If your pocket allows you to buy Google glass but you are not buying it just because you have a weak eyesight then your problem has been solved by Google as the company announced new shades and frames for Google glass.
Current Google glass explorer have to pay $225 to get themselves this new upgrade. but there are limited number of options available. You have to select from which are of four standard frame options which are Split, Thin, Bold, Curve or and order lenses to fit. the titanium frames are available for $225 while the sun glasses are available for $150.
By looking at the frames, don't get too excited as $1500 price tag still comes with Google Glass. But the new shades look considerably better than the simple Google Glass.