Blue light may damage ones retinas. That’s called phototoxicity. The amount of damage depends on wavelength and exposure time. A filter that cuts 95% of blue light has been shown to lessen damage, hence the necessity of anti-blue light glasses
The anti-blue light optical lens has the function of preventing harmful blue light and ultraviolet rays from hurting the human eye when exposed to emitters like the sun, and screen of digital gadgets; it also has the functions of anti-oil pollution and autonomous optical control.
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