I recently visited the Cooper Hewitt to see the Why Design Now Exhibition. It was fabulous! Among the highlights, for me, were the Adspecs. These glasses were developed to be a low cost eye wear option used mostly in the developing world. The glasses utilize simple technology that allows the user to "fill" their own prescription by injecting the lens with liquid. Read more about them here http://exhibitions.cooperhewitt.org/Why-Design-Now/project/adspecs and see the exhibit at the Cooper Hewitt now through January.