I make the screen as dim as possible without being straining / hard to read. I also have "night mode" (reduces blue light) set to very high. This is all very a

I make the screen as dim as possible without being straining / hard to read. I also have "night mode" (reduces blue light) set to very high. This is all very anecdotal and I think much of eyesight is caused by genetics. But my eyesight is pretty good and hasn't deteriorated much in the past few years. My optometrist also said using a dim screen is good although idk why.