Vision
The majority of children who are visually impaired have some usable vision. Vision is the sense through which children potentially learn the most about their world. It is used for both gathering information nearby (what can be touched) and at a distance (beyond arm's reach). For young children whose vision is developing typically, 80 to 90 percent of what they learn about the world comes to them through vision. Therefore, if your child's vision is impaired or absent, in all likelihood learning is going to be affected in some way. For this reason, it is important for children with impaired vision to learn to make effective use of all their senses.