TY - JOUR
T1 - New Systematic Review Methodology for Visual Impairment and Blindness for the 2010 Global Burden of Disease Study
AU - Bourne, R
AU - Price, Holly
AU - Taylor, Hugh
AU - Leasher, Janet
AU - Keeffe, Jill
AU - Glanville, Julie
AU - Sieving, Pamela
AU - khairallah, Moncef
AU - Wong, Tien
AU - Zheng, Y
AU - Matthew, Anu
AU - Katiyar, Suchitra
AU - Mascarenhas, Maya
AU - Stevens, Gretchen
AU - Resnikoff, Serge
AU - Gichuhi, Stephen
AU - Naidoo, Kovin
AU - Wallace, Diane
AU - Kymes, Steven
AU - Peters, Colleen
AU - Pesudovs, Konrad
AU - Braithwaite, Tasanee
AU - Limburg, Hans
PY - 2013
Y1 - 2013
N2 - Purpose: To describe a systematic review of population-based prevalence studies of visual impairment (VI) and blindness worldwide over the past 32 years that informs the Global Burden of Diseases, Injuries and Risk Factors Study. Methods: A systematic review (Stage 1) of medical literature from 1 January 1980 to 31 January 2012 identified indexed articles containing data on incidence, prevalence and causes of blindness and VI. Only cross-sectional population-based representative studies were selected from which to extract data for a database of age- and sex-specific data of prevalence of four distance and one near vision loss categories (presenting and best-corrected). Unpublished data and data from studies using rapid assessment methodology were later added (Stage 2). Results: Stage 1 identified 14,908 references, of which 204 articles met the inclusion criteria. Stage 2 added unpublished data from 44 rapid assessment studies and four other surveys. This resulted in a final dataset of 252 articles of 243 studies, of which 238 (98%) reported distance vision loss categories. A total of 37 studies of the final dataset reported prevalence of mild VI and four reported near VI. Conclusion: We report a comprehensive systematic review of over 30 years of VI/blindness studies. While there has been an increase in population-based studies conducted in the 2000s compared to previous decades, there is limited information from certain regions (eg, Central Africa and Central and Eastern Europe, and the Caribbean and Latin America), and younger age groups, and minimal data regarding prevalence of near vision and mild distance VI.
AB - Purpose: To describe a systematic review of population-based prevalence studies of visual impairment (VI) and blindness worldwide over the past 32 years that informs the Global Burden of Diseases, Injuries and Risk Factors Study. Methods: A systematic review (Stage 1) of medical literature from 1 January 1980 to 31 January 2012 identified indexed articles containing data on incidence, prevalence and causes of blindness and VI. Only cross-sectional population-based representative studies were selected from which to extract data for a database of age- and sex-specific data of prevalence of four distance and one near vision loss categories (presenting and best-corrected). Unpublished data and data from studies using rapid assessment methodology were later added (Stage 2). Results: Stage 1 identified 14,908 references, of which 204 articles met the inclusion criteria. Stage 2 added unpublished data from 44 rapid assessment studies and four other surveys. This resulted in a final dataset of 252 articles of 243 studies, of which 238 (98%) reported distance vision loss categories. A total of 37 studies of the final dataset reported prevalence of mild VI and four reported near VI. Conclusion: We report a comprehensive systematic review of over 30 years of VI/blindness studies. While there has been an increase in population-based studies conducted in the 2000s compared to previous decades, there is limited information from certain regions (eg, Central Africa and Central and Eastern Europe, and the Caribbean and Latin America), and younger age groups, and minimal data regarding prevalence of near vision and mild distance VI.
KW - Blindness
KW - Global Burden of Disease study
KW - Prevalence
KW - Visual impairment
KW - World Health Organization
UR - http://www.scopus.com/inward/record.url?scp=84873033250&partnerID=8YFLogxK
U2 - 10.3109/09286586.2012.741279
DO - 10.3109/09286586.2012.741279
M3 - Article
VL - 20
SP - 33
EP - 39
JO - Ophthalmic Epidemiology
JF - Ophthalmic Epidemiology
SN - 0928-6586
IS - 1
ER -