What can cause corneal injury?
Knives, pencils and other sharp objects can cause severe injury to the cornea. Fireworks, exploding batteries and toxic chemicals, especially alkalis, can also result in severe scarring of the cornea. In fact, protection of the cornea is the reason emergency washing of the eye is absolutely necessary when the eye is exposed to toxic chemicals. Most corneal injuries are preventable with protective glasses and proper precautions when dealing with hazardous substances.
