These are part of a research project by MOST (Michigan Tech Open Sustainability Technology Lab) aimed at creating a customizeable pair of glasses that can utilize self-correcting lenses. These lenses allow the user to dial in the correction just by moving a syringe to inject more, or remove the liquid inside the lens. By 3D printing the components the cost of the glasses is reduced significantly and the glasses are able to be customized for the wearer's preferences.
More info on MOST can be found here: http://www.appropedia.org/Category:MOST
Note: I need to fix the supports for the hinges. Will get on that soon.