Excessive eye blinking not only protects the eyes from drying up but also from irritants. The upper eyelid muscle that controls the opening and closing of the eyes when a person blinks, is called the orbicularis oculi and levator palpebrae superioris. The orbicularis oculi muscle enables the eyes to relax when it is closed and the tightening of the levator palpebrae muscle allows the eyes to open. These two muscles allow the eyes to rapidly blink. Depending on what factor causes an individual to have excessive eye blinking, may force muscles in the eyes to fluctuate at different speeds. For example, excessive eye blinking caused by dust is usually characterized by uncontrollable eyelid closure that can last up to a few minutes. The excessive
