Blepharospasm Essential

**Blepharospasm** is involuntary and uncontrollable contraction of the eyelid muscles. The cause of the disease is unknown, which is why it is called **essential**. The name *"blapharopasma" is not Latin and comes from the Greek words "tiny" and "spasm", as a small spasm of a small muscle.*

During such a spasm, a person feels strong tension in the eye area, and a sensation of a foreign body appears in the eye. There are no other symptoms of blepharospasm. However, this spasm may also not be isolated and occur regularly. This can lead to additional complaints and a deterioration in the patient’s well-being. So-called *eyelid spasms* may occur, when the patient notices frequent contractions of the upper and lower eyelids, which are not accompanied by lacrimation, swelling and redness of the eyes. In this case, there is a possible **hereditary link in the development of blepharopspasm,** however, there is also a lot of unknown here. There is evidence that the disease manifests itself not only in children, but also in