Abnormal Developmental Eye Movement test (DEM) results.Restricted overall fusional vergence ranges at far and near.Restricted relative convergence (BO) at far and near.Uncorrected hyperopia/ astigmatism (due to inability to.The following are oculomotor and visual symptoms of binocular vision dysfunction. Signs and symptoms of general binocular vision dysfunction The vision therapy treatment of both convergence and accommodation problems has been recently proven in randomized clinical trials and related follow-up studies. The most common binocular vision problems are dysfunctions of convergence and accommodation. These are sensory motor skills that allow us to move our eyes so that we can fixate on objects (fixation), move our eyes smoothly from point to point as in reading (saccades) and to track a moving object (pursuits). The inability to quickly and accurately move our eyes. When looking at far away objects, both eyes should turn outwards and maintain single vision. The inability to use both eyes as a team when looking at something in the distance. When looking at near objects, both eyes should turn inwards and maintain single vision. The inability to use both eyes as a team when looking at something up close. Also, the eyes must be able to quickly and accurately change focus from distant to near objects. The eyes must be able to sustain focus for long periods of time when doing near work. Subcategories of binocular dysfunction include: Accommodative disorders ![]() ![]() ![]() The therapy procedures conducted come from classical optometric vision therapy, including included Hart Charts, Brock String, consciousness of physiological diplopia, accommodative facility with lens flippers, Aperture Rule, vectograms, and vergence facility. Vision therapy has proven to be a safe and effective treatment for binocular vision dysfunctions, even when they are caused by a traumatic brain injury.įor example, a recent study in the October 2013 issue of the journal Binocular Vision & Strabismus Quarterly, entitled, "Evaluation of Binocular Vision Therapy Efficacy by 3D Video-Oculography Measurement of Binocular Alignment and Motility" demonstrated that binocular vision therapy was effective when applied to two patients with divergence excess. In a paediatric population, the prevalence of binocular disorders have been found to be 9.7 times greater than the prevalence of any other ocular disease. This movement is controlled by the brain. Each eye has six eye muscles that move the eyes in a coordinated manner. General binocular dysfunction is the inability to move your eyes together in an effective manner. Impact on school and academic performance
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