This is a collection of designs that we intend to use in developing a pair of customizable open-source 3-D printable self-adjustable glasses to help the literally millions of people around the world that can not afford conventional lenses and eye care professionals.

This is another good example of using open-source 3D printing for sustainable development - see http://www.academia.edu/1507915/3-D_Printing_of_Open_Source_Appropriate_Technologies_for_Self-Directed_Sustainable_Development

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