Subject: No discussion about prevention of nearsightedness – would be complete without evaluating the objective success of Dr. Bates.
Starting point: Read Dr. Bates original work, here:
Bates did is study – before there was any real “hard science” to support his idea. But this much is correct:
MYOPIA PREVENTION BY TEACHERS.
By W. H. BATES, M.D.,
“Myopia with elongation of the eyeball is incurable. It is usually acquired during school life. Acute myopia, spasm of the accommodation, or functional myopia is an early stage of incurable myopia. “
He was correct in the idea that prevention must start – before you begin wearing a minus lens (the presumed solution). The implication is that the minus lens, “prescribed” to solve the problem, is creating “eye-elongation”, is making the problem incurable.
Some people prefer using exclusively “Bates” as a method to clear their Snellen back to normal. Others will use a “mix” of methods – with the “core” method being the use of a plus for all close work.