Is it possible that your eye balls get sun burned?

Corneas: The cornea, the window at the front of the eye, is coated with an epithelium with the same biochemical characteristics as skin. It can respond to uv radiation like sunlight and welding light with a typical sunburn. This is a dramatic and painful event but usually short lived (4-8 hours) until healing. So yes, your eyeballs can get sunburned.