Vision Improvement
We know that all muscles in the body needs exercise to stay fit and healthy. We also know that the brain is remarkably responsive to training - creating new pathways and connections.
We have a cultural "blindspot" when it comes to vision improvement. Most of the common vision problems are connected to (a) muscles related to the eye and/or (b) how the brain interprets the signals. Still, few engage in active excercises to keep their vision healthy and improve poor vision.
Many techniques have been developed, and most of them are quite similar to each other. Some come from Taoist and Indian yoga, other from the West (the Bates techniques, Feldenkrais, etc). As with all techniques and therapies, they work very well for some, relatively well for many, and not so well for a few (in this case, about 10-15%).
Sources:
Association of Vision Educators
Natural Vision Improvement, Janet Goodrich (the book that helped me)
Meir Schneider (book, video, training)
I was moderately nearsighted and had frequent eye related headaches, and through Taoist yoga, Feldenkrais and the Bates method improved my vision from 20/40 to 20/15 and with no headaches. When I feel strain coming, I have techniques that work.