One of the biggest questions that the world has asked about Glass is if it will be available for people that wear prescription glasses. Glass has commented several times about this issue but they just released an official statement. Google is working on a way to make it possible for those wearing prescription glasses but it will not be available with the Explorer Glass, it will be available for the consumer version though.
One of the questions we hear the most is whether there will be a prescription solution for Glass. The short answer is: yes!
The Glass design is modular, so you will be able to add frames and lenses that match your prescription. We understand how important this is and we’ve been working hard on it. Here’s a picture of +Greg Priest-Dorman, a member of the Glass team and an early pioneer in wearable computing, wearing one of the prototypes we’re testing.
We’re still perfecting the design for prescription frames. Although the frames won’t be ready for the Explorer Edition’s release, hang in there — you can expect to see them later this year.
Source | Project Glass G+