My eyesight has been in a steady decline for about 10 years (I'm in my early 50's), I'm convinced it's largely due to artificial lighting and the fixed focal distance when viewing computer monitors. My dog ripped a gash through the cornea with his claw in one eye a few years ago which didn't help much either.

I only use glasses if it's absolutely necessary, I have one of Baxters earlier books and everything he said made perfect sense about glasses having a progressive weakening effect. As you stated eyesight is a variable thing which changes under different conditions and sometimes I can read fine print without glasses. Reading under artificial lighting always seems to be the worst for me.

Does the method you will be using rely on eye exercises and pinhole readers etc or do the eye exercises come from the progressively weaker glasses?

The concept seems like weightlifting in a sense, any muscle group responds to progressively making the exercises more challenging over time and focusing is in many ways a muscular response.

A few drops of castor oil in each eye before bed seems to be helping me too.