A newborn baby can see things, but the baby’s vision is blurred and can perceive things at a distance of about 15 to 20 cm, but not clearly. Newborns within one month of age prefer to gaze at objects with complex shapes and contrasting colors, and their vision is 1/30th that of adults. When the child is one month old, he or she can basically see one to two meters away, and can also have a better perception and awareness of moving objects. As the child continues to develop at the age of one month, eye tracking of objects will gradually appear and the range seen will gradually expand. Visual exercise: the child’s parents can put a lot of toys, ringing bells, colorful balloons, wear some bright clothing and accessories, etc., are to some extent a good guide and exercise for the child’s vision. As the child can raise his head, the child can begin to turn his head left and right, the perception of the surrounding and see a greater range of objects. Not suitable to use flash to baby photos: baby eye retina visual cell function is also in an unstable state, the pupil is not sensitive to light reflexes, tear glands have not yet developed, dry cornea, lack of a series of blocking bright light and protection of the retina, strong electronic flash on the visual cells will produce impact damage, affecting the baby’s visual ability. For babies within 6 months, to avoid using electronic flash photography, the best use of natural light sources, or the use of side light, backlighting, do not use electronic flash and other bright light directly on the baby’s face.