A new test designed to detect an hereditary eye disease called retinitis pigmentosa (RP) is described. This condition is revealed by pigmentation in the retina, but early diagnosis is difficult because the symptoms are subtle, and since it is genetically recessive it frequently occurs in families with no history of early blindness. In many cases…

Based on studies and clinical findings, two techniques for testing infant vision are described: near-retinoscopy (used to assess the refractive state of infants and young children) and a fast preferential looking procedure (used to assess the acuity of infants up to one year of age). (DLS)

The booklet provides an overview on vision therapy to aid writers, editors, and broadcasters help parents, teachers, older adults, and all consumers learn more about vision therapy. Following a description of vision therapy or vision training, information is provided on how and why vision therapy works. Additional sections address providers of…

This paper reports an investigation of the effectiveness of vision screening by the Modified Telebinocular Technique (MTT) when compared to the more cumbersome but highly valid and reliable Modified Clinical Technique (MCT). Data on 102 school children were collected using the MCT. The same children were then given the MTT to establish comparison…

Presented is an abstract of a lecture-workshop presentation on vision problems and their relation to learning, working, living, and health. Areas covered by the author in his lecture are outlined as including the essential tests of the primary vision examination; the value of testing depth perception at the reading distance; the testing and care…

Describes an experiment revealing a visual latency effect produced by the wearing of sunglasses. (SL)

The brain-injured group performed with greater error scores and required more time to complete the tasks; although the brain-injured group took more time on the binocular tasks, their performance scores were similar to the nonbrain-injured group scores. (Author)

Tested the validity of the Mandola Colorvision Screening Test, a color confusion test involving geometric designs and a tracing technique, as a screening test for color vision defects in 82 preschool and kindergarten children. Results indicated that MCST separates medium to strong color vision defects from the normal population. (JAC)

Visual persistence was investigated in adults with and without dyslexia in order to determine whether dyslexic adults demonstrate problems similar to those found in childhood dyslexia. Results showed that sensitivity of dyslexic adults was impaired when parts of a test stimulus were presented to adjacent retinal areas, suggesting that under…

The assessment of vision as it relates to and interacts with motor development is reviewed. The focus is on eye readiness skills normally occuring in infants' first few months of life and preceding eye-hand coordination. These visual skills fall into three categories: fixation, tracking, and scanning. Six standardized scales are reviewed and…

This study investigated the possibility of a functional relation between the auditory and visual systems in the human newborn beyond reflexive organization. Visual activity was monitored in 16 newborns through the use of infrared corneal reflection video tape recording. Infants were observed in total darkness and while monocularly viewing a…

Argues for total eye testing rather than an annual test of distance visual acuity and questions the use of the Snellen test. (TO)