Or course sun'rays are damaging, and it is why sunglasses exist. But if you are in front of a computer screen for 7/8 hours a day, you are exposed to blue LEDs

Or course sun'rays are damaging, and it is why sunglasses exist. But if you are in front of a computer screen for 7/8 hours a day, you are exposed to blue LEDs which, unlike green and red LEDs are also damging for the eyes.