So, how much volume does a typical eye have, 1 cubic inch or so? Seems like you could shoe-horn a CCD, battery and UWB transmitter into that (just available UWB chips put out less than 1 milliwatt for a 10 meter range, so obviously you'll crank that down to about 24-30 inches). That way, no wires. Still, the signal processor is still one to two chip generations away from being implantable, at least. To say nothing of power concerns.

But damn if this isn't cool.