Haven't kept up with thread due to life issues here. Reading all of your updates brings joy to me for the little guy. As River Rat said ; He's a tough bugger and there's a reason he's doing well with help from the big guy above.
I really hope the vision returns better than expected and just reading your updates he seems to be one who will stand on his own and prove to be one heck of a fine person with all the family support he's getting.

Just know that all of us here at the ant farm hope & pray for you ; him and family .