VisionLink – New learning through sight

Vision Link Behavioural Optometrists provide research based treatment for convergence insufficiency, oculomotor dysfunction, spelling and reading problems, dyslexia, attention deficit disorders, Aspergers, Learning Related Vision Disabilities, migraine and brain injuries. We are uniquely positioned to assist Visual Perception through the use of Vision Therapy, Irlen tinted lenses and Cellfield Intervention.

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Home > How We Help > Learning Related Problems > Visual Disabilities: Dyslexia & Dyseidesia, Irlen Syndrome > Learning-Related Visual Disability

Learning-Related Visual Disabilities

Facts & Figures from the College of Optometrists in Visual Development (COVD)

  • The National Parent Teacher Association (PTA) of America estimates that there are 10 million children under 10 years of age in the U.S. that have vision problems.1
  • Up to 25% off all school age children have vision problems significant enough to impair academic performance. The rate may be as high as 60% for those children labeled as having learning problems.2
  • An evaluation of the visual efficiency of beginning readers in a public school found that visual factors were the primary cause of reading failure and that most current school screenings are inadequate to detect these problems.3
  • A study of inner city youths found that poor vision is related to academic and behavioral
    problems among at-risk children.4
  • Vision problems are often typically misdiagnosed as learning disabilities or ADD/ADHD leading to special education intervention and unnecessary drug treatment of school children.
  • The 20/20 eye chart test (or 6/6 as we call it in NZ) only measures what you can see "far away", not the "up-close" ability to see books or computers, nor the ability of the eyes and brain to work together in processing visual information.
  • Thorough vision examinations measure eye teaming (how the eyes work together), focusing (ease in sustaining focus for up-close work), and tracking skills (how accurately and
    smoothly eyes move together across a page of print) as well as visual information processing
  • Developmental Optometrists can provide vision examinations that fully assess these vision
    problems. These doctors are trained in evaluation of learning-related vision problems and
    treatment using special glasses and vision therapy.
  • Studies have shown that the correction of vision problems with vision therapy leads to
    significant reduction in visual symptoms and improvements in reading performance.5, 6, 7


1. National Parent Teacher Association
2. American Foundation for Vision Awareness
3. Optometry & Vision Development
4. Journal of Behavioral Optometry
5. Binocular Vision & Eye Muscle Surgery Quarterly
6. Optometry and Vision Science
7. Optometry: Journal of the American Optometric Association