Re:nonsense! (Score 2, Informative)

Oh-please! Don't fall for this nonsense! The mechanisms of myopia and the like are very well studied and understood.

While your "looking habits" probably can do something to your vision during eye developement (i.e. childhood) this whole eye-training thing is totally bogus.

Myopia is not caused by tensions of muscles - strain on those is a result of the (insufficiently corrected) myopia. The reason for myopia is that the eye bulb is too long and thus the image projected by the lens system would be in focus a little in front of the retina. In the case of close objects (e.g. computer screen) this can be compensated by "accomodation" (i.e. focussing closer). Of cause a person with myopia has to focus "harder" compared to a person with regular vision which causes the strain on the eyes, that people experience while reading without glasses (headache, burning eyes, blurred image after some time).

If a myopic person stets the lens for infinty (i.e. focusses on a distant object) the immage remains blurred because we can't focus beyond a certain point which unfortunately is not sufficient for the too long eye ball. Thats why you call it shortsighted: close objects can still be seen in focus while distant ones can't.

If the eye ball is too short the opposite happens.

So what happens if you throw the glasses in the bin and decide to give your eyes some excercise? At first you feel blind becasue you are used to corrected vision and the uncorrected images are impressively bad. After a while you start to get used to be back to bad vision and get the impression of improving vision. Maybe your perception even improves a little over the initial situtation because you (your brain) adapts to the the poor input from the eyes and does all it can to compensate. And our brain is extremely good at dealing with missing or poor data (thats why we don't see our blind spot). If you measure the vision of someone who underwent "eye-training" you find that the vision is just as bad as it was but the person still believes in a miraculous improvement.

Oh and a final personal note: I've been suffering from myopia for a long time now and although I can read without glasses I never do because my eyes get tired of the effort quickly.

Philipp