Clinically, cock-eye is called internal strabismus. The internal strabismus of a three-month-old baby’s eyes may be caused by pseudo strabismus, farsightedness, etc., which can be relieved by treatment through corrective training, spectacles and surgical treatment. 1. Pseudo strabismus: It may be due to the baby’s nose is not long open, the inner canthus caused by pseudo internal strabismus. Generally with the growth of age, it will disappear by itself. You can increase your baby’s field of vision by changing the sleeping direction and walking outdoors, so that your baby’s eyeballs will not only turn to one side, which can effectively alleviate the condition of strabismus. 2. Farsightedness: If a three-month-old baby has farsightedness, when he or she gazes at a fine target, his or her eyes may be highly adjusted, and the high degree of adjustment may cause the eyes to over-concentrate, which may lead to the occurrence of internal strabismus. Farsightedness can be corrected by wearing glasses in time. If the baby’s strabismus is more serious, surgical treatment can be used to correct it. If your 3-month-old baby has strabismus, parents should take your baby to a regular hospital for an examination to find out the cause of the problem, and then follow the doctor’s instructions for targeted treatment.