Healthy Eyes and Relaxation

Many don't know that their eyes are getting weak due to eye muscles stress, strain, tight, and contraction, much more mental stress. Our eyes need to relax that would help our vision healthy like a child.  Relaxation here  does not limit eye muscles relaxation above all a mind relaxation. "If you want to have perfect vision, therefore, you must minimize stress in your mind. Mental strain of any kind always produces conscious or unconscious eyestrain and if the strain takes the form of an effort to see, an error of refraction is always produced." http://products.mercola.com/vision-program