Published in 2011.
- Globally the number of people of all ages visually impaired is estimated to be 285 million, of whom 39 million are blind.
- People 50 years and older are 82% of all blind.
- The major causes of visual impairment are uncorrected refractive errors (43%) and cataract (33%); the first cause of blindness is cataract (51%).
- Visual impairment in 2010 is a major global health issue: the preventable causes are as high as 80% of the total global burden.
Click on the link to access the full article: http://www.who.int/blindness/GLOBALDATAFINALforweb.pdf?ua=1