Visual Impairments (VIs) are ranked as the fourth most common disability in the United States and are viewed as the most common restricting condition during childhood. It has been reported that 17% to 25% of school-aged children have some degree of a vision problem, thus interrupting their potential to reach optimal growth and learning in school.…

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)

Identifies some functional vision problems and describes some assessment procedures for determining whether a child needs professional help. (MKM)

Relationships between infant visual skills and the development of object permanence and expressive language skills were examined with 31 infants in three groups: visually typical, visually atypical, and Down Syndrome. Measures used to evaluate visual status were: forced preferential looking, optokinetic nystagmus, and behavioral. Object permanence…

Three experiments examined the ability of blind individuals and individuals simulating the visual acuity of 20/400 to monitor the behaviors of a cane traveler in various environments and at distances between 10 feet and 25 feet. Results suggested that at least some vision is needed for instructors monitoring visually impaired individuals learning…

A series of classroom experiences designed to experiment with the visual sense is described. Information is presented on materials and directions for activities exploring such aspects as stereo vision and dissection of animal eyes. (CL)

These Colorado guidelines explain the purpose of vision screening programs in schools and draw a distinction between screening and a screening program. They outline types of screening to be carried out for students at each grade level. Screening procedures are then described in detail, including: history and external observations, distance visual…

The interview with G. N. Getman, a developmental optometrist specializing in learning problems and disabilities, focuses on vision's impact on learning, the role of the vision specialist in the remediation of learning problems and disabilities, early screening programs, and visual training programs. (DLS)

The paper stresses the significant role of vision in the general developmental and educational process for hearing impaired students with and without visual impairments. (Author)

This study evaluated two methods of presenting a videotaped lesson on the care of residents with low vision to 87 staff at long-term care facilities. Both versions of the videotape, one which presented information in a narrative format and one which used text overlay to highlight ideas, were equally effective. (Author/JDD)

The author discusses applying J. Piaget's philosophy to the treatment of learning-related visual problems by first probing for the available knowledge in the person's ocular sensorimotor intelligence, visual thinking, and logical reasons. Then, through tasks, the individual is encouraged to engage in high-level thinking in the undeveloped areas.…

This review of the literature examines the effects of blue light (or near UV - ultraviolet), especially that given off by black-light tubes, often used with children with visual impairments. It finds a long-term danger of retinal and lens damage and offers six practical suggestions which emphasize using proper filters and limiting exposure to…

The role of visual imagery is explored as an information processing strategy, and its relationship is counterpointed to the linguistic system. The importance of visual imagery as a diagnostic and therapeutic tool to aid both visual and nonvisual performance and learning problems is discussed. (Author)

Teachers need to watch for hidden visual problems which may affect their students' learning. The article discusses vision and learning, visual efficiency problems, and treatment; it describes conditions and symptoms of visual processing and efficiency disorders. (SM)