The paper reviews the effects of absence of vision on perceptual functioning and considers ways in which a modified Optacon (which translates images into tactile presentations) can help visually impaired persons acquire critical cognitive and perceptual knowledge. Background research with the Tactile Vision Substitution System, a system for…

The development of visual perception skills in children with partial vision as well as developmental disabilities is considered. A model of visual learning is offered which incorporates the role of visual experience, movement, and visual learning. Specific teaching suggestions for developing visual attention and visual search skills are offered.…