Myths about Photochromic lens.
“ Glasses to turn into sunglasses outside?” If that is the best way to explain Photo-Color lenses, it will definitely doing it wrong.
There are countless benefits of Photo-Color lenses. It is highly innovative auto-adjusting lenses that protect the eyes from exposure to light associated with photophobia, migraines, and squinting. Lenses also help block UV light and Harmful Blue Radiation Light from screens and devices.
Lenses darken and change color because of layered of carbon-based molecules that are response to surrounding changes in light. When the lenses are exposed to UV light, the bonds between molecules adjust and change to darken the lens.
BUT, molecules responsible for color change within the lens are influenced by temperature too.
In warmer temperatures (about 28°C), the molecules are less kinetically active and the process to fully darken can be slower.
Therefore, This is worth to explain glasses in hot cars or are wearing them in warmer climates. The lenses won’t have the same darkening speed as when they go from cold air or air conditioning directly into the sun.
