[kfarr]

From another comment summarizing contents it seems this research focuses on danger of permanent damage. Just because there isn't permanent damage from blue screen light doesn't mean that it can't also be more comfortable to you and promote healthy sleep to filter it out

[didibus]

I wonder if it's a way to decrease brightness while maintaining better visibility.

[BitAstronaut]

Not really what you were asking but I thought I'd throw it out there anyway.

On an iPhone, Settings > Accessibility > Display & Text Size > Color Filter > Select Color Tint > Select Deep Red > Intensity 100% & Hue 100%.

Go back to Accessibility and select Accessibility Shortcut > Select Color Filters.

When I'm reading in bed, I triple press the right button and it turns my red filter on. I've noticed a significant decrease in eye strain and I find it doesn't keep me up at night.

I know that is counter to this post, but it works for me so might be worth a try.

[tailspin2019]

Great tip.

I’ve just done this and it’s perfect for nighttime HN reading!