The risk of damage to the eyes from UV light has increased due to ozone depletion in the atmosphere.
Your eyes can become irritated if not protected. You may also put yourself at increased risk of premature ageing of the eyes and other diseases such as cataracts and skin cancer on the eyelids. Our eyes are exposed to UV every day, whatever the conditions. Up to 40% of UV exposure occurs outside of direct sunlight, and it comes from reflections off buildings, glass, water, the sky, the ground, and even off the back of the surface of your lens if they are not treated with UV protection.
Solution - Wearing lenses with UV protection helps shield your eyes from ultra-violet radiation. Apart from sunglasses, you can also opt for clear lenses which also protect against UV. Some lenses offer a higher level of protection than others. Significant UV exposure for spectacle wearers comes from the rear lens surface. Look for a lens with a high Eye-Sun Protection Factor (ESPF) which protects from both the front and rear surface of the lens.