I never wore glasses in my life until 2021, and have always had 20/20 or better vision (for the most part). Had my eyes checked in January and they said I don’t need to wear glasses, but if I wanted to the prescription is -0.25 SPH, and -0.75 CYL in the left eye and -0.50 CYL in the right. I had some glasses made up to that specification and it seems to be grossly over-corrected.
I have found that I can see better than 20/20 with no SPH correction and -0.25 CYL in each eye. I’m only wearing the glasses outdoors for fun or driving.
I’m sure the astigmatism in my case is coming from my bad laptop computer placement during lockdown. I’m doing a bunch of things to try to improve that.
The image difference for me can be very noticeable with the -0.25 CYL vs naked when the astigmatism is acting up. Text at distance looks more like a “captcha” without the astigmatism correction, streetlights can look frosted instead of clear, and a lot of things are perfectly readable but “ugly” without the astigmatism correction.
So if I were you and you have a cheap source of eyewear, I would try putting in maybe a minimal amount of astigmatism correction and seeing if it makes your life better. For me a quarter diopter works just as well as three-quarter diopters. (Better actually because the stronger correction gives me nausea when I turn my head.)
If I look out the window at the kids playing in the park with the -0.25 CYL correction vs without, it looks like looking out a dirty window vs a clean one, if that helps any.
Today I did all my crazy anti-eyestrain stuff and made a real effort with avoiding bad habits on the computer, and I could barely see the difference between my minimal astigmatism glasses and naked. For me, at least, the astigmatism is pretty much not there in the morning, and only shows up with tired eyes.