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.…

Describes a recently developed vision screening technique that can be used by school personnel. Reports on a study that found the technique to be effective and efficient for use in vision screening programs. (FL)

The examination of a child for strabismus (misalignment of the eyes) and treatment if the condition is present are described. General considerations when evaluating need of surgery are presented. Steps in the ophthalmologic examination are discussed, including such tests as extraocular muscle function and traction testing and studies of eye…

The article reports on a Michigan program for the screening of preschool children for visual defects. The development of the modified Snellen E for testing young children is described; other test procedures are outlined. Charts illustrate the growth of the program over a 12-year period. (PHR)

The study investigated the relationship between specific functional color deficits and performance of 32 visually impaired children either with or without blue/purple color deficits. Results of using two types of educational materials, either dittoed or photocopied, demonstrated increased errors by the children with color deficits in the dittoed…

The role of occlusion configurations in binocular vision was studied in 4 experiments with 10 adult observers. Results reveal that occlusion relationships are sensed during the earliest stages of binocular processing. A simple theoretical framework that unifies fusion, stereopsis, and occlusion is advanced. (SLD)

Assessed intrapersonal distress and impact of diabetes and vision impairment on marital functioning. Found significant degrees of intrapersonal distress and compromised family functioning. Of 18 subjects in committed relationship at onset of vision impairment, 9 later separated. Totally blind subjects were at greater risk for separation than were…

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…

This study compared effects of four visual conditions of stimuli and light on the visual performance of 30 children with low vision (divided into high, and low, visual-acuity groups). Orange stimuli viewed under black light resulted in the best overall performance, benefitted the low-acuity group more than the high-acuity group, and was the…

Discusses the role of theoretical knowledge in seeing and makes the case that direct and indirect forms of cognitive perception are pervasive forms of seeing in educational practice, and that both forms are fundamentally theory laden. Suggests that theoretical knowledge enhances our capacity to see in practice. (SLD)

Purpose: This study examined the relation of dual and single sensory impairments, within the context of cognitive function, by using the framework of everyday competence in terms of the probability of difficulty with specific personal and instrumental activities of daily living (ADLs and IADLs, respectively). Design and Methods: The Longitudinal…

This study examined the role of visual imagery in the centripetal execution principle (CEP), a graphic rule that is related to the drawing of complex figures that are composed of embedded geometric shapes. Sighted blindfolded children and children with early-onset low vision and early-onset blindness copied raised-line drawings (using only the…

This essay considers the ways that iconoclasm, or the will to control images and vision, appears in canonical and contemporary public sphere theory. John Dewey and Jurgen Habermas enact a paradoxical relation to visuality by repudiating a mass culture of images while preferring "good" images and vision. Yet even when advocating for good vision,…

The paper deals with the possibility of enriching the curriculum in mathematics, informatics and art by means of visual modeling of abstract paintings. The authors share their belief that in building a computer model of a construct, one gains deeper insight into the construct, and is motivated to elaborate one's knowledge in mathematics and…

The purpose of the study was to determine the outcomes of a low vision service that made use of an extended period of education when assisting clients with age-related macular degeneration to use low vision devices. Extended teaching time made a significant difference to the experimental group, not only in the ability to read, but in their overall…