We pretend to place the optical-ophtalmologycal approach, which has ruled in most of the exposed reports, in the functional analysis the sportsman (and technical) need to have in order to improve the athlete’s behaviour depending on the demand and/or characteristics of the sport. In this explanation the important necessity of the ophtalmologycal analysis is accepted, and the  adjustement of the optical so that the athlete has a better visual information (as it has been explained in the firsts reports of this monographical), but we explain a proposal about the location of these bio-medical knowledges in the area of the sportive necessity. We rebound the importance of the human perception as a psychological process that will permit –through the psychological training- improve the visual attention, which with an adjustement of the psychological output condition (for example: competitive stress management) wich will give place to an output improvement.