The bionic eye (well contact lens)

Imagine this, off in the distance something barely visible.  Hit 'zoom' and it enlarges the image so that you can see it clearly.  Great new digital thing? sure but it is built into a contact lens.  Scientists at the University of Washington are looking at ways to integrate new features into contact lenses but building in micro-sized circuits.  These circuits could help process images and maybe even give you a 'heads up' display of what is going on with your body.  Some of this might sound creepy but the concept is cool.  The biggest challenge with most of these devices is the power and then also how to make sure it is compatible with your eyes.  Long way to go but they have started looking at how they might make these devices biocompatible.