We had a rotti once that had itchy eyes, he would lose all the fur/hair around his eyes as well. One of the vets suggested that his eye lashes turned in and should be plucked out, they were going to knock him out for it because they thought he would bite them. He let me do it. It didn't help. I think it was just the season (spring was always worse).
Keep us posted if you work out whats going on.