The orbicularis oculi muscle is one of the two major components that form the core of the eyelid, the other being the tarsal plate. The orbicularis oculi muscle is composed of skeletal muscle fibers, ...

Researchers have investigated the biochemical and physiological characteristics of orbicularis oculi, a group of facial muscles that control the eyelids and are selectively spared or involved in ...

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 ...

Any of the muscles in the periorbital and facial regions may be targeted with botulinum toxin injection (see Fig. 1 for an anatomic depiction of these muscles). As the toxin acts on the neuromuscular ...

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 ...