If parents find that their children often crooked neck, and can not have a good improvement, it should cause a high degree of attention, this kind of crooked head vision is not necessarily abnormal neck, may be caused by strabismus, this is because of strabismus extraocular muscle paralysis, in some direction of the field of vision, the vision appears diplopia, in order to overcome the double image, the patient adopts the crooked head, the side of the face, lift up the chin, and so on the special head position to compensate for the medical known as compensatory head position. For children, compensatory head position not only affects aesthetics, abnormal head position also affects the development of bones, and long-term uncorrected can lead to deformity. The medical tilt neck caused by strabismus is called ophthalmic tilt neck, which is a compensatory change taken by the patient in order to maintain binocular parallax, because it is not clear that the tilted head tilt neck is caused by strabismus, some patients blindly performed neck surgery, which not only suffered from unnecessary pain, but also can not be cured. Therefore, once parents find that their children have tilted head, they should go to the ophthalmology department routinely to exclude ocular strabismus and detect strabismus in time for early treatment, so as not to delay the condition.