psst
hey you, with the eyes đź‘€
stop being stubborn and increase your computer's default font size. magnify that web page you're reading a bit
maybe try a different display font, most things default to sans fonts these days but I personally find serifs much easier to read, especially at, ahem, bigger font sizes
also, if light mode hurts your eyes, there's a significant chance the problem is that you bought a new monitor that gets 10x brighter than your old monitor and you turned it up to 100% brightness out of habit


