Global Burden of Disease, Injuries and Risk Factors Study 2010

-Preliminary Result Estimates-

Janet L. Leasher, OD, MPH, FAAOOn behalf of the GBD Vision Loss Expert Group

Regional and TemporalData Availability Plot

Bourne R, Price H, Stevens G. Global Burden of Visual Impairment and Blindness. Arch Ophthalmol. 130:5; May 2012: 645-7.

Bourne R, Price H, Stevens G. Global Burden of Visual Impairment and Blindness. Arch Ophthalmol. 130:5; May 2012: 645-7.

Data Availability Map

GBD Super Regions

Preliminary GBD Expert Group Estimates of Global Number of Persons in 2010 with

Blind and Visual Impairment:

33.5 million Blind199 million MSVI

(29.6-38.1)

(177-231)

Trends

• The prevalence of blindness and MSVI has decreased in the last 20 years, despite the relative increase in older adults in the world population

• However, due to population growth, the estimates suggest that absolute blind population has been stable and the population with MSVI has increased.

GBD Blindness Estimates Age-standardized and Total Crude Number

1990 1995 2000 2005 20100.0%

0.1%

0.2%

0.3%

0.4%

0.5%

0.6%

0.7%

0.8%

0.9%

1.0%

0

5,000,000

10,000,000

15,000,000

20,000,000

25,000,000

30,000,000

35,000,000

40,000,000

Age-stand.ardized Prev.alence

EstimatedNumber blind

Ratio of Blindness to Moderate and Severe Visual Impairment

Temporal Trends

Change in Blindness Prevalence from 1990 to 2010 by World Region

Change in Prevalence of Visual Impairment from 1990-2010

by Global Region

Country Specific Information

Males

Females

Poland

Ratio of female-to-male prevalence

Ratio of female-to-male prevalence

Summary Statistics

• Prelim. estimates 33.5 million people Blind in 2010 (29.6,38.1), 60.6% of Blind were female

• 199 million (177,231) had Moderate and Severe Visual Impairment in 2010, 56.8% female

• The highest age-standardized prevalence of blindness in those ≥ 50 years was in Western Sub-Saharan Africa at 5.8%

• The highest age-standardized prevalence of MSVI in those ≥ 50 years was in South Asia at 24.1%

Summary Trends

• The global age-standardized prevalence of blindness for adults aged 50+ years decreased from 3.1% (2.7%-3.6%) worldwide in 1990 to 2.0% (1.8%-2.3%) in 2010.

• The global age-standardized prevalence of MSVI for adults aged 50+ years decreased from 14.2% (11.2%-16.1%) worldwide in 1990 to 10.8% (9.7%-12.4%) in 2010.

Thank you all