This study explores the reason why very young infants are unable to respond differentially to faces and the cause for developmental changes in infant face perception by age 3 months. Linear systems analysis (LSA) and the contrast sensitivity function (CSF) were used to estimate the facial pattern information available to 1- and 3-month-old…

This annotated bibliography contains both opinion and research articles dealing with various aspects of vision. The entries are divided into four categories: visual acuity, visual perception, perceptual motor development, and eye movements. Within each category are entries presenting controversial and contradictory viewpoints and evidence enabling…

Discussed is the nature of a central scotoma, or decreased central vision, and described are current techniques for training an individual to use the peripheral retina. (Author/IM)

Looks at vision problems in the areas of visual acuity, visual skills efficiency, and visual perceptual-motor development, and points out symptoms of each that children might exhibit. Suggests things teachers might do to help. (FL)

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

Clarifies the purpose of the "Home Eye Test for Preschoolers" and defends use of the Snellen chart. (TO)

Discusses several characteristics which may be particularly critical when learners work with computer based instruction: prior knowledge or familiarity with content to be learned, level of anxiety, visual and verbal abilities, and degree of motivation. (Author/JD)

Discusses the nature of color vision defects as they relate to reading instruction. Suggests ways that teachers can adapt instruction to help provide maximal learning opportunities for the color deficient child. (RS)

This article addresses issues of orientation and mobility for students with visual impairments, including the perception of motion, visual mechanisms of binocular coordination, perception of impending collision, and body movement to avoid collision. Emphasis is on the role of binocular coordination ability and acuity. These concepts were evaluated…

Techniques used by the Special Visual Assessment Clinic for the Handicapped at the University of California-Berkeley School of Optometry are designed to serve handicapped children and adults generally considered "difficult to assess." This article describes the clinic's assessment goals, clientele, and methods for assessing visual ability and…

The Perky effect, identified in 1910, is the reduction in performance from the no-imagery to the imagery condition. A series of experiments with over 100 undergraduates and graduates shows that the reduction reflects a true reduction in visual sensitivity, not just alteration in criteria for responding or response organization. (SLD)

This study of the effects of lenses of different colors on the visual abilities and comfort of 20 patients with retinal disease found that, in home trials, the critical issue was density more than color. Office tests of visual acuity and contrast sensitivity with colored lenses did not predict subjective benefit. (Author/JDD)

The Dutch painter Rembrandt (1606-1669) left behind the largest series of self-portraits in the history of art. These paintings were produced over a period of time from age 22 years until just a few months before Rembrandt's death at age 63. This series gives us a unique opportunity to explore the development, maturity, and aging of the artist.…