Article: AdSpecs, the $19 miracle
AdSpecs, the glasses that use water to improve vision
Over half a billion people in the developing world need glasses, but either don’t have access to eye care or can’t afford it, as is most often the case. And even if donors put up enough money to provide eyeglasses for everyone who needs them, there simply aren’t enough trained optometrists to handle prescriptions properly. To tackle this problem, UK physicist Joshua Silver invented a pair of self-refractive eyeglasses that enable wearer to adjust the prescription themselves in 1996. It wasn’t until Silver developed a better version in 2007 that he started to get media attention and created Global Vision 2020, a realistic plan for global distribution of his AdSpecs.