It is invisible, penetrating and pervasive. It poses considerable danger to human eyes and skin. Yet, most people are unaware of the serious vision problems that can be caused by exposure of the sun’s unseen rays. Ultraviolet (UV) exposure has risen in recent decades as the Earth’s protective ozone layer has been depleted. The damage can occur at any age, but there’s often a cumulative punch in later years. Many people make the connection between skin cancer and sun exposure but very few people understand the potential hazard to the eye.