Quote: "With these conditions, any permanent damage which has already been done cannot be reversed. For example, if a person with macular degeneration has 70% vision when they begin using these remedies, they can only expect to maintain 70% vision. Thy cannot reverse permanent damage."
In macular degeneration, the cells which detect light (which enable us to see) can be destroyed. Destruction of these light-detecting cells is permanent damage.
In contrast with this, cateracts can be eliminated by an effective detoxification program. Few people with cateracts actually undergo an effective detoxification program, but those who do can eliminate cateracts, and have 100% vision again.