Trends in prevalence of blindness and distance and near vision impairment over 30 years: an analysis for the Global Burden of Disease Study.

Abstract:

BACKGROUND:To contribute to the WHO initiative, VISION 2020: The Right to Sight, an assessment of global vision impairment in 2020 and temporal change is needed. We aimed to extensively update estimates of global vision loss burden, presenting estimates for 2020, temporal change over three decades between 1990-2020, and forecasts for 2050. METHODS:We did a systematic review and meta-analysis of population-based surveys of eye disease from January, 1980, to October, 2018. Only studies with samples representative of the population and with clearly defined visual acuity testing protocols were included. We fitted hierarchical models to estimate 2020 prevalence (with 95% uncertainty intervals [UIs]) of mild vision impairment (presenting visual acuity ≥6/18 and <6/12), moderate and severe vision impairment (<6/18 to 3/60), and blindness (<3/60 or less than 10° visual field around central fixation); and vision impairment from uncorrected presbyopia (presenting near vision

journal_name

Lancet Glob Health

authors

GBD 2019 Blindness and Vision Impairment Collaborators.,Vision Loss Expert Group of the Global Burden of Disease Study.

doi

10.1016/S2214-109X(20)30425-3

subject

Has Abstract

pub_date

2021-02-01 00:00:00

pages

e130-e143

issue

2

issn

2214-109X

pii

S2214-109X(20)30425-3

journal_volume

9

pub_type

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