The better the lenses wrap around your eyes, the more they prevent radiation from spilling in around the sides. Tints that are gray, green or brown are ideal for blocking out visible light. Make sure the glass is matched in color and undistorted, because imperfections can confuse your pupils and leave your eyes unsafely exposed. And since UV damage is cumulative, you should be wearing sunglasses anytime you’re in the sun. For more information on UV radiation and buying glasses, go to the American Optometric Association Web site.
—Noelle Chun
