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Peer reviewedO'Donnell, L. M.; Smith, A. J. – Journal of Visual Impairment and Blindness, 1994
This article describes the physiological mechanisms involved in three-dimensional depth perception and presents a variety of distance and depth cues and strategies for detecting and estimating curbs and steps for individuals with impaired vision. (Author/DB)
Descriptors: Cues, Depth Perception, Partial Vision, Physiology
Active Exploration of the Environment by Young Children with Low Vision: A Review of the Literature.
Peer reviewedO'Donnell, L. M.; Livingston, R. I. – Journal of Visual Impairment and Blindness, 1991
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,…
Descriptors: Cognitive Development, Early Intervention, Interpersonal Competence, Motivation
