Blinded pilot guided to safe landing

I saw that the other day. The pic showed a C182, and most of those have a wing leveler autopilot at least. If he had that all he had to do was twist the heading knob, set the trim and adjust the throttle and with some talking could have gotten it down. If he did it without an autopilot he did something that I, frankly, couldn't even imagine anybody doing. I would have thought he would have gotten into a "death spiral" after a few minutes unless he could see some bit of the horizon... They did say that his sight wasn't totally gone, he could make out a bit of difference between gray and white, so maybe he had enough horizon sense to keep it level. In that case he still pulled of a fantastic feat.