It is easier for our eyes to filter out green and red-spectrum light, as they carry less photon energy. However, the higher level of energy in blue light makes the eye unable to do this, which is why it has a more pronounced effect on viewers.Prolonged exposure to blue light – from the sun, screens, displays and LED and fluorescent lamps – is harmful enough to cause eye strain, disrupt sleep patterns, and cause eye damage.
Most people are continuously exposed to bright and blue light sources even late into the night. “Blue wavelengths – which are beneficial during daylight hours because they boost attention, reaction times and mood – seem to be the most disruptive at night.". Blue light inhibits the bodies production of melatonin which induces sleep.
On the visible spectrum, blue light is the closest to invisible UV light with a high proton energy waveform. According to the chart abpve, the blue light emitted by most LED-backlit displays has twice the amount of energy as green light that is displayed.
To counter this most new monitors have a blue light filter which eliminates 70-80% of blue light, make sure its enabled.
Another option is a blue light screen
You can buy blue filter glasses (called blue blockers) these are used by insomnia sufferers
As well as melatonin inhibition, blue light prevents body temperature from dropping during the night. A gradually lowering body temperature is one key element of the body’s progression into sleep. That blue light kept body temperature elevated to daytime levels is a sign of the degree to which nighttime blue light exposure can disrupt normal circadian rhythms. After nights of blue-light exposure, participants were more tired during the day, and experienced more negative moods.
https://www.thesleepdoctor.com/2017/11/06/latest-blue-light-sleep/
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