Comparison of 2 totally blind, 2 visually impaired, and 9 normally sighted children (ages 5-8) on tasks of visual perspective taking found that the totally blind children were older than the other children when they mastered the tasks, made the highest percentage of errors before mastery, and made different errors. (Author/DB)

A study involving 23 blind students (6-12 years old) revealed that age at onset of blindness did not appear to be critical in mastery of space concepts. One-third of the Ss exhibited atypical spatial development, g mastering relative positions of left and right before mirror-image orientation. (Author/CL)

The investigation's purpose was to revise E. Hill's test for assessing the development of spatial concepts among visually impaired children, "Concepts Involved in Body Position and Space;" establish the test's validity and reliability; and collect normative data. (Author)

Young children with low vision tend to experience delays in cognitive development, motor development, and social skills because of insufficient motivation and opportunities to explore their environments actively. This literature review explores the resulting difficulties in acquiring practical knowledge and spatial/environmental concepts,…