I understand what you're saying but I was talking about something close to or better than human vision. I'd argue that bionic eyes are further along because they're sending a simplified signal. As they ramp up they're going to run into the mapping issues. There's a ton of different procedures and repairs to incentivize improvements in neuron grafting, organ rejection and neurogenesis where the bionic eye challenges seems like it will pull in less R&D money. I might be wrong though, brain implants are getting popular in the startup funding cycle so that might drive crossover breakthroughs.

I'm personally rooting for bionic eyes. I'd like to be able to see like a mantis shrimp in my 70s.