新生儿出生后已具有听觉和视觉功能,满月以后由于中耳里面的羊水被吸收以及眼肌的调节功能逐步完善,孩子便渐渐地耳聪目明起来。婴儿床的位置放得不恰当,孩子头部两边的光线明暗相差较大,或者某一侧经常发出响声(如关门声),那么他往往会把头部转向较亮或经常发出响声的一边,久而久之便会造成一些不良后果。 After birth, the newborn has hearing and visual functions. After the full moon, the amniotic fluid in the middle ear is absorbed and the regulation function of the eye muscle is gradually improved, and the child gradually learns. The placement of the crib is not appropriate, the children’s head on both sides of the light intensity difference between the larger, or often a side of the sound (such as the sound of the door), then he often will head to the brighter or often make a loud side, Over time will cause some adverse consequences.