Some people may have a fair idea of how harmful ultraviolet (UV) radiation exposure is to the skin. However, not everyone knows that UV radiation poses a threat to eyesight as well. Thus, donning a pair of sunglasses is essential every time one heads outdoors, especially during summer days when the sun is at its brightest and warmest.
Unfortunately, some people focus too much on how they look when choosing a pair of shades. They mainly regard sunglasses as mere fashion accessories, especially with the wide variety of sunglass styles today in both generic and designer brands, which some stores offer at discounted prices. When buying sunglasses, the first question a buyer should ask is, “Does it offer me optimum protection from harmful UV radiation?”
According to the American Optometric Association (AOA), an ideal pair of sunglasses is one that blocks out 99 to 100 percent of UV-A and UV-B radiation. The group also suggests that buyers look for sunglasses that screen out 75 to 90 percent of visible light. While today’s lenses come in a wide selection of colors, AOA advises buyers to look for lens tints that don’t distort their color recognition.
Gray lenses are the most ideal lens color because they barely have any effect on how people perceive hues. Meanwhile, green-tinted lenses successfully reduce glare. Of all colors, though, yellow is the least recommended because it affects one’s proper recognition of color.