Inventor's 2020 vision: to help 1bn of the world's poorest see better | Society | The Guardian

Inventor's 2020 vision: to help 1bn of the world's poorest see better | Society | The Guardian:

"What if it were possible, he thought, to make a pair of glasses which, instead of requiring an optician, could be 'tuned' by the wearer to correct his or her own vision? Might it be possible to bring affordable spectacles to millions who would never otherwise have them?

More than two decades after posing that question, Silver now feels he has the answer. The British inventor has embarked on a quest that is breathtakingly ambitious, but which he insists is achievable - to offer glasses to a billion of the world's poorest people by 2020."