Protecting your eyes with UV-blocking sunglass lenses is the single most important step you can take to prevent cataracts. Several studies have shown that people who live at high altitudes (where more UV light reaches the eyes) and who spend a lot of time in the sun develop cataracts earlier than others. Foremost among these studies is the Chesapeake Bay Waterman study, in which the eyes of men harvesting oysters from boats were compared with those of men who shucked oysters in the shade. As expected, the eyes of the boatmen developed cataracts earlier than the shuckers’ eyes. The recommendation is to wear sunglasses that block UV rays and to wear a wide-brimmed hat whenever going outside. Because UV rays reflect off the surface of water and other objects to indirectly reach the eyes, even the shade of an umbrella or a tree does not offer enough protection. The sun can damage your eyes just like it can damage your skin. Whether you’re walking outdoors, driving, or attending an outdoor event, protect your eyes by wearing glasses with UV ray protection.