After the vision system analyzes information it receives through eyes, it has to direct, control, and guide the hand movement so that one can complete the required action. This is known as one's hand to eye coordination. It basically involves using the eyes to maneuver hands for accomplishing a task. As most of the movements of the hands would require visual assistance, one needs to have a good hand-eye coordination, even to perform simple tasks like catching a ball, writing, and developing good motor skills.