Original Research

Dyslexia: An overview

S. O. Wajuihian, K. S. Naidoo
African Vision and Eye Health | South African Optometrist: Vol 70, No 2 | a102 | DOI: https://doi.org/10.4102/aveh.v70i2.102 | © 2011 S. O. Wajuihian, K. S. Naidoo | This work is licensed under CC Attribution 4.0
Submitted: 11 December 2011 | Published: 11 December 2011

About the author(s)

S. O. Wajuihian, African Vision Research Institute (AVRI) University of KwaZulu-Natal
K. S. Naidoo, International Center for Eye Care Education, South Africa

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Dyslexia is a neuro-developmental disorder characterized by difficulties in learning to read despite conventional instruction, adequate intelligence and a balanced sociocultural background.  Dyslexia is the most common type of learning disorder.  Reading difficulties affect a child’s academic achievement.  As primary eye care practitioners, optometrists have a role in attending to patients who may present with symptoms indicative of dyslexia, therefore an understanding of dyslexia will be beneficial to the optometrist.  This paper presents an overview of dyslexia and discusses its prevalence, aetiology, classifications, neural pathways involved in reading, theories, neuro-imaging techniques and management options. The role of optometry in the multidisciplinary management of dyslexia is discussed.  (S Afr Optom 2011 70(2) 89-98)


Learning disability; dyslexia and optometry; reading difficulties


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