If you can find a way to stop me going blind I'm all for it.
Bionic eyes? Sure! do I get to pick the color?
Pick the color?
You could pick the colors you see.
What really bothers me is camera-eyes. How do you know that somebody's not recording any given moment? Even if you put an easily-visible indicator on such a bionic eye, there will probably be somebody with the ability to disable it. And of course the NSA would just love more ways to record people's goings-on.
Google glass will already do that. As do soooo many other products.
And it's not like you can really just turn them off either.So yeah, already happens, already happening; don't need cybernetic eyes to do so.
PTW
Ethics issues might also include things like "what happens if you could make a weapon bioimplant for humans?"
Is this that really different from 'what if you could make a gun' or 'what if you implanted a bomb in your trunk'?
I'm guessing weapon bioimplants would be out of reach of the average person though, due to biocompatible materials not being widely available yet. So, not that different, but reasonably similar.
Even in THE FUTURE, I suspect the interaction would go as follows:
Patient: DOCTOR! Put a gun in my arm!
Doctor: Uh... yeah.... sure.... Just go down the hall and wait in that room with the padding on the walls while I fill out the paperwork.
Patient: Okay!
Doctor to staff: Right then; go call the psych ward, we've got another loony for them.