Be careful if you spend money on a product to improve your eyesight. I just found out that a product called the "See Clearly Method", which I've heard advertised a lot in this area, was just shut down
by court order for alleged deceptive practices and the inability to substantiate their claims. From the article, a lot of the excercises the See Clearly Method uses sound similar to those described in other posts here. Perhaps a bit of diligent research is in order here.