If you have ever felt frustrated at needing both prescription glasses and prescription sunglasses to accommodate an outdoor lifestyle, you should consider photochromic lenses. Photochromic lenses darken when exposed to UV rays. The change is caused by photochromic molecules that are incorporated into the lens or into a coating on the lens. When the wearer goes outside when it's bright, the lenses darken automatically. When the wearer goes back inside, the glasses become clear. You can even choose the color of the tint. Ask your doctor what options are available.
