Light Adaptive, Photochromic, or Transition lenses offer clear lenses whilst indoors but darken on exposure to sun (UV) light, making them a great alternative to having a pair of normal clear glasses and a pair of sunglasses. They filter out 100% of harmful UVA and UVB radiation whether activated or not.
For further information about this technology and to find out what lenses we offer, please see our guide here.