I have a relative that went blind due to double corneal tear. Every time one of these articles comes up, they forward me the link and ask whether that's somethi

I have a relative that went blind due to double corneal tear. Every time one of these articles comes up, they forward me the link and ask whether that's something they could use. Of course, I always have to be the one giving the bad news. I rarely see any of those articles materialize in a way where I could say "yes, this is something I can get right now". The only one I remember actually making it is the Argus II, and even then there is no way I could afford the $150K price.