What should you look for in a pair of sunglasses? Three important qualities: good eye protection, comfort and a fantastic style.
Put UV protection on your must-have listYour sunglasses must provide protection from ultraviolet radiation, a component of sunlight that contributes to eye disease. The FDA, the government agency that oversees sunglasses manufacture and sales in the U.S., recommends you look for sunglasses with lenses that block 99-100% of UVA and UVB radiation. The label should read either UV 400 or 100% UV protection.
Choose a sunglasses lens materialsSunglasses lens materials differ quite a bit. Some are heavier than others and some types are more durable. Three materials are commonly used for sunglasses lenses:
- Polycarbonate, a durable lightweight plastic.
- CR-39, a plastic used mostly in prescription-grade lenses.
- Glass, durable but much heavier to wear.
Sunglasses lens tints and other coatingsUV filtering is one coating that's applied to sunglasses lenses, but there are many others:
Sunglasses Lens Tints
Colors are applied to sunglasses lenses to help absorb light as it passes through them. The color you choose is a matter of personal taste, but there are a few important color-related benefits to consider.
- Gray lens tints reduce brightness, but do not distort color.
- Brown and amber tints reduce glare, including the glare created by the blue frequency in sunlight, which can make things appear hazy. Brown and amber tints distort colors more than gray tints.
- Yellow lens tints reduce the haze from blue light better than brown lenses, so they really sharpen up the view, but they cause more color distortion.
- Green tinted lenses reduce glare and help filter out some of the blue light. They provide good contrast between objects.
- Rose colored lenses might be a good choice if you participate in water sports or other outdoor activities, because they provide good contrast for objects viewed against blue or green backgrounds.
Should you buy sunglasses with polarized lenses?
Polarizing films applied to lenses help reduce the glare created when light bounces off of some objects, such as water, highways and other similar surfaces. I prefer polarized lenses, but it's a personal choice.
Watch for sunglasses with scratch resistant lenses
A thin coating can be applied to lenses to make them more resistant to scratches. Keep in mind that plastic lenses scratch more easily than glass lenses.
Sunglasses with mirrored lenses
You've seen sunglasses with a mirror finish on the outside of the lenses. They're popular, but mirrored lenses scratch easily because the mirror finish is applied last.
Sunglasses with photochromatic lenses
Photochromatic (or photochromic) lenses become darker when exposed to UV radiation. The shift happens quickly as your surroundings change from bright to dim.
Buying sunglasses with anti-reflective coatings
Anti-reflective coatings reduce the reflection caused by light that hits the back side of lenses, keeping it from bouncing into your eyes.
Frame componentsSunglasses frames are made from plastic, base metals, titanium, aluminum and many other materials. Try on lots of frame types to compare their weight and to find out which ones feel the best.
Children need sunglasses, tooChildren need protection from UV radiation and glare, so take care when buying sunglasses for them. Forget about those flimsy little play sunglasses -- get them something that will protect their eyes.
Sunglasses with extra eye protection
- Sunglasses with lenses that wrap around to your temples keep out more light and UV radiation than typical lenses.
- Toss on a wide brimmed hat for more protection from the sun. It'll help keep your skin healthy and younger looking, too.
- Experts tell us that less squinting equals fewer wrinkles. Protect those eyes now!
Choose sunglasses that suit your styleStyles of sunglasses change every year, just like every other fashion, but the selections are so varied that no pair will ever really go "out" of style. And since sunglasses don't have to be expensive to be effective, you don't have to spend a fortune to develop a nice collection.
Designer and specialty sunglasses, like the kinds used for sports, cost more than most sunglasses, but you'll find all kinds of fashion glasses for sale at affordable prices. Watch the UV ratings carefully and you'll be fine.
Unless you already know which frame shapes you like best, go shopping and try on as many styles as possible. If you can get permission to walk outside with glasses on, do it, so that you can find out how they actually work in the sunlight.