The book reiterated other eye exercises and mental insights I had read previously, but there cannot be enough books out there on this subject. I practiced the techniques, and stopped my vision from getting worse. My prescription was -7.50 in both eyes, and was getting worse at about -.25 every year or so. Not only did I stop my eyes from getting worse, I reversed them, and I am now at a -7.25 prescription. I have plateaued at this level, but must admit, I have not been exercising my eyes as vigorously as when I first started. I have had problems finding an eye doctor that supports this method of treatment. In fact, when my presciption went down and I told him what I had been doing, he totally blew me off, and told me that the previous doctor must have examined my eyes wrong and given me too strong of a prescription.