Hi,
To improve your eyesight is not impossible. Short/Long Sightedness are illnesses. Therefore illness can be cured. The most important thing is to, Believe in yourself. Second, only use your glasses when you really need to use them. Don't be dependent on the glasses. I've done that and trust me it works. My eysight has improved. Before it was 6/24 now its 6/18 and 6/12 for a period of 1 year. It takes alot of believe. I hope it works for you too.
In Life There Is Hope, In Hope There Is Life