Protect your eyes, photochromic lenses are lenses that darken on exposure to UV radiation. Once the UV is decreased (for eg: under a tree) , these lenses will gradually become clear again. The lenses also function to absorb ambient light
Nov 13, 2009
Protect your eyes, colour changing spectacles - photochromic lenses
Protect your eyes, photochromic lenses are lenses that darken on exposure to UV radiation. Once the UV is decreased (for eg: under a tree) , these lenses will gradually become clear again. The lenses also function to absorb ambient light
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