Imagine windshield wipers attached to the top of both of your eyeballs. When I look right, they swipe left, in unison. When I look right, they swipe left in unison. When I look up, the
lines move down in unison and when I look down, they move up. The right eye started about six months before the left eye and this has continued for over a year. The lines are not defined, but more like a blurry see through line. When my eyes are still, I do not see them.