You shall check out how your child got squint eyes. Squint eyes can be related to a refractive error, when the child has a refractive error such as short sight, long sight or astigmatism, he tries to focus to see clearly so that one of his eyes turns. In some cases, squint eyes indicates a generalized genetic or brain condition. For example, when a child suffers cerebral palsy, hydrocephalus, brain injury or tumor, Noonan's or Down's syndrome, squint eyes develop. I suggest you take him to consult an eye doctor as early as possible. In daily life, you should supervise him to restrict the use of the good eye and to force the affected eye to work. If the squint eyes are caused by refractive error, prescribed glasses will be essential. In addition, surgery is often needed to correct the appearance of the squint eyes. Wish your child recover soon.