Any functionality the contact lenses would have would be minimal, not to mention they'd have extremely short battery life and as I said in my original comment I

Any functionality the contact lenses would have would be minimal, not to mention they'd have extremely short battery life and as I said in my original comment I don't think wirelessly transmitting to and from your eye is going to be good for eye health, RF in sufficient strength can very quickly cause cataracts so even some low power transmission, a fraction of a mm off the surface of the eye, is probably going to be bad bad bad in the long run.