My 7 year old daughter woke up saying things were blurry. Had her use warm washcloth in case any overnight goo was causing the blurriness. She seemed to be able to see OK up close, said things were a little blurry far away. She has complained of this a couple of times and then the blurriness goes away. I am going to make a doctor s appointment today but wondered if this is common (the on/off blurriness) or if this could be a sign of needing to have corrective lenses.