Runners with Glasses: What do you do?

I wear glasses and have pretty poor vision overall. My vision is not bad enough to be a safety issue for running, I can see the moving blobs that are cars far enough away that it is fine for the few times I need to cross the road and I can generally see people within 200 feet unless they are wearing something that blends in really well.

I generally leave my glasses at home when I run, but I have gone out with them a few times and they stay on my face better than I expected and I am considering wearing them more on my long runs, especially as the beautiful fall colors come out.

What do you do?

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Edit: for anyone that comes back to look, I went on my morning run with my glasses this morning. It was pretty good, and it actually forced me to keep better form because my glasses would slip down if I let my head drop. Thank you all for you input.