There is atenet in ancient yoga that states that if abody part is placed in acertain position for a long period of time, that it will get used to being that way,and eventually it will remain that way. In light of the above, consider that when you read books, or are at the computer for long periods of time, your eye muscles contract in order to focus at anear distance. It works like this:
to focus on nearby objects, the ring shaped ciliary muscle around the lens contracts, making the lens rounder and thicker. To focus more on distant objects, the ciliary muscle relaxes making the lens flatter and thinner. If you do these activities (reading books, working in front of acomputer, etc) for long periods of time, and very regularly, then eventually your eyes will get used to focusing only at near distances, the ciliary muscle will get used to being in astate of contraction, and your far vision will start to deteriorate and become blurry. Understand that evolution designed your eyes to focus and both near ANDfar distances. Primitive man had to hunt and be able to see clearly at far distances, but modern man spends alot of time indoors with artificial lighting and focusing predominantly at near distances. That is why there is now widespread myopia and more and more people who need glasses.
complete your reading @
http://cliniconomy..com/2013/09/what-causes-near-sightedness-and-how.html?m=1

Xooo Waht ar d natural wayz 2 reverse it??