If you have ever felt frustrated at needing both prescription glasses and prescription sunglasses to accommodate an outdoor lifestyle, you should consider photochromic (also called Transitions) lenses. Photochromic lenses darken when exposed to UV rays, when the wearer goes outside when it's bright, the lenses darken automatically. When the wearer goes back inside, the glasses become clear. Transitions® Light Intelligent Lenses™ automatically adapt to changing light conditions to help to reduce glare, eye fatigue and strain – for effortless and relaxed vision in every situation. Transitions offer a choice of products tailored to your eyecare needs and are available in a wide range of stylish lens colors so you can express your own personal style. Empower yourself to take control of your light & enjoy always-on protection anytime, anywhere – indoors and out!