It is not easy to judge the extent or severity of any eye injury, so you should always get immediate, professional medical attention. It is the best way to safeguard your vision.

Chemical Eye Burns
Chemical eye burns can occur when the eye comes into contact with a solid, liquid, or vaporous chemical.
Eye Trauma
Eye trauma refers to damage caused by a direct blow to the eye. The trauma may affect not only the eye, but the surrounding area, including adjacent tissue and bone structure.
Foreign Objects / Eye Irritants
A foreign object in your eye could be a piece of dust, grit or something larger—and more serious.