Duckling can't see

I have a new baby Rouen who hatched Monday night/Tuesday morning. It was an assisted hatch as the poor baby was getting shrink wrapped and wetting the membrane didn't help. My little Rouen is having problems opening it's eyes and walking. One eye (which is on the side that I had the most problems with membrane sticking to) is completely gunked over and won't even open. When I open it the eye is milky white. The other eye is a tad crusty and slightly white when opened, but not nearly as bad. After cleaning it with water on a q-tip it opens for a bit, but gets the gunk on it again very soon to the point that cleaning the eye isn't working because 5 minutes later it's closed up again. The poor baby can't walk that well, and I fear it's because he can't see anything. He's trying! He more so scoots his butt around to move. I have to feed him and give him water because he can't see to know where it is in his box, let alone walk well enough to get there. Any suggestions on what to do? I'd hate to lose him.