The Google Glass prescription lenses photos indicate that wearer’s frames will probably need to be fashioned specifically for the device. However, these images likely show a device still in its prototype stages. The lenses appear to have one side attaching to the main unit, meaning prescription glasses will need to be made explicitly for Glass. When might Glass fans lacking 20/20 vision be able to get their hands on a pair of prescription lenses? More information at digital times and Phandroid .