Johns Hopkins Health - How a Johns Hopkins Expert Chooses Sunglasses
Issue No. 25
How a Johns Hopkins Expert Chooses SunglassesDate: July 8, 2014
I see the ill effects of ultraviolet radiation on my patients’ eyes every day: cataracts, macular degeneration, pterygium (or surfer’s eye, an abnormal growth on the white of the eye) and photokeratitis (sunburned eyes).
I tell my patients to protect their eyes using sunglasses, and I make sure to wear them, too. The one thing I look for is that they’re 99 to 100 percent UVA and UVB absorbing.
If I’m active, like playing sports, I look for unbreakable polycarbonate or Trivex lenses. If I’m in a car or on a boat where the sun reflects off the surface, polarized lenses are best. They eliminate reflected rays.
When I’m simply looking for something to wear at the beach on a sunny day, I get myself a pair of cheap sunglasses. For maximum protection, I get ones that are wraparound, 99 to 100 percent UV absorbing, in a gray tint.
Jack Prince, O.D., is a doctor of optometry and a clinical associate at the Johns Hopkins Wilmer Eye Institute. He specializes in routine comprehensive eye care for children and adults.