Babies 45 days eyes often squint, may be due to strabismus, in addition can not be ruled out due to bad habits. If the child often squints his eyes to look at things, it may be caused by strabismus, which is mainly manifested as the direction of vision of both eyes is not parallel, and when one eye is looking flatly at the front, the other eye will be skewed. However, sometimes when the child turns his head to look at something, it will reduce the degree of strabismus, so it will form a compensatory head position, and may appear to look at things with squinted eyes or tilted head. In addition, babies looking at things with squinted eyes may also be caused by bad eye habits, such as 45-day-old babies lying in the crib when the sound and light stimuli always come from the same side of the baby, which may cause the baby to develop the habit of squinting to this side to look at things. Patients with abnormal eye position are advised to seek timely hospital consultation to assess their condition and follow the doctor’s instructions for treatment.