[...It requires time for one's sight to become imperfect. The habit of
staring or straining cannot be accomplished in a second. it takes a
longer time to fail than it does to succeed. Perfect sight can only be
obtained quickly without effort or strain. The cure of imperfect
sight, then, is to stop all effort. It is not accomplished by doing
things. It can only come by the things that one stops doing...]

- Dr. W.H. Bates, March 1927