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 ...

Severe cases of blepharospasm resistant to botulinum toxin represent a challenging clinical problem. Over the last 10 years, we have adopted a staged surgical management of these cases with an initial ...

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. The researchers studied ...

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 ...

CORONADO, California — Patients with blepharospasm can wait more than 2 years to receive a correct diagnosis, according to a new survey. "There's no excuse," said researcher Kristen Dunbar, MD, a ...

Myokymia is a manifestation of peripheral nerve disease and classified as excess motor unit activity. Electrophysiologically, it consists of rhythymic or semirhythymic bursts of grouped motor unit ...

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 ...