Comment by coldtea

5 hours ago

>Use a clean microfiber cloth. ANYTHING ELSE will scratch your lenses up.

No, it wont. I'm cleaning mine for decades with anything at hand (cotton shirts, napkins, etc) and not a scratch.

And of course there's the little fact that microfiber cloth is a recent synthetic thing. People used cotton and linen squares, or chamois leather ones if they felt fancy, to clean their glasses.