Transition lenses sense the surrounding UV rays and light input and automatically change the color of the lenses darker and ...

On the other hand, sunglasses are also available in styles like wrapped and oversized, plus a ton of different lens colors. Convenience: Transition lenses are more convenient than prescription ...

Photochromic or transition lenses that darken outdoors are useful if you're sensitive to sunlight. They block 100 per cent of the sun's ultraviolet rays, so you don't need prescription sunglasses.