Our eyes have built-in defenses against a variety of threats.
The eyelids, eyelashes, and blink reflex work as a physical barrier and the iris has the ability to react to intense visible light. The brow and forehead, which extend beyond the eye, as well as the bone cavity holding the eyeball itself, offer additional protection, especially in young children. Injuries range from eye strain to severe trauma that can cause permanent damage, vision loss, & blindness.
The eyes natural systems alone are insufficient to prevent many injuries. Through studies of the different types of eye injuries that have happened, a foundation has been laid for our understanding of why and when they occur as well as how to prevent them.
(Source www.creativesafetysupply.com)