Experiments examined the accuracy of visual touchdown point perception during oblique descents (1.5?-15?) toward a ground plane consisting of (a) randomly positioned dots, (b) a runway outline, or (c) a grid. Participants judged whether the perceived touchdown point was above or below a probe that appeared at a random position following each…

Evidence suggests that visual processing is divided into the dorsal ("how") and ventral ("what") streams. We examined the normal development of these streams and their breakdown under neurological deficit by comparing performance of normally developing children and Williams syndrome individuals on two tasks: a visually guided action ("how") task,…

This study examined and compared the control of posture during bilateral stance in ten boys with Developmental Coordination Disorder (DCD) of 6-8 years old and ten matched typically developing boys in four sensory conditions (with or without vision, on a firm or complaint surface). In all conditions mean postural sway velocity was larger for the…

One in eight Americans aged 65 and older has an eye disease resulting in low vision, and more women than men are visually impaired, mainly because women live longer. Age-related visual impairments are an indicator of a decline in activities of daily living and self-help skills. The top eye conditions that affect older adults are macular…

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 resource book is designed to help in delivering materials and services to visually handicapped students. A flow chart describes a materials delivery system, and separate sections address information (such as acquisition, production, duplication, materials needed, and alternatives) for braille, large print, and tape. Other considerations…

Various eye problems and the effects they can have on children's reading abilities are explored in this pamphlet, which is one of a series designed to answer parents' questions about their children's reading development. Topics discussed are the demands on vision made by reading, problems that affect visual acuity (nearsightedness, farsightedness,…

Some cautions regarding the early educational uses of optical aids with visually impaired children are suggested, based on widely held assumptions and recent findings in the fields of perception and reading. The change from the sight conservation era to one advocating the maximum use of remaining vision is traced. (Author/SW)

An inexpensive computer graphics systems (Commodore PET), used as a video aid for teaching students advanced case analysis, is described. The course provides students with the analytical tools for evaluating with graphical and statistical techniques and treating with lenses, prisms, and orthoptics various anomalies of binocular vision. (MLW)

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)

As follow up to a study which compared forced-choice preferential looking (FPL) with pattern visual evoked potential (VEP), this study increased the VEP success rate and improved agreement between the FPL and VEP acuity estimates by using horizontal bar stimuli for young preverbal children (n=17) with nystagmus. (Author/DB)

Reports on the first New York Literacy Vision Screening, which investigated whether illiterate adults enrolled in illiteracy programs might have undetected visual problems that were interfering with their quest for literacy. Finds a startling 66 percent with vision problems. (SR)

In response to data from the initial survey published in October 2001, interventions were developed to increase vision screening knowledge and promote use of the "Iowa Vision Screening Program Guidelines" (Iowa Department of Education [IDE], 1997). The purpose of this evaluation was to measure differences in practice after interventions,…

Prism adaptation, in which the participant adapts to prismatic glasses that deflect vision laterally, is a specific test of cerebellar function. Fourteen dyslexic children (mean age 13.5 years); 14 children with developmental coordination disorder (DCD): 6 of whom had comorbid dyslexia; and 12 control children matched for age and IQ underwent…