A fe key statistics to share from a 2010 WHO report

Information from surveys done between 2001 and 2008 of over 50 years old:

In Africa,

5,888,000 -15% of global population who are blind
20,407,000 -8.3% of global population who are low vision
26,295,000 – 9.2% of global population who are visually impaired
(less than China and India)

In World,

285 million Visually impaired
39 million blind
246 million low vision
Most are older than 50

Cataracts are main cause of blindness and visual impairments (though VI also caused substantially by uncorrected refractive errors).

Provoking Facts

80-87 percent of individuals who are blind are in developing countries.

80-85 percent of blindness is preventable, though the number of blind caused by infections diseases is decreasing.  In the developing world, cataracts are the largest cause amongst adults and hygiene of pregnant mother is the largest cause amongst newborn babies

90-95 percent do not attend school and never become educated

There are 1 million children and youth worldwide who are deafblind.
There are 6 million children worldwide who are blind or visually impaired.
These statistics are from a variety of sources including WHO.