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Abstract In recent years, people have become increasingly attentive to light pollution influences on their eyes. In the visible spectrum, short-wave blue light with wavelength between 415 nm and 455 nm is closely related to eye light damage. This high energy blue light passes through the cornea and lens to the retina causing diseases such as dry eye, cataract, age-related macular degeneration, even stimulating the brain, inhibiting melatonin secretion, and enhancing adrenocortical hormone production, which will destroy the hormonal balance and directly affect sleep quality. Therefore, the effect of Blu-rays on ocular is becoming an important concern for the future. We describe blue light's effects on eye tissues, summarize the research on eye injury and its physical prevention and medical treatment.

also: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6288536/

> Abstract >In recent years, people have become increasingly attentive to light pollution influences on their eyes. In the visible spectrum, short-wave blue light with wavelength between 415 nm and 455 nm is closely related to eye light damage. This high energy blue light passes through the cornea and lens to the retina causing diseases such as dry eye, cataract, age-related macular degeneration, even stimulating the brain, inhibiting melatonin secretion, and enhancing adrenocortical hormone production, which will destroy the hormonal balance and directly affect sleep quality. Therefore, the effect of Blu-rays on ocular is becoming an important concern for the future. We describe blue light's effects on eye tissues, summarize the research on eye injury and its physical prevention and medical treatment. also: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6288536/

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[–] • 2 pts

Why hasn't the Sun been causing "eye light damage" since forever then? The Sun puts out more blue light than a million devices combined. At best they are correct about the affect of blue light on sleep patterns. It's a natural thing. The sun gives off less blue light during dawn and dusk. So blasting your eyes with blue light (device screen) in a dark room at night is obviously going to negatively affect your eyes and sleep pattern. Good job scientists, you are clearly masters of the fucking obvious...

[–] • 0 pt

and enhancing adrenocortical hormone production, which will destroy the hormonal balance and directly affect sleep quality.

I thought that was the most important - what else can be done via light alteration on these screens and what can it affect?

[–] • 0 pt

The biggest thing you can do is not use them... But obviously that isn't a real solution. Definitely don't use them in low light situations and don't use them anywhere near bedtime.

My suspicion is that it really has nothing to do with the actual light frequencies, but rather it's the refresh rate that causes problems... Just because our eyes can't see it doesn't mean our brain doesn't.

[–] • 0 pt

It has. My mom didn't really need glasses until she was older (she has a very mild astigmatism and didn't bother with glasses until she was on her 50s) and has spent a ton of time outside. She had cataracts that had to be removed from the damage from the sun. My great grandmother who didn't look at a screen (she refused to own a TV) had severe macular degeneration before she died.

I have had glasses with uv protection and eventually 'blue light blocking' since I was 10. At my age there should be signs of both cataracts and macular degeneration but my eye doc sees none of it. I've been working on computers full time since I was 14 and because I get sun poisoning go out rarely and completely covered I haven't had a lot of sun exposure.

I don't know how bad the blue light really is but the sun does cause a lot of damage.

[–] • 1 pt

I have f.lux on my laptop to adjust out the blue light at night