James R. Griffin

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BACKGROUND This study was designed to address a perceived major flaw in past studies investigating tinted lenses and dyslexia; i.e., the lack of a direct, scientifically validated means of diagnosing the type and severity of dyslexia. METHODS Sixteen 5th and 8th grade students, found to be dyslexic based on testing via the Dyslexia Determination Test(More)
The prevalence of dyslexia among 100 children participating in a longitudinal study was examined. At age 10 years, The Dyslexia Screener (TDS) test, a direct assessment of coding skills used in reading and spelling, was administered. The incidence of suspected dyslexia of borderline or worse severity among boys and girls was not significantly different, nor(More)
Opinions differ concerning the relation between dyslexia and visual perception. In this pilot study we addressed this question by analyzing the results of visual perceptual testing on 19 elementary grade subjects diagnosed as having dyseidesia, one type of dyslexia that manifests as problems with sight-word recognition. The subjects, who have different(More)
Optometry's involvement in the management of reading disabilities is often misunderstood. This paper clarifies the confusion surrounding specific reading disabilities and optometric vision therapy in the management of them. Topics include a historical review of dyslexia, theories of brain function, and a neuroanatomical model, as well as operational(More)
An apparatus for strabismus detection was designed to allow photographing fundus and corneal reflexes for Brückner and Hirschberg testing, respectively. Photographs of adult subjects with simulated strabismic deviations were viewed by two groups of observers, optometry students and optometry faculty. In general there was no significant difference in testing(More)
The nine pedigrees presented here suggest an autosomal dominant mode of transmission for the dyseidetic type of dyslexia. Sex-influence probably accounts for the high male to female ratio. Other modes of transmission are highly unlikely for dyseidesia but possible for other types of dyslexia, with the multifactorial mode being most likely. Genetic(More)
An investigation exploring the potential for the therapeutic application of videocassette techniques in vision therapy was undertaken. It was shown that a saccadic therapy program could be designed and produced with reasonable ease and simplicity. Clinical trials revealed the video method of saccadic therapy to be as effective as a standard method of(More)
INDIRECT EVIDENCE has long supported the idea that catecholamines play an important role in fat metabolism." 2 Direct evidence for this was obtained in 1956, when investigators, Dole3 and Gordon and Cherkes,4 working independently, demonstrated that the intravenous infusion of aqueous epinephrine in humans results in a significant rise in the level of(More)