I think the point is not the size but the resolution ratio of the screen. A 13' inch 4k screen will be much better for your eyes than a 27' inch 1080P screen.

I think the point is not the size but the resolution ratio of the screen. A 13' inch 4k screen will be much better for your eyes than a 27' inch 1080P screen. But no matter how good the screen is, too much screen time will still hurt your eyes.