Blepharospasm is a focal cranial dystonia characterized by increased blinking and involuntary eyelid closure. Dystonia is a movement disorder that causes the muscles to contract and spasm involuntarily.
Typically, this is due to spasm of the orbicularis oculi muscles. Involuntary closure of the eyelids can also be caused by the failure of levator contraction, a condition known as apraxia of lid opening or motor persistence of the orbicularis oculi muscles.

Modern medical literature states Blepharospasm as a neuropathologic disorder, rather than psychopathologic. But to my personal experience, psychology is the causative and maintaining cause.
Patients with BEB may have a sensory trick, such as touching the face, which improves their eyelid spasms.

Neuroimaging studies support the general concept that there is pathology in the basal ganglia and its circuitry.
Hemifacial spasm is also observed in many patients of Benign Essential Blepharospasm (BEB). This is characterized by synchronous spasms/contractions of one side of the face. The spasms are usually very brief, but can occur in runs and are occasionally tonic. The disorder typically begins around the eye, which is often the most symptomatic aspect of the disease.

Modern medical literature states Blepharospasm as a neuropathologic disorder, rather than psychopathologic. But to my personal experience, psychology is the causative and maintaining cause.
Patients with BEB may have a sensory trick, such as touching the face, which improves their eyelid spasms.
Neuroimaging studies support the general concept that there is pathology in the basal ganglia and its circuitry.
Hemifacial spasm is also observed in many patients of Benign Essential Blepharospasm (BEB). This is characterized by synchronous spasms/contractions of one side of the face. The spasms are usually very brief, but can occur in runs and are occasionally tonic. The disorder typically begins around the eye, which is often the most symptomatic aspect of the disease.
Regarding treatment, a BOTOX injection is prescribed, which is not affordable by many. It has many side effects and equally not a cure but just management for a few months.

We have treated many of Blepharospasm with great success .

Blepharospasm Case from Shahjahanpur

https://youtu.be/DjnwhFEz6p8