I used to have really good vision. then it started to fade. Only within a few years - not by much, and I certainly don't need glasses, but would like to improve it. I suspect it's because of excessive computer usage as a strain on the eyes - I've been raw the whole time pretty much but it could be because of toxins coming out and into the eye veins. what can I do to gradually improve my vision? any specific foods or methods? and the damn computer....lol...