Adrenaline increases the "alertness" of the nervous system, meaning it's ready to trigger muscle contraction. It also increases the amount of blood flow and changes the tension of the muscles, which, ...

A blink of an eye seems natural and instantaneous, but is it? Without a functioning eyelid, the eye can become dry, irritated and eventually lose the ability to see clearly. Now, a team of UCLA ...

Most people have experienced it on occasion: those moments when your eyelid suddenly and involuntarily twitches or wiggles for a couple of seconds. They’re typically harmless and the exact cause isn’t ...

What is an upper eyelid blepharoplasty? A blepharoplasty is eyelid surgery, so an upper eyelid blepharoplasty is just that: a surgery that improves the appearance of the upper eyelid. It's generally ...