Short-sightedness usually develops in childhood, and occurs when the eye grows excessively long. This results in blurred distant vision.(Photo/Jon-Hyams/Orbis/Flickr).

An ‘Epidemic Of Eyeglasses’ Is Coming Your Way: Here’s Why Africa Needs To Pay Attention

By 2050, myopia in Africa will increase five to sevenfold from prevalence rates estimated in 2000. In the next 35 years, most African countries will have over 25% of the population needing corrective glasses.