How do the eyes of a dog help fetch ball?

The eyes of a dog are important for fetching a ball because they give the dog the ability to visually track the ball and determine its trajectory. This information allows the dog to coordinate its movements and position itself to catch the ball. Additionally, the dog's eyes help it to judge the distance and speed of the ball, which is necessary for timing its jump or other movements to catch it. The eyes also provide depth perception, which helps the dog to determine the location of the ball relative to other objects in the environment, such as trees, fences, and other animals.