They address this in the post: >Many people perceive light mode as the cause of eye strain. But blue light, among other things, is actually the cause of it mos

They address this in the post: >Many people perceive light mode as the cause of eye strain. But blue light, among other things, is actually the cause of it most of the time. This is covered in more detail by Vice, where they say: >>A 2018 study published in BMJ Open Ophthalmology notes that blue light could be a factor in eye tiredness, but cites dry eyes from not blinking for long periods as a more serious cause of eye strain, as well as too-small fonts, and conditions like uncorrected astigmatism. It may be that when you use dark mode, because of the lack of blue light you feel better. But perhaps you can test this by installing something like [Flux](https://justgetflux.com/ https://justgetflux.com/) to see if that also helps.