There is no shortage of information about ultraviolet rays (UV) and how prolonged, unprotected exposure to UV can lead to skin damage. It’s why we wear sunscreen when we’re in the sun for extended periods of time. Sunscreens offer various degrees of UV protection by filtering out or “blocking” the harmful, invisible UVA and UVB wavelengths of light.
Eye exposure to ultraviolet rays can cause damage your eyes. Over time, UV can contribute to serious age-related eye conditions or diseases. That’s why wearing lenses with maximum UV protection is so very important. Because UV rays are always present outdoors—on sunny days, cloudy days and every day in between.
Unlike sunscreen that you apply and reapply, eyeglass lenses and sunglasses can have ultraviolet protection built into the lens, or applied as a lens treatment. Remember, although UV is invisible to the human eye, it is always present. Your lenses, therefore, should always provide UV protection.
The most important thing you need to know about UV glasses is this: Be certain your eyewear provides near or exactly 100% UV protection against both UVA and UVB rays. Anything less is less than ideal for the short and long-term protection of your healthy sight.