After spending some time dealing with the trouble and expense of glasses or contacts, many people look at vision therapy exercises as a way to improve their vision naturally. Be advised that these methods were devised for conditions that arise from habitual strain myopia, hyperopia, and astigmatism. Conditions like glaucoma or injuries will most likely not respond to these methods as readily.
A key step is to first relax your eyes. This can be done by palming, which is covering your eyes with your hands, or by basic meditation style relaxation. Whatever the route you take, be sure have your eyes fully relaxed for several minutes before moving to the exercises. This is important because as soon as you start using your eyes again your muscle memory will start to place the same old strain on them, and you have to be alert and notice the feeling of it coming back.
Once you have fully loosened up it's time to move on to training. There are several parts to this. One method is called tracking, which involves either focusing on a stationary target, shifting focus from one target to another, or following a moving target (called swinging). While swinging you follow an object through your plane of vision, typically from side to side (as in following a swinging pendulum), though the object can move in any direction, and you should try it with both eyes and one eye at a time.
Next is a focusing exercise. Hold your fingers about an inch apart, roughly 6-8 inches in front of your nose. Bring your focus in closer (cross your eyes) until you see 3 fingers in the background; the original 2 at the sides and 1 with full color in the middle. This works on up close focus. Then, moving fingers a little away from you face and perhaps a little closer together, focus on a point far in the distance until you see the same thing again 3 fingers. It might take a little practice to adjust the distances, but you'll get it soon enough. Alternate between up close and far away focus quickly for a few minutes.
The point of these exercises is to develop muscles and receptors in your eyes that have become dormant after long periods if not being used. The theory being that habitual strain causes poor vision, but proper vision therapy exercises can return your eyesight to its original condition.
