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Vision Therapy: Evidence-Based Research

By Dr. Russel Lazarus
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Provided below are references for published research articles on the topic of vision therapy and its effectiveness for the treatment of many vision conditions.

Please note: Some of the references are available as links to original published research or complete articles in PDF format. The articles can also be located on-line at Pubmed.org. and photocopies of the remaining publications can be requested from the International Library, Archives and Museum of Optometry (ILAMO), St. Louis, Missouri. Phone 800-365-2219.

1. Randomized Clinical Trial of Treatments for Convergence Insufficiency in Children

Finding: Office-based vision therapy is an effective treatment for children with Convergence Insufficiency.

Published by: Mitchell Scheiman, OD; Susan Cotter, OD, MS; G. Lynn Mitchell, MAS; Marjean Kulp, OD, MS; Michael Rouse, OD, MEd; Richard Hertle, MD; and Maryann Redford, DDS, MPH. ‘Convergence Insufficiency Treatment Trial (CITT) Study Group. A randomized clinical trial of treatments for convergence insufficiency in children. Archives of Ophthalmology 2005’; 123:14-24.

For the PDF version of this article: Randomized Clinical Trial of Treatments for Symptomatic Convergence Insufficiency in Children. Archives of Ophthalmology, Vol. 126 No. 10, October 2008

2. Best Treatment Determined for Childhood Eye Problem

Finding: 75 percent of the children who had weekly office-based vision therapy, coupled with 15 minutes of at-home exercise five days a week, experienced significant improvement in their convergence in 12 weeks.

Published by: Mayo Clinic: ‘Best Treatment Determined for Childhood Eye Problem’ : Treatment of Convergence Insufficiency with Vision Therapy.

3. Effective Treatment Identified for Common Childhood Vision Disorder

Finding: Scientists find a more effective treatment for a common childhood eye coordination problem called convergence insufficiency (CI).

Published by: National Eye Institute, ‘More Effective Treatment Identified for Common Childhood Vision Disorder’: Evidence-Based Treatment for Convergence Insufficiency

4. Study Reveals Developmental Mechanisms of Eye Movement

Finding: Genes linked to Autism Spectrum Disorder (ASD), and other developmental brain abnormalities, may be playing a role in people who cannot control their eye movements.

Published by: National Eye Institute: Autism and Eye Movements, 2019: Autism linked to Eye Movement Control

SEE RELATED: 2021 Update: Vision Therapy Research

Find a Vision Therapy Eye Doctor Near You

5. The Amblyopia Treatment Studies: Implications for Clinical Practice

Finding: Patching times can be reduced and still achieve a similar visual improvement.

Published by:  Angela M. Chen, Susan A. Cotter: Adv Ophthalmol Optom. 2016 Aug’ The Amblyopia Treatment Studies: Implications for Clinical Practice’; Amblyopia Treatment Studies:

6. Vision, ADHD, and Learning

Summary: Selected essential resources and links for teachers and other professions.

Vision, ADHD and Learning: Click here for link to articles:

7. Vision, Learning, and Dyslexia

Summary: A policy statement that addresses important issues regarding the identification and treatment process for individuals with learning-related vision problems and dyslexia.

Official Statement, approved by the American Academy of Optometry (AAO), American Optometry Association (AOA), American Foundation for Vision Awareness (AFVA), College of Optometrists in Vision Development (COVD), Optometric Extension Program Foundation (OEPF).

A Joint Organizational Policy Statement of the American Academy of Optometry and the American Optometric Association. ‘Vision, Learning, and Dyslexia’. 1997. Complete article – PDF version

8. Research on the Efficacy of Vision Therapy for Specific Visual Dysfunctions

Finding: Optometric and ophthalmological research supports the efficacy of vision therapy for treatment of the visual dysfunctions discussed in this article.

Published by: Cooper, Jeffrey. Summary of Research on the Efficacy of Vision Therapy for Specific Visual Dysfunctions. Adapted from The Journal of Behavioral Optometry 1998; 9(5):115-119. Complete article – PDF version

9. A Joint Organizational Policy Statement of the American Academy of Optometry and the American Optometric Association 

Summary: A policy statement describing the goals of a vision therapy program, and its effectiveness for treatment of a wide variety of vision conditions.

A Joint Organizational Policy Statement of The American Academy of Optometry and the American Optometric Association. ‘Vision Therapy: Information for Health Care and Other Allied Professionals’. 1999. Complete article – PDF version

10. Effective Treatment of Convergence Insufficiency

Summary: Although CI is quite common, with reported rates of prevalence ranging up to 13%, this pilot study by Scheiman and colleagues does move forward our understanding of the treatment of this disorder.

Published by: Kushner Burton J. ‘The Treatment of Convergence Insufficiency. Archives of Ophthalmology 2005’, 123:100-101. Complete article – PDF version

LEARN MORE: Vision Therapy for Children

Additional references and scientific studies:

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  • American Optometric Association. Definition of optometric vision therapy, St. Louis, MO, June 1991.
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  • Bass S.J., Cooper J., Feldman, Horn D. Comparision of an Automated Confrontation Testing Devise vs Finger Counting in the Detection of Visual Field Loss (in preparation)
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  • Cooper, J., Selenow, A., Ciuffreda, K.J., et al.: Reduction of asthenopia in patients with convergence insufficiency after fusional vergence training. American Journal of Optometry and Physiological Optics, 1983, pages 982-989.
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  • Future of Visual Development/Performance Task Force. Report on the efficacy of optometric vision therapy. J Am Optom Assoc 59(2):95-105, 1988.
  • Gallaway, M., Scheiman, M.: The efficacy of vision therapy for convergence excess. Journal of the American Optometric Association, 1997, pages 81-85.
  • Garzia, R., Richman, J.: Accommodative facility: a study of young adults. Journal of the American Optometric Association, 1982, pages 821-824.
  • Garzia, R.P.: The efficacy of visual training in amblyopia: A literature review. American Journal of Optometry and Physiological Optics, 1987, pages 393-404.
  • Goldrich, S.G.: Oculomotor biofeedback and intermittent exotropia. American Journal of Optometry and Physiological Optics, 1982, pages 306-317.
  • Goldrich, S.G.: Optometric therapy of divergence excess strabismus. American Journal of Optometry and Physiological Optics, 1980, pages 7-14.
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  • Grisham, J.D., Bowman, M.C., Owyang, A., Chan, C.L.: Vergence orthoptics: validity and persistence of the training effect. Optometry and Vision Science, 1991, pages 441-451.
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