I'd say this is why we need software to respect accessibility and configurability. We didn't need "Dark Mode" in Windows 95 because we could configure the crap out of our native widgets. Then using the web as an application platform became a thing, accessibility was jettisoned in the name of "muh design!" and all personal computing has suffered for it.
I'm the same way... 42 now and my eyes aren't the same. Definitely macular degeneration. Dark mode really helps me.
Second this. Aged. Dark mode and command prompt is less tiresome on eye than white.
Much of it depends on the room you’re in currently.