Yes, you should get your eyes checked for glaucoma, etc. No question.
However, the optometrist will also try and sell you expensive glasses.
As it sounds like your vision has been uncorrected until now then you're just going through presbyopia, even though you may technically have astigmatism or other conditions that would require "proper" reading glasses, if the over-the counter readers work, then absolutely use them. You'll save a fortune.
I made it to 48 before succumbing.