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Global estimates on the number of people blind or visually impaired by glaucoma: a meta-analysis from 2000 to 2020

  • Vision Loss Expert Group of the Global Burden of Disease Study
  • , GBD 2019 Blindness and Vision Impairment Collaborators
  • Anglia Ruskin University
  • Heidelberg University 
  • Harvard University
  • 559 New Colony
  • Université de Bourgogne
  • Cambridge University Hospitals NHS Foundation Trust
  • Universidade Federal de São Paulo
  • University of Calgary
  • Vita-Salute San Raffaele University
  • Eating Disorders Unit
  • Université de Poitiers
  • CHU de Poitiers
  • Institute for Eye Research
  • University of New South Wales
  • University of Melbourne
  • Bashkir State Medical University
  • King's College London
  • Guy's and St Thomas' NHS Foundation Trust
  • National University of Singapore
  • Singapore National Eye Center
  • Queen's University Belfast
  • ORBIS International
  • Sun Yat-Sen University
  • University of Michigan, Ann Arbor
  • Australian College of Optometry
  • Universidade de São Paulo
  • University College London
  • Medical Research Foundation, Chennai
  • Stanford University
  • Associated Ophthalmologists of Monastir
  • Myungsung Medical College
  • Addis Ababa University
  • Sight for Souls
  • University of Monastir
  • L.V. Prasad Eye Institute India
  • University of Rochester
  • University of Texas Southwestern Medical Center
  • HelpMeSee
  • University of Miami
  • University of Utah
  • Nova Southeastern University
  • University of KwaZulu-Natal
  • University of Social Sciences Lodz
  • Johns Hopkins University
  • Aristotle University of Thessaloniki
  • University of Crete
  • Capital Medical University
  • University of Oxford
  • Institute of Molecular and Clinical Ophthalmology Basel
  • University of Adelaide
  • Suraj Eye Institute
  • Université Bourgogne Franche-Comté
  • Flinders University

Research output: Contribution to journalArticlepeer-review

109 Citations (Scopus)
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Abstract

Objectives: To estimate global and regional trends from 2000 to 2020 of the number of persons visually impaired by glaucoma and their proportion of the total number of vision-impaired individuals. Methods: A systematic review and meta-analysis of published population studies and grey literature from 2000 to 2020 was carried out to estimate global and regional trends in number of people with vision loss due to glaucoma. Moderate or severe vision loss (MSVI) was defined as visual acuity of 6/60 or better but <6/18 (moderate) and visual acuity of 3/60 or better but <6/60 (severe vision loss). Blindness was defined as presenting visual acuity <3/60. Results: Globally, in 2020, 3.61 million people were blind and nearly 4.14 million were visually impaired by glaucoma. Glaucoma accounted for 8.39% (95% uncertainty intervals [UIs]: 6.54, 10.29) of all blindness and 1.41% (95% UI: 1.10, 1.75) of all MSVI. Regionally, the highest proportion of blindness relating to glaucoma was found in high-income countries (26.12% [95% UI: 20.72, 32.09]), while the region with the highest age-standardized prevalence of glaucoma-related blindness and MSVI was Sub-Saharan Africa. Between 2000 and 2020, global age-standardized prevalence of glaucoma-related blindness among adults ≥50 years decreased by 26.06% among males (95% UI: 25.87, 26.24), and by 21.75% among females (95% UI: 21.54, 21.96), while MSVI due to glaucoma increased by 3.7% among males (95% UI: 3.42, 3.98), and by 7.3% in females (95% UI: 7.01, 7.59). Conclusions: Within the last two decades, glaucoma has remained a major cause of blindness globally and regionally.

Original languageEnglish
Pages (from-to)2036-2046
Number of pages11
JournalEye (Basingstoke)
Volume38
Issue number11
DOIs
Publication statusPublished - Aug 2024

Bibliographical note

Publisher Copyright:
© The Author(s) 2024.

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