British inventor Josh Silver has invented adjustable prescription eyeglasses which allow the wearer perfect vision without the need for an optometrist. This is a crucial factor in the developing world where trained specialists are desperately in demand: in Britain there is one optometrist for every 4,500 people, in sub-Saharan Africa the ratio is 1:1,000,000. Mr. Silver has now embarked on a quest to distribute his glasses to 1 billion of the world’s poorest people by 2020.
Source: Guardian.co.uk
Source: Guardian.co.uk
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