Posted on other glass thread:

I think it looks better with glasses: https://encrypted-tbn1.gstatic.com/images?q=tbn:ANd9GcSQr6-v...

Here is sunglasses on Brin from opposite profile: https://encrypted-tbn3.gstatic.com/images?q=tbn:ANd9GcTvbW54...

Hmm - from the demo pictures it looks like you can snap on a lense behind the display. They use a sunglass lense in their example, but I don't see why it couldn't also be a corrective lense.

I believe the unit and frame are separate. As mentioned there are a few examples of the units being on standard glasses with lenses.