When we focus on something we usually do not notice our peripheral area, we may know there is something blurry around but we actually do not pay attention to it. Some people need to focus on the blur that surrounds where they stand on such as Athletes. They optimise their peripheral vision ability to see all around clearly.
An athlete is trained to upgrade their visual ability to detecting and tracking what come around as much as he could. In a game, anything could show up suddenly but Athletes can catch their environment condition quickly although they move so fast without losing any concentration. The combination of good footwork, body position and peripheral vision will help improve viewing time and give the opportunity to foreknow what next.
Athlete viewpoint is full of motion which means need to be skimmed but clear. Any object could emerge from any porous quickly, that compel the athlete to balance their head movement an eye motion to move faster in response. A volleyball player needs to stay in a position that ready to face the speed and angel of the direction of the ball and the other player movement.
Contrasting court backgrounds, enlightening, the obvious divergence of uniform and less of-court motion could help the athlete to exacerbate their visual. It is strange to using a grey uniform while bright colours would help them to keep on eyes in each member.
Everything that brings out distraction while they are in focus will carry pause moment. Pause moment will convey a blurred view during visual tracking error. Even, every single of blinking may occur interferes. Human blinking is about two or a half seconds every minute and it will be more if people under anxiety attack. This occurs prompt blurs while eyes motion in and out of focus on particular objects. Athlete trained to be able to anticipate and outgrow all non-visual moment.