Specific learning disabilities affect the brain's ability to process verbal and non-verbal information efficiently and accurately. The most common learning disability is reading disability which includes dyslexia. Evidence supports that dyslexia is a language-based disorder. The core deficit of dyslexia is the phonological component of language…

In 73 children (6-13 years old) with reading difficulty, ophthalmological evaluation showed that 18 had overt refractive errors, 18 dyslexia and no ocular anomalies, and 37 impaired fusional amplitudes, 24 of whom were dyslexic. In all Ss with poor fusional amplitudes the reading mechanism could be improved with orthoptic exercises. (Author/CL)

Paper presented at the Annual Conference of the National Society for the Prevention of Blindness (Milwaukee, Wisconsin, May 15, 1969).

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…