Prescriptions? They might as well be auto-adjusting (it will scan your eyes!) And, since our eyes are unique, consider it a form of both security (good) and privacy issues (bad).
Next up, Google brain implants, allowing for sensory enhancement, telepathy, etc. Be careful with those unwanted thoughts! Oh, and Google Adsense will finally sense (hah!) what people truly want (it's in their heads)!
Let's hope we're not yet at
Minority Report levels...
Soooooo.. These glasses are coming in a version in which we can edit maps, real time.. aren't they??? (and perscriptions since I'm nearly blind with out them??)