Frequency of Visual Deficits in Children With Developmental Dyslexia

JAMA Ophthalmology
Aparna RaghuramDeborah P Waber

Abstract

Developmental dyslexia (DD) is a specific learning disability of neurobiological origin whose core cognitive deficit is widely believed to involve language (phonological) processing. Although reading is also a visual task, the potential role of vision in DD has been controversial, and little is known about the integrity of visual function in individuals with DD. To assess the frequency of visual deficits (specifically vergence, accommodation, and ocular motor tracking) in children with DD compared with a control group of typically developing readers. A prospective, uncontrolled observational study was conducted from May 28 to October 17, 2016, in an outpatient ophthalmology ambulatory clinic among 29 children with DD and 33 typically developing (TD) children. Primary outcomes were frequencies of deficits in vergence (amplitude, fusional ranges, and facility), accommodation (amplitude, facility, and accuracy), and ocular motor tracking (Developmental Eye Movement test and Visagraph eye tracker). Among the children with DD (10 girls and 19 boys; mean [SD] age, 10.3 [1.2] years) and the TD group (21 girls and 12 boys; mean [SD] age, 9.4 [1.4] years), accommodation deficits were more frequent in the DD group than the TD group (16 [...Continue Reading

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Citations

May 31, 2019·JAMA Ophthalmology·Aparna RaghuramDeborah P Waber
May 31, 2019·JAMA Ophthalmology·James E Elder, Glen A Gole
Sep 29, 2020·Clinical Optometry·Jameel Rizwana Hussaindeen, Amirthaa Murali
Aug 4, 2020·The European Journal of Neuroscience·Jean Duchesne, Olivier A Coubard
Jan 15, 2021·Scientific Reports·Nouk TankeJeroen Goossens
Dec 19, 2020·Scientific Reports·Lindsey M Ward, Zoï Kapoula
Mar 11, 2021·Clinical Optometry·Alessio Facchin
Mar 18, 2021·Applied Neuropsychology. Child·Marie VernetStéphanie Ducrot
Mar 21, 2021·Scientific Reports·Léon FranzenAaron P Johnson
Aug 13, 2021·Brain Injury : [BI]·Sowjanya GowrisankaranAparna Raghuram
Dec 3, 2021·Dyslexia : the Journal of the British Dyslexia Association·Zoey StarkAaron P Johnson

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