What are Photochromic Lenses?
Photochromic lenses are special eyeglass lenses that change from clear to dark
when exposed to ultraviolet (UV) rays. Since invisible UV rays are present in
sunlight, photochromic lenses automatically get darker outdoors while protecting
the eyes at the same time from the harmful effects of UV.
Remove the exposure to UV rays, and photochromic lenses
return to their clear state. Since photochromic lenses are clear indoors and get
darker outdoors automatically, they are popular all-purpose lenses available in
a wide range of styles and prescriptions.
Photochromic lenses can be enhanced even further with
popular additional treatments like anti-reflective (AR) coatings for cutting
glare, scratch-resistance for protection, and built-in UV protection to ward
against the harmful effects of UV rays.
For in-depth information on photochromics in general, and
on Transitions® lenses, the world’s leading supplier of photochromic lenses,
visit the Your Eyeglasses section of the
EyeGlass Guide.