Children who have farsightedness, astigmatism (where the cornea is irregularly shaped and causes blurred vision), or a lazy eye (also known as amblyopia, in which one eye develops poor vision) may tilt or turn their head to see better to compensate for eye misalignments, double vision, and eye muscle imbalance.
"Watch for signs of extreme farsightedness, which may cause one or both eyes to cross inwards," says Dr. Weakley. "An eye that turns in or out may be an indication your child needs glasses, but it might also suggest a more serious problem [like thyroid eye disease and Duane syndrome] and should be evaluated as soon as possible so talk to your pediatrician."