[OWNDAYS] Introducing photochromic lenses that change color depending on the amount of UV rays!

Photochromic lenses are lenses that change color in response to the amount of UV rays.
The key point is that they can be used as both glasses and sunglasses; the lens color darkens outdoors when UV rays are strong, and changes to a nearly clear color indoors when UV rays are weak.
Highly recommended for those who find it difficult to put on and take off glasses and sunglasses when traveling or outdoors!
Regarding color change, it takes a little longer to lighten than it does to darken.
In addition, the color intensity changes not only depending on the brightness of the weather but also on the amount of UV rays, so the color of the lenses will change even on cloudy days.
Be sure to try it out at the store!

■ OWNDAYS Official Website (Photochromic Lenses)
ttp://www.owndays.com/jp/ja/services/lens/transitions