Look out a window, or do this outside if possible. Shift your weight to your right foot, and swing your upper body to the right, letting the heel of your left foot come up off the floor. Watch your surroundings as you swing. If you can see a tree out the window or in the distance, notice how it seems to move opposite to the direction you are swinging. This exercise is good for your eyes and your back.
Vision shifting It's as simple as it sounds.
Whenever it occurs to you that you've been spending too much time staring at that monitor right in front of your face, purposely shift your vision to look at the weave of the fabric on your sleeve, or the poster on the wall, or the tree across the street. This site offers illustrated versions of these Bates exercises and more, plus discussions of other methods people have tried for improving their eyesight. You can even sign up for a free email newsletter. This website also carries personal stories of people who have improved their eyesight without glasses, and essays on controversial topics such as prevention of myopia, and a deconstruction of glaucoma. Old Eyes Old Eyes will let you download a free eyechart and an astigmatism chart.