RT Journal Article
SR Electronic
T1 Prevalence and causes of vision loss in East Asia in 2015: magnitude, temporal trends and projections
JF British Journal of Ophthalmology
JO Br J Ophthalmol
FD BMJ Publishing Group Ltd.
SP 616
OP 622
DO 10.1136/bjophthalmol-2018-313308
VO 104
IS 5
A1 Ching-Yu Cheng
A1 Ningli Wang
A1 Tien Y Wong
A1 Nathan Congdon
A1 Mingguang He
A1 Ya Xing Wang
A1 Tasanee Braithwaite
A1 Robert J Casson
A1 Maria Vittoria Cicinelli
A1 Aditi Das
A1 Seth R Flaxman
A1 Jost B Jonas
A1 Jill Elizabeth Keeffe
A1 John H Kempen
A1 Janet Leasher
A1 Hans Limburg
A1 Kovin Naidoo
A1 Konrad Pesudovs
A1 Serge Resnikoff
A1 Alexander J Silvester
A1 Nina Tahhan
A1 Hugh R Taylor
A1 Rupert R A Bourne
A1 ,
YR 2020
UL http://bjo.bmj.com/content/104/5/616.abstract
AB Background To determine the prevalence and causes of blindness and vision impairment (VI) in East Asia in 2015 and to forecast the trend to 2020.Methods Through a systematic literature review and meta-analysis, we estimated prevalence of blindness (presenting visual acuity <3/60 in the better eye), moderate-to-severe vision impairment (MSVI; 3/60≤presenting visual acuity <6/18), mild vision impairment (mild VI: 6/18≤presenting visual acuity <6/12) and uncorrected presbyopia for 1990, 2010, 2015 and 2020. A total of 44 population-based studies were included.Results In 2015, age-standardised prevalence of blindness, MSVI, mild VI and uncorrected presbyopia was 0.37% (80% uncertainty interval (UI) 0.12%–0.68%), 3.06% (80% UI 1.35%–5.16%) and 2.65% (80% UI 0.92%–4.91%), 32.91% (80% UI 18.72%–48.47%), respectively, in East Asia. Cataract was the leading cause of blindness (43.6%), followed by uncorrected refractive error (12.9%), glaucoma, age-related macular degeneration, corneal diseases, trachoma and diabetic retinopathy (DR). The leading cause for MSVI was uncorrected refractive error, followed by cataract, age-related macular degeneration, glaucoma, corneal disease, trachoma and DR. The burden of VI due to uncorrected refractive error, cataracts, glaucoma and DR has continued to rise over the decades reported.Conclusions Addressing the public healthcare barriers for cataract and uncorrected refractive error can help eliminate almost 57% of all blindness cases in this region. Therefore, public healthcare efforts should be focused on effective screening and effective patient education, with access to high-quality healthcare.