Helping the world's poorest see better

A Zulu man wearing adaptive glasses. Photograph: Michael Lewis

Inventor's 2020 vision: to help 1bn of the world's poorest see better
Professor pioneers DIY adjustable glasses that do not need an optician

http://www.guardian.co.uk/society/2008/dec/22/diy-adjustable-glasses-josh-silver

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Genial. Para mim, está no mesmo nível (ou acima) de outras invenções baratas, acessíveis e transformadoras como o Q Drum e o "pot-in-pot" cooler.