Without glasses not only it is hard to read, but becomes tiring after a while. My last prescription gave me an additional 6 months of dark mode, but that was it.
There was this stupid moment in history when every site suddenly went full dark mode because the iPhone finally got an OLED panel, accessibility be damned.
Offering only one color scheme, light or dark, is not accessible. Light sensitivity is just as real as astigmatism.
Screens emit less intensive light than ambient on a cloudy day. The teacher in question couldn't even go outside without his glasses.
Yep. The term for this is 'dayblind'. My sister has a friend whose light sensitivity is so severe that she can't even look up at night when there's a full moon over clear skies.
I don't know if she has any sunglasses with prescription tint, but she does often wear multiple pairs of sunglasses at once (stacking fitovers of various sizes). She also wears sunglasses whenever she uses the computer.
I forget what condition my sister's friend has, but she's legally blind. Extreme light sensitivity is often a feature of retinal diseases that also cause other visual acuity problems.