The visual system occupies an important place in the brain, brainstem and cerebellum. It is strongly involved in many cognitive tasks, such as language learning. Vision is also an essential part of the balance system, together with information from the inner ear and somesthesia.
Given its importance for the central nervous system, the functioning of the visual system can be impaired in a large number of neurological conditions, ranging from simple concussion to tumours or strokes, as well as inflammatory diseases such as multiple sclerosis.
Therefore, whether it is a child with a severe learning disability (dyslexia, dysgraphia, dysorthographia), an adult with a reading disability, or both with a balance problem caused by exposure to certain visual situations, it is necessary to look for an orthoptic problem (binocular vision problems, strabismus, oculomotor paralysis) or a neurovisual pathology. This is often combined with a video-oculography.