Binocular vision tests are guided by the principle that uniform motion and focus of the eyes may be trained, but exercising the simultaneous movement of the pupils is necessary and important in achieving optimal and lasting results (Horwood & Toor, 2014). These tests have been in use for over 70 years and represent the foundation of treatment for convergence insufficiency and other visual dysfunctions. Despite their frequent use, these tests have yet to be formally evaluated for their validity or reliability in healthy adults.