Binocularity is one of the more important visual skills. Binocularity gives us the ability to focus on an object with both eyes to create a single image. This requires us to be able to converge. Both eyes have to work together as a team at the same time to allow us to focus on the same visual target together. Binocularity gives us the sensory and motor ability to use our eyes for vergence (convergence and divergence), fusion, and depth perception. Processing images with both eyes allows our visual system to see 3 dimensionally, also called stereopsis, which in turn allows us to judge distance, depth and detect movement.
Eye teaming is the ability for both eyes to work together to process an image correctly. When we cannot produce the skills needed for eye teaming, we lose the ability to concentrate on work that is close up because it distorts the words and letters and causes double vision. Double Vision or diplopia is the simultaneous perception of two images of a single object. When the two eyes fail to work together, performance is hindered in many areas like reading, sports and depth perception.
Vision Therapy can help those who lack the necessary visual skills for effective reading, writing, and learning. Vision Therapy helps individuals develop normal coordination and teamwork of the two eyes for binocularity.