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An Experimental Study Of Scotopic Sensitivity/Irlen Syndrome In Learning Disabled Students, Kathleen Hickam Farber
An Experimental Study Of Scotopic Sensitivity/Irlen Syndrome In Learning Disabled Students, Kathleen Hickam Farber
Dissertations and Theses
This study examined the effect on reading performance of a controversial treatment for a dysfunction of visual perception known as Scotopic sensitivity/lrlen Syndrome. The treatment, referred to as spectral modification, involved the use of colored transparent overlays for reading by four elementary school children in their actual school environments.
The diagnostic, prescriptive and remediation procedures used in this study were originally developed by Helen Irlen, a California psychologist and researcher. Irlen conceptualized Scotopic Sensitivity Syndrome as a difficulty in visual processing of the printed page when perceived through full spectrum light. Spectral modification techniques were considered controversial in that they …
An Investigation Of The Prevalence Of Severe Visual Impairment Among Handicapped Children: Implications For Educators, James Bickford
An Investigation Of The Prevalence Of Severe Visual Impairment Among Handicapped Children: Implications For Educators, James Bickford
Dissertations and Theses
Since the inception of special education legislation, the identification of severely visually impaired children has become a difficult task. Official prevalence rates for severe visual impairment currently vary from 8 per 10,000 to 120 per 10,000 school aged children. With such a large discrepancy in rates, it is difficult to plan and provide appropriate specialized services to this group of children.
Given this wide variance of reporting, several questions have arisen: (1) What is the prevalence of severely impaired vision as a secondary handicap when another handicapping condition is already known and identified? (2) Is there a significant difference between …