If you are interested in learning more about vision therapy, would like to review the latest research, or you wonder how it can be used to help you or someone you love, we have collected a variety of links to provide you with additional information.

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Vision Therapy Reference, Research and Scientific Studies

For the teachers, parents, children, and patients who wrote hundreds of Vision Therapy Success Stories “seeing is believing.” Other readers ask to see the scientific evidence. … read more.

The Latest Research on Convergence Insufficiency

The National Eye Institute, a division of the National Institutes of Health for the U.S. Department of Health and Human Services, released a statement concerning the effectiveness of office-based vision therapy for treatment of…read more.

Research on Vision Therapy

COVD has compiled two summaries of research and clinical studies on optometric vision therapy… read more.

Journal Articles

White Papers on Vision Therapy

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Literature on Acquired Brain Injury

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Position Papers

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Helpful Links

Visual Rehabilitation for Brain Injury

Traumatic Brain Injury and Hidden Visual Problems

By Optometric Extension Program. Because there is a close relationship between vision and the brain, traumatic brain injury (TBI) can disrupt the visual process. Visual problems resulting from TBI are often overlooked during initial treatment of the injury. This can lengthen and impair the rehabilitation process… read more

About Vision Problems Associated with Brain Injuries

Learn more about the many forms of brain injury, and what resources are available for people who experience difficulties with vision following an injury to the brain… read more


Vison & Learning

Vision and Learning Disabilities

Learn what symptoms to look for and how problems with convergence, adequate visual function, or visual perception can contribute to learning disabilities, or even be mistaken or misdiagnosed as learning disabilities themselves… read more

Eyestrain, Headaches, Blurry or Double Vision

Convergence Insufficiency (CI) is the leading cause of blurry vision, eyestrain, double vision, and/or headaches (including those with near vision). Learn more about this fairly common visual condition and how it can be effectively treated. read more

Vision and Learning

Browse through this large collection of articles by the PTA, School Nurse News, Web MD, professors, eye doctors, and more… read more

Convergence Insufficiency (CI) and Reading Problems

Learn how and why CI can interfere with the ability to read, learn, and work at near or close distances, complete with illustrations… read more

Vision Therapy and Learning Disabilities

As part of an interview, an eye doctor discusses whether vision therapy helps learning disabilities and learning-related vision problems. read more

Dyslexia and Vision

The American Academy of Optometrists and the American Optometric Organization discuss vision, learning-related vision problems, and dyslexia… read more

Vision and Attention Deficit Disorder

Is it really ADD/ADHD, or is it an undetected vision problem? read more

Poor Binocular Coordination

Lazy Eye, Crossed-Eyes, Double Vision, Strabismus

An expert on strabismus covers the most frequently asked questions about eye turns and much more on what may be the most comprehensive website on the subject… read more

What is Lazy Eye?

Learn the difference between lazy eye and strabismus (a crossed eye or an eye turn), with this easy-to-understand explanation… read more

Children’s Vision

This comprehensive site offers easy-to-understand information on lazy eye, crossed-eyes,
strabismus, developmental delays, eye muscle surgery, dyslexia, binocular vision impairments,
and much more… read more

Eye Muscle Surgery

Learn how this surgery is frequently performed as a treatment for lazy eye, crossed eyes and
other problems, and how it often fails to provide satisfactory results… read more

Convergence Insufficiency

Convergence Insufficiency (CI) and Reading Problems

Learn how and why CI can interfere with the ability to read, learn, and work at near or close distances, complete with illustrations… read more

Amblyopia, Diplopia, Strabismus

All About Strabismus

Learn more about this condition, and how strabismus (not the same as “lazy eye”) or tropia are the medical terms for eye conditions commonly called by various names: eye turns, crossed
eyes, cross-eyed, wall-eyes, wandering eyes, deviating eye, etc… read more

The Stereo Vision Project

What is stereo vision, and what is a binocular (two-eyed) vision impairment? read more

All About Amblyopia

Learn more about amblyopia, commonly known as lazy eye. This eye condition is noted by reduced vision not correctable by glasses or contact lenses and is not due to any eye disease.
The brain, for some reason, does not fully acknowledge the images seen by the amblyopic eye. This almost always affects only one eye but may manifest with reduction of vision in both eyes.
It is estimated that three percent of children under six have some form of amblyopia… read more here or here

3D Vision (Binocular Vision)

What is binocular vision, how does it work, and why do we need it? read more


Learn to see in 3D! Visit the 3D Art Gallery and view Magic Eye stereograms, stereo photographs, optical illusions, and much more. read more

Eye Doctors and 3D Vision

Eye doctors use stereoscopic 3D images to develop and reinforce 3D vision… read more

Visual Rehab for Special Needs

Nonverbal Learning Disorder (NLD), Eye Tracking, Special Education Students

By Agnes Blum. Approximately 800 children were tested for three major vision issues: tracking, converging (having both eyes lock onto the same object at the same time), and focusing. More than 50 percent of the students failed, and many of these students had 20/20 eyesight, according to Orfield. That’s because the traditional eyesight test—the Snellen wall chart—tests only whether a child can clearly see letters 20 feet away. It does not test the ability to see objects that are close… read more here


Attention deficit disorder (ADD) and attention deficit hyperactivity disorder (ADHD, AD/HD)—a
developmental approach… read more

General Links

What is a Complete Eye Exam?

It is not enough to test the clarity of eyesight at a distance of 20 feet (known as 20/20). A complete visual evaluation tests many aspects of vision. Details

Choosing an Eye Doctor

Comments by educators on choosing pediatric vision care for a child. Details

What is Vision Therapy?

Various definitions of vision therapy by American Optometric Association, eye doctors, and patient advocates are offered here. Details

Vision Glossary

Build your visual health vocabulary. Details

Optometrists and Ophthalmologists

What are the differences in practice focus between a pediatric optometrist and a pediatric ophthalmologist? Details


Parents Active for Vision Education. Details

National Directory of Eye Doctors

Find an eye doctor in another state. This directory provides free referrals to eye doctors who offer specialized services, such as vision therapy, neuro-optometric rehabilitation, therapeutic lenses, preventive care, and more. Details

Optometric Organizations

Optometrists Network

A national network of optometrists. www.optometrists.org

NORA, Neuro Optometric Rehabilitation Association International, Inc

An organization that provides direction for the visual rehabilitation of persons who have physical disabilities and/or traumatic brain injuries (TBI). www.nora.cc

COVD, The College of Optometrists in Vision Development.

An international professional organization granting board certification in Vision Therapy to optometrists. www.covd.org

AOA , The American Optometric Association

Organization of 32,000 optometrists. www.aoa.org

OEP, Optometric Extension Program Foundation

Serving the educational needs of optometrists. www.oepf.org