I'm must say, i felt more relaxed in mind and body but no improvement on vision. I'm starting to think on you said JMartinC4,i'm starting believe there's something of disorder in my mind which reflects on my eyes. I think is beacuse of this that i'm always spaced out and see double images. My mind is distorted.
Let's work on that.
Your mind is not distorted. It is certainly clear enough to post on this website - and making a lot of sense in English (rather than say Portuguese?).
Think "mis-aligned" instead of distorted.
You need to work on getting all the big components of vision pointed in the same direction, at the same time, at the same distance.
Mind. Right Eye. Left Eye. Head. Body.
Then a slight shifting of face/eyes may direct/focus some light from the object or area you're actually pointed at onto the foveas - and a flash of clear eyesight will occur.
And it's probably not going to be a 'straight ahead' alignment at first! Since each component is probably pointed at a slightly different direction and into a slightly different distance, seeing clearly straight ahead is probably near impossible.
I believe the feeling of 'relaxation' comes simultaneously with the realignment, and people confuse the experience thinking "Oh - if I get the relaxation first, then the clear vision (from the realignment) will come!". I'm not so sure.