so in a way polarized lenses is bad cause it strains ur
eyes?
I'm not too sure about that...
But you saw those wierd looking opaque plastic spectacles?
Supposedly it helps train your eyes out of myopia by reducing the
light.
Plus formal studies have shown no link between straining your
eyes and that being bad for your eyes if I'm not mistaken. In other
words, it is also safe to read your book in the dark.