Sportsmen and women are often unaware just how much their performance depends upon sight. Sports performers not only have to be able to see distant objects clearly, they also have to separate and differentiate objects from ever-changing backgrounds as well as judge distances and speeds. Good vision is very important in all sports and vital in many. Consequently, an awareness of this fact and how we can both improve and protect sports vision can help enhance performance.
Visual sensitivity is not just about being able to see as far as possible. At distance, the eyes need to be able to judge subtle differences in contrast between an object and its background, in all light conditions. Fine binocular sensitivity allows the distance of objects to be judged accurately and quickly. Peripheral awareness (ability to see objects and movement outside of the direct line of vision) is used to anticipate an opponent's intentions and to locate objects approaching from the side or above. The speed and endurance of the eyes' focusing system is particularly important. Good central and peripheral vision as well as eye body co-ordination is important in the avoidance of injury. Problems with eye dominance can lead to eye strain and loss of accuracy and this in turn will create tension which will lead to loss of control.
Visual Reaction Time
The visual system cannot make instant decisions. The fastest Olympic reaction times are around 0.2 seconds and if the time for moving the hands or feet into position is added, it is nearly 0.4 seconds. The athlete who anticipates best has the advantage and this depends on experience and optimising vision.
Association of Sportvision Practitioners
The Association of Sportvision Practitioners (ASP) was established with the aim of promoting and advancing all aspects of vision relating to sporting activities. It is a multi-disciplinary body with a membership drawn front sporting organizations and participants, as well as from commerce, eye care and sports vision specialists in the UK. The ASP has developed three main areas of interest in sports vision.
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