You just beat my post by a few secondsActually, the eyes are looking better even though the wounds and fins are much worse. You have given him a chance.
While I don't know the circumstances and maybe there are extenuating ones here, I am not quite sure how an individual lets this get this far with a specimen like this - for heavens sake put it in the sump or go out and buy even a 10 dollar hospital tank.
Anyway, I hope you are successful.