Baby sleep half open eyes, physiological factors, pathological factors can be caused. 1. Physiological factors: if the child has just fallen asleep, the eyes are half-open with only the whites of the eyes showing, waiting for the eyes to close completely after sleep, this is not a pathological condition, parents do not need to worry. 2. Pathological factors: However, if the baby has had trauma surgery on the eye, then you should consider whether the baby’s eye muscles or eyelids are damaged. If it is congenital to sleep with eyes open, should also pay attention to timely medical treatment, to prevent prolonged opening of the eyes, resulting in baby cornea, conjunctiva dry inflammation. On weekdays, should try to ensure that the baby rest, play environment clean and hygienic, to avoid bacteria and tiny foreign objects into the baby’s eyes, let the baby to develop a good habit of washing their hands, so as to avoid the baby to rub their eyes with their hands, resulting in redness, swelling and discomfort in the eyes.