I'm not sure how to describe this, but I woke in the middle of the night and when I focused on something in the room my eyesight wandered away and each time I tried to look at a particular object my eyesight drifted to the right. I could still see the object in the distance but it was like my eye line wanted to come away from it. I closed my eyes for a few moments and then it was fine. I wasn't dizzy or lightheaded and could walk to the bathroom with no problems. Has anyone experienced this and does anyone know what it is?