Each eyeball contains six muscles that allow us to move our eyes and just like the muscles in our body, we need to exercise them.
Eye training exercises were created to help people improve sight, eye comfort, focus and coordination. Allowing your eyes to be in one position for a long period of time will cause them to become dry, sore and weak. If your eyes become dry, shut them as tightly as possible for 5 seconds, do this 5 times; this should help bring the moisture back to your eyes. You can also warm up your hands and cup them over your eyes or massage your temples. Massaging your temples will restore the blood flow to your eyes allowing in more oxygen.
If you focus on one thing for a long time frame, such as a computer or book, you may begin to strain your eyes and train them to primarily focus on a short distance. When you spend hours staring at something close to you, your eyes need to take a break. Use the eye training exercise of focusing on something that is at least ten feet away from you from at least ten minutes.