A wide variety of studies were conducted over the last 10 years to more carefully determine the exposure to ultraviolet (UV) radiation in the natural environment, which are especially concerned with the UV exposure to the eye. Careful measurements of global UV radiation and personal exposure were performed. A mannequin head model was developed that monitors the UV radiation to different locations on the face including at the eye. The effectiveness of hat and glasses and/or sunglasses was studied. Furthermore, models of estimating UV exposure were tested in field trials with schoolchildren, and the results were applied to the participants of epidemiological studies. In this article, these studies are briefly reviewed.