I use Rx sunglasses myself. Nothing fancy; just a basic pair of frames with the darkest lenses I could get. They work well enough for me, although I do need to carry a clear pair in a glasses case with me for when I get off the bike and go indoors.
And I’ve been wearing glasses since I was in 4th grade, got into serious cycling in 1972 when I graduated HS, tried using just about every version of clip-ons known to man, and finally got myself Rx sunglasses in the late 1980s … and I could kick my own butt up to the corner and around the bend for having waited that long to do it.
Seriously, if you’re already wearing glasses, Rx sunglasses are the only way to go.
-“BB”-