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Are changes in the stomatognatic system able to modify the eye balance in dyslexia?

Abstract : Objectives: To clarify the link between eye muscle function and oral information by comparing 21 dyslexic readers (DR) and 14 normal readers (NR).Methods: Changes in vertical heterophoria (VH) were measured using the Maddox Rod Test performed according to oral modifications and postural conditions. The Spearman correlation was used to assess whether reading delay was correlated with the lability index.Results: Overall, 50% of NR children and 81% of DR experienced at least one variation in visual perception (p = 0.053). Among DR, the less reading delay they had, the higher their index of lability (p = 0.026), whereas there was no significant correlation among NR. Changes in the Maddox Test were more frequent in DR than in NR after the addition of sensory and postural stimuli, except for one specific posture. For sensory stimuli, the mean lability index was 1.35 in NR and 4.19 in DR, (p = 0.001). For postural stimuli, it was 0.71 and 2.61, (p = 0.003).Conclusions: It is possible to modify visual perception by changing sensory or mechanical stimuli. Changes are more frequent in DR than in NR. Postural control can be improved with guided oral stimulations.Significance: These results reinforce the importance of professional cooperation in the care of dyslexic readers.
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Submitted on : Friday, October 22, 2021 - 3:49:51 PM
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Alexandre Mettey, Anne-Marie Bouvier, Valerie Jooste, Yves Boucher, Patrick Quercia. Are changes in the stomatognatic system able to modify the eye balance in dyslexia?. Journal of Oral Biology and Craniofacial Research, 2019, 9 (2), pp.166-171. ⟨10.1016/j.jobcr.2019.03.005⟩. ⟨hal-02139541⟩

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