According to this site, you may add AR (Anti-reflective) coatings to
your existing glasses.
"Like polarized lenses, anti-reflective coatings help reduce glare.
However, unlike polarized lenses, anti-reflective coatings (AR) are
coatings that can be put on a lens after it has been made"
This site confirms it: ARC + Anti-reflective coating
"Can you apply a tint to an ARC-coated lens?
No. This will destroy the ARC. In order to change the tint, you need
to decoat the lens of the ARC, tint the lens to the desired color, and
then recoat with ARC."
The final word though, depends on your glasses lenses and their
condition, and whether they have other coatings that may need to be
removed first. The process of adding the coating IS possible, but
dependant on our glasses.
Hope this helpes!
ARC + old lenses
applying anti-reflective coating + existing glasses