This petition is about two of the traditional three R's - reading, writing, and arithmetic; it concerns learning letter formation and learning to read, both of which require continuous interplay between the different perceptual attunements of central and paracentral areas of the retina. This interplay, managing the field of view between zooming-in…

Some visual processing deficits in developmental dyslexia have been attributed to abnormalities in the subcortical M stream and/or the cortical dorsal stream of the visual pathways. The nature of the relationship between these visual deficits and reading is unknown. The purpose of the present article was to characterize reading-related perceptual…

A study was conducted to determine if there were significant differences in vision between beginning readers who learn to read easily and those who learn with difficulty (dyslexics). In addition, the study examined the mean of the high achievers (rather than expert opinion) to discover the degree to which visual efficiency was normally needed for…

Using published research data, the problem of the seriously retarded reader was examined to determine the role of vision. The most obvious visual factors such as acuity and refractive error did not seem related to the problem. Impairment of visual skills such as fusion and accommodation did seem to contribute to reading difficulty, but such…

The study compared the effectiveness of Irlen filters and traditional optometric intervention with 30 volunteers (ages 9-51). Pre- and posttesting revealed that subjects in both treatment groups were more comfortable after treatment, that only the vision therapy group showed improved visual functioning, and that the Irlen filter group did not show…

The results fail to support the hypothesis that intersensory integration is the sole or even the primary developmental skill accounting for matching task improvement with increasing age. The hypothesis that retarded readers fail to develop skills in intersensory integration is also not supported. (Authors)

A study investigated whether the reading difficulties of 60 Dutch children with low vision were a matter of reduced visual input or a consequence of a lack of orthographic knowledge. Results indicated that reduced visual input was the only cause of the children's lower reading performance. (Contains references.) (Author/CR)

Research during the past decade lends support to the notion that visual as well as phonological deficits are significantly correlated with reading and learning disorders. However, from the variety of visual anomalies discussed, it soon becomes evident that vision, itself, is not a unitary disorder. In this review, the multifaceted nature of…

The relationship between subtests of the Illinois Test of Psycholinguistic Abilities and the Developmental Test of Visual-Motor Integration to a comprehensive battery of reading measures was investigated in a sample of 77 poor readers in grades 2 through 6. (Author/PHR)