If your 4.5 month old baby has an inward slanting eye, we suggest that you consult a doctor for an examination to determine whether it is a true strabismus, and then under the guidance of the doctor, you can take rehabilitation training and surgery to correct it. If your four and a half month old baby’s eyes appear to be inwardly slanted, due to the infant’s relatively young age, visual fixation has not yet occurred, you can insist on doing rehabilitation training under the guidance of your doctor, such as moving objects or covering the eyes to gradually recover, and during the rehabilitation training period, you can let your professional doctor closely check the state of recovery. If the rehabilitation training does not improve or the diagnosis of the baby’s internal oblique is more serious, if necessary, surgery can be used to treat, so that the eyeball back to normal. When a four and a half month old baby’s eyes appear to be inwardly slanted, it is recommended that parents take their baby to the hospital ophthalmology department in time for examination and treatment according to the baby’s own condition.