I have this problem now for a week. I can't focus my eye, when I try to focus on thinks it feels like I'm crossing my eyes or just day dreaming. Is very hard to concentrate on things and almost impossible to drive a car. I went to check my eyes and the doctor said I have 20/20 vision. Please, is been a week now and the eyes are getting more tired and dry. Not sure if it from trying to focus all the time. I had CT scan done and it was all clear. I'm waiting to see my family doctor and hope she sent me for MRI.