Journal ArticleDOI
Global Vision Impairment and Blindness Due to Uncorrected Refractive Error, 1990-2010.
Kovin Naidoo,Janet Leasher,Rupert R A Bourne,Seth Flaxman,Jost B. Jonas,Jill E Keeffe,Hans Limburg,Konrad Pesudovs,Holly Price,Richard A. White,Tien Yin Wong,Hugh R. Taylor,Serge Resnikoff +12 more
TLDR
It is concluded that in 2010, uncorrected refractive error continues as the leading cause of vision impairment and the second lead cause of blindness worldwide, affecting a total of 108 million people or 1 in 90 persons.Abstract:
The purpose of this systematic review was to estimate worldwide the number of people with moderate and severe visual impairment (MSVI; presenting visual acuity <6/18, ≥3/60) or blindness (presenting visual acuity <3/60) due to uncorrected refractive error (URE), to estimate trends in prevalence from 1990 to 2010, and to analyze regional differences. The review focuses on uncorrected refractive error which is now the most common cause of avoidable visual impairment globally. : The systematic review of 14,908 relevant manuscripts from 1990 to 2010 using Medline, Embase, and WHOLIS yielded 243 high-quality, population-based cross-sectional studies which informed a meta-analysis of trends by region. The results showed that in 2010, 6.8 million (95% confidence interval [CI]: 4.7-8.8 million) people were blind (7.9% increase from 1990) and 101.2 million (95% CI: 87.88-125.5 million) vision impaired due to URE (15% increase since 1990), while the global population increased by 30% (1990-2010). The all-age age-standardized prevalence of URE blindness decreased 33% from 0.2% (95% CI: 0.1-0.2%) in 1990 to 0.1% (95% CI: 0.1-0.1%) in 2010, whereas the prevalence of URE MSVI decreased 25% from 2.1% (95% CI: 1.6-2.4%) in 1990 to 1.5% (95% CI: 1.3-1.9%) in 2010. In 2010, URE contributed 20.9% (95% CI: 15.2-25.9%) of all blindness and 52.9% (95% CI: 47.2-57.3%) of all MSVI worldwide. The contribution of URE to all MSVI ranged from 44.2 to 48.1% in all regions except in South Asia which was at 65.4% (95% CI: 62-72%). : We conclude that in 2010, uncorrected refractive error continues as the leading cause of vision impairment and the second leading cause of blindness worldwide, affecting a total of 108 million people or 1 in 90 persons.read more
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Journal ArticleDOI
Global and regional estimates of prevalence of refractive errors: Systematic review and meta-analysis
Hassan Hashemi,Akbar Fotouhi,Abbasali Yekta,Reza Pakzad,Hadi Ostadimoghaddam,Mehdi Khabazkhoob +5 more
TL;DR: Astigmatism was the most common refractive errors in children and adults followed by hyperopia and myopia and the highest prevalence of myopia was seen in South-East Asian adults.
Journal ArticleDOI
Number of People Blind or Visually Impaired by Glaucoma Worldwide and in World Regions 1990 - 2010: A Meta-Analysis
Rupert R A Bourne,Hugh R. Taylor,Seth Flaxman,Jill E Keeffe,Janet L Leasher,Kovin Naidoo,Konrad Pesudovs,Richard A. White,Tien Yin Wong,Serge Resnikoff,Jost B. Jonas +10 more
TL;DR: Assessing the number of individuals visually impaired or blind due to glaucoma and to examine regional differences and temporal changes in this parameter for the period from 1990 to 2012 found figures were lower in regions with younger populations than in high-income regions with relatively old populations.
Journal ArticleDOI
Prevalence and causes of vision loss in China from 1990 to 2019: findings from the Global Burden of Disease Study 2019
Tingling Xu,Bingsong Wang,Hua Liu,Haidong Wang,Peng Yin,Wenlan Dong,Jianhong Li,Ya Xing Wang,Mayinuer Yusufu,Paul S Briant,Nickolas Reinig,Charlie Ashbaugh,Jaimie D. Adelson,Theo Vos,Rupert R A Bourne,Rupert R A Bourne,Ningli Wang,Maigeng Zhou +17 more
TL;DR: Although a comprehensive national policy to prevent blindness is in place, public awareness of visual health needs improving, and reducing the prevalence of moderate and severe vision impairment should be prioritised in future work.
Journal ArticleDOI
Impact of refractive error on quality of life: a qualitative study.
TL;DR: This study qualitatively explores the impact of refractive error on adults, particularly after correction, and the importance of prior experience in decision-making.
Journal ArticleDOI
Definition of blindness under National Programme for Control of Blindness: Do we need to revise it?
TL;DR: The appropriate modifications should be made in the NPCB definition of blindness to make it consistent with the WHO definition, to assess the impact on the epidemiological status of blindness and visual impairment in India.
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