UVA rays can pass through the cornea and reach the lens and retina. Overexposure has been linked to the development of certain types of cataracts.
UVB rays are partially filtered by the ozone layer but some still reach the eye. They can cause corneal problems, distorted vision and a painful condition called 'snow blindness'.
UVC rays are potentially the most harmful to your eyes and skin but fortunately, the atmosphere's ozone layer blocks virtually all UVC rays.