The corneal reflex, also known as the blink reflex, is an involuntary reflex that protects the eyes from foreign objects and other irritants. It is a crucial part of the body’s defense mechanisms, helping to keep the eyes healthy and functioning correctly.
When an object approaches the eye, the cornea (the clear outer layer of the eye) sends a signal to the brain through the trigeminal nerve. The brain then sends a signal back to the eyelid muscles, causing them to blink and close the eye. This reflex is essential for protecting the eyes from damage, as it helps to remove irritants and prevent them from entering the eye.