The first stage: 4 months before more black and white As the baby was born the first to see the mother’s breast, so the bullseye image is more sensitive. So for babies born 4 months, parents are advised to take some black and white toys similar to the bullseye and shake them back and forth in front of the baby’s eyes to enhance their sensitivity to black and white hues. Of course, in order to pave the way for the child’s future visual development, parents can also buy some red, yellow and blue toys to show them from time to time. Because although the baby can not see these colors at first, but for a long time. But can play a role in stimulating vision, for the baby into the visual color period to lay the foundation. In addition, the clothes worn by the baby, should also be a little more colorful, gray and dark shades, bright shades of clothing should have, otherwise it is likely to look at the same color for a long time, resulting in visual retardation. The edge of the baby’s bed and the head of the bed, the same should be decorated with some colorful ornaments, such as balloons, hanging ornaments, colorful ceramic plates, so that the baby as soon as he opens his eyes, there will be a colorful environment of inculcation. “But remember not to let your baby stare at one thing for a long time, or it may cause them to stare blankly or even form a cock-eye. Shaking the toy while talking gently to your child will be more effective. Stage 2: half a year after contact with orange, green and purple 4 to 12 months, the baby will usher in the color of vision period, this period, the baby’s optic nerve is very sensitive to colorful things, the visual range is also expanded to 1-2 meters. Although this time the child is sensitive to color, but with what kind of color, the effect will be better is also different, the three primary colors red, yellow, blue, high purity, easy to identify, belongs to the preferred color; in addition, parents can also try to let the baby in advance to contact with some of the orange, green, purple. For example, buy some colorful toys with bells, shaking in front of the baby’s eyes, so that the sound and color, the child will feel excited to see, on the visual and brain development to play a good role in stimulating. Parents can also take the toy and the child to play “hide and seek”. While shaking the colorful toys in front of the baby, while hiding the toys behind. When the baby is confused, the toy is suddenly revealed in front of the child’s eyes. “When the toy is instantly in front of the baby’s eyes, he becomes instantly happy.” And this process is excellent for visual stimulation.