Newspaper article The Topeka Capital-Journal

Sunglasses Must Offer Good Protection from Harmful UV Rays

Newspaper article The Topeka Capital-Journal

Sunglasses Must Offer Good Protection from Harmful UV Rays

Article excerpt

Dear Doctor K: During my last eye exam, my eye doctor advised me to buy a pair of "high quality" sunglasses. But she didn't tell me what she meant by high quality. Can you help?

Dear Reader: When you buy sunglasses, it's natural to look for a style that looks good on you and is comfortable. But don't fail to consider the most important detail: the amount of harmful ultraviolet (UV) radiation the lenses screen out. Without proper UV protection, sunglasses can work against you by enabling you to see comfortably in light that is harming your eyes.

You'll want to consider the following:

- The label. Look for 99 percent or 100 percent UV protection, or UV400, which means the lenses absorb wavelengths up to 400 nanometers, thus blocking all harmful UV rays.

- The size. The larger the lenses, the better protection they offer. …

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