They include:
A. WHITE LENSES: these lenses have no reaction whatsoever to uv rays. And They offer minimal protection
to radiations..
B. PHOTOCHROMIC LENSES: These lenses become shaded on exposure to UV rays. They transit back
again to their white inactive nature when they are withdrawn from the light source. They also reduce
the intensity of light that goes into the eyes of the user.
C. BLUE CUT LENSES: The types of lenses help block out harmful blue light from the sun, and digital
devices. In addition to the above property, it also possesses all the characteristics of photochromic
lenses.
