Google Glass will support prescription lenses later this year
This shouldn't really be a surprise, because Google has said before that it was working to give those who already wear glasses a way to use Google Glass. But, Google has made it official, and said that Google Glass will support prescription lenses later this year, although early adopters should keep in mind that the current Explorer Edition of Glass will not be getting a way to use prescription lenses.
Both models of Glass are expected in time for the holidays, Google says, unless there are "stock issues", which is something that has been a running trouble for Google. Although maybe the pricing and pretty niche market for Glass at first will help mitigate that.
source: +Project Glass