A study investigated effects of regular instruction and practice with prescription reading glasses with three adolescents with low vision. Two students demonstrated no advantage in reading large print and one student experienced a decreased reading rate using standard print and reading glasses. Students preferred reading standard print with…

This article proposes some techniques for enhancing large-character computer access systems to enable users with partial vision to operate them more easily and efficiently. These techniques involve mapping several areas of an application's screen into large characters and adapting this mapping in a context-specific way. (Author)

Low vision children (ages 4-19, n=137) were screened, and 77 percent were advised to have comprehensive clinical evaluations or ophthalmology services. The visual capability of the referred children was determined, low vision aids were prescribed for 56 children, and the degree of successful utilization of aids was evaluated. (JDD)

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)

A telephone survey of 147 participants, ages 27 to 96, in a low-vision service program of an urban vision rehabilitation agency found that most respondents continued to use their devices every day for months after low-vision services were completed, and three-fourths reported that the services had a positive impact on their everyday functioning.…

The Ebbinghaus (Titchener) illusion was examined in a remote culture (Himba) with no words for geometric shapes. The illusion was experienced less strongly by Himba compared with English participants, leading to more accurate size contrast judgments in the Himba. The study included two conditions of inducing stimuli. The illusion was weaker when…

As part of a study of 198 residents with low vision in 28 nursing homes, 91 participated in a low vision rehabilitation intervention. Among the rehabilitation participants, 78% received simple environmental modifications, such as lighting; 75% received low vision instruction; 73% benefited from staff training; and 69% received simple nonoptical…

Prolonged visual deprivation from early childhood to maturity is believed to cause permanent visual impairment. However, there have been case reports of substantial improvement of binocular vision in human adults following lifelong visual impairment or deprivation. These observations, together with recent findings of adult ocular dominance…

During the next 25 years, the number of Americans over age 65 is expected to reach 50 million. Although many will not experience age-related visual impairments until the age of 60 or 70, some will begin to experience serious problems by the age of 40. The types of vision problems experienced by individuals as they age include difficulty in…

FOUR VISION SCREENING METHODS WERE STUDIED DURING THE 1966-67 SCHOOL YEAR IN FOUR SELECTED SCHOOLS WITHIN A FOUR COUNTY AREA IN IOWA. SCREENING METHODS STUDIED WERE (1) SNELLEN CHART FOR DISTANCE VISION, (2) SNELLEN CHART FOR DISTANCE PLUS THE READING CARD-SNELLEN RATING FOR NEAR-POINT TESTING, (3) KEYSTONE VISUAL SURVEY TESTS, AND (4) T/O SCHOOL…

The purpose of this paper is to illustrate the parents' role in their child's visual guidance program, the philosophies behind the program, and the teacher's responsibility to child vision. The first chapter, on parent involvement, instructs them to provide an environment to stimulate intellectual growth and stresses the importance of the…

Discusses prevalence of visual impairments and ear infections in young children and how early childhood professionals may identify vision problems and prevent ear infections. Presents findings of a study of child care programs which provide services for mildly ill children. Identifies print, video, and organizational resources on children's…

To investigate whether screen color is an important variable in the prescription of closed circuit television (CCTV) systems, 16 adults with low vision were assessed on reading performance on white, green, and amber screens. When the screen luminance and contrast were equated for each CCTV, subjects' reading performance was unaffected by screen…

This study examined the hypothesis that the effective visual field of 5-year-old children is smaller than that of 8-year-old children and adults. In addition, an effort was made to determine whether task demands affect the size of the effective visual field and if so, whether the effects on performance are different for children and adults. A…

The capacity of the visually impaired to perform normal tasks is the basis of a new classification system proposed to supplant the current legal definition of blindness, now based on arbitrary numerical values used to measure visual acuity and angular field. A discussion of the current plight of the visually impaired focuses on the failure of the…