The term "tracking skills" is sometimes used to describe subjective estimates of ocular motor function in relation to reading performance. Unfortunately, the term is vague and is used variously to refer to saccadic eye movements (e.g., performance when changing fixation between two pens), saccadation of pursuit (e.g., the presence of nonsmooth movements when following a slowly moving pen), or a remote near point of convergence (e.g., eyes appear unable to converge on a pen approaching the nose). These three types of eye movements are very different, but it is possible that all three types of observation may be related to lapses of concentration by the subject. Dyslexia is often associated with attention deficit disorder (with or without hyperactivity) and this might account for much of the controversy relating to the relationship between eye movement dysfunction and dyslexia (Evans, 2001). It should also be noted that even when subjects can converge to their nose, when asked to make the effort, this does not necessarily mean that they have a full range of vergence eye movements, or that their binocular vision is normal.
Was this article helpful?
This is a comprehensive guide covering the basics of dyslexia to a wide range of diagnostic procedures and tips to help you manage with your symptoms. These tips and tricks have been used on people with dyslexia of every varying degree and with great success. People just like yourself that suffer with adult dyslexia now feel more comfortable and relaxed in social and work situations.