What is blue light?

8 hazards of blue light

1)  Cause the damage of retinal pigment epithelial cells:

2)  visual fatigue: due to the short wavelength of blue light, the focus point does not fall in the center of the retina, but a position closer to the front of the retina.

3) The blue light cause sleep disorder

4)  Causing glare

5)  Since short-wavelength light has a relatively high energy, the incidence of fine particles in the air is high, which is the main cause of glare.

6)  Visual fatigue

7)  The blurring of vision.

8)  Blu-ray is the main cause of digital visual fatigue (DEF).

Do we really need blue light blocking glasses?

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