How big of a deal really is UV radiation on our eyes? Well, exposure to UV radiation is a known factor causing cataracts, growths on the eye, cancer, and possibly macular degeneration, so it IS a big deal how we care for our precious sight. So how do we protect?

There are three types of ultraviolet radiation. UVC rays are the highest-energy rays and have the potential to do the most harm; fortunately, the ozone layer blocks all UVC rays from our sight. UVB rays have less energy than UVC and are partially filtered by the ozone layer, but some still reach the surface. These rays stimulate the production of melanin, a skin pigment that makes us tan, but in high amounts puts us at risk for skin cancer. UVA rays are the lowest energy, but they can pass straight through the cornea and into the lens and retina of the eye, making it quite dangerous in high amounts.

It’s not only in the sunshine that we need to worry about these rays.  They penetrate through cloud cover and are potent even in winter months. Also, the exposure risks are cumulative, so they become worse the more sun exposure we get. This means we should be protecting from a young age, so cover up your kiddies.

The best way to protect? A good pair of protective sunglasses. Not all shades are created equal, though. If you can’t see on the label that they are blocking 99-100% of both UVA and UVB rays, they aren’t good enough for the job. Just because the lenses are dark doesn’t mean you’re protected, the color and darkness are unrelated to UV protection. If you are spending a lot of time outdoors, it may be worth it to invest in a wraparound pair to protect from UV rays in your periphery.

Look for sunglasses with these advantages:

  • Block 99 to 100 percent of both UVA and UVB rays
  • Screen out 75 to 90 percent of visible light
  • Have lenses that are perfectly matched in color and free of distortions and imperfections
  • Have lenses that are gray for proper color recognition

So, do yourself a favor this summer and opt for the shades and the wide-brimmed hats. And, why not? They’re fashionable accessories to sport, especially if you’re going for a glamour chic look. And, after all, the less we squint, the less ingrained the crow’s feet. But, mostly, remember to protect your eye health.