2-4.6), respectively. "Unaware of the problem" was the main reason for not utilizing any optical services among the people with RE (92.8%) and presbyopia (89.5%). Extrapolating the survey findings to the 2011 national census data, the magnitude of RE among people aged 15-49 years in Bangladesh is estimated to be 3,493,980 people (95% CI 2,899,260-4,088,700), of whom 3,029,280 people do not use any spectacles.

Conclusion: The burden of RE and presbyopia is substantial in Bangladesh. Improving awareness and availability of refraction services is required to correct REs and presbyopia in Bangladesh.

Keywords: Bangladesh; Rapid assessment; presbyopia; refractive error.

Publication types

  • Multicenter Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adolescent
  • Adult
  • Bangladesh / epidemiology
  • Cross-Sectional Studies
  • Eyeglasses / supply & distribution*
  • Female
  • Humans
  • Male
  • Middle Aged
  • Presbyopia / epidemiology*
  • Presbyopia / physiopathology
  • Presbyopia / therapy
  • Prevalence
  • Refraction, Ocular / physiology*
  • Refractive Errors / epidemiology
  • Refractive Errors / physiopathology
  • Refractive Errors / therapy
  • Retrospective Studies
  • Risk Assessment / methods*
  • Young Adult