In view of the eye vision healthy part, the harmful light contains the ultraviolet ray, the blue light.
The ultraviolet ray is the invisible murderer who will make eye disease and the eye getting older.
Besides the ultraviolet ray, the blue light has a bigger lethality to our eye.
The blue light will induce the retina disease.  If serious, it will make someone to get blind.
Anti-blue light lenses not only offer you 100% protection against UV light but also filter the harmful blue light to protect your eye’s health.