Baby Ge was 2 months old. We stimulated him by using a high contrast cards consist of black and white images and red patterns.
"High-contrasting, black and white images with sharp outlines are much easier for baby to see in the first few months of life while eyesight is still developing. At birth a baby’s retina is not fully developed; a newborn retina can only detect EXTREME contrasts between light and dark, or black and white. With everything appearing a little out-of-focus it’s no surprise that your baby will be completely absorbed when a book of black and white images is put in front of them."

















