Clean your eyes with pure cold water regularly. This is one of the best ways to keep eyes healthy & disease free. Avoid Looking directly at the sun, artificial light or shining objects. Direct rays of bright light can damage the retina. Roll your eyes up & down & then side to side. Now move your eyes in a circular motion. Repeat this exercise five to ten times to relax your eyes. Maintain a good distance from the computer screen- sit approximately 22 to 28 inches away from it. Sitting too close or too far may increase the strain on eyes.