Physiological factors cause the baby’s eyes to be slightly wide apart is normal, pathological factors cause the baby’s eyes to be slightly wide apart is not normal. The baby’s eye spacing may be family genetic, parents or grandparents, grandparents have eye spacing facial features, inherited to the baby’s eye spacing is slightly wide, the baby’s other growth and development of all normal, parents do not need to worry. A baby’s wide eyes may be caused by pathologic factors, such as Down’s syndrome, the baby will have the symptoms of wide eyes. Down syndrome babies also have mental retardation, eye upward slant, growth retardation and other abnormalities, parents need to timely education, training, so that Down syndrome babies to master certain life skills. Parents can take their babies to the hospital for checkups if they see that their babies’ eyes are slightly wide apart and are worried about their babies’ Down’s Syndrome.