Eye twitching is defined as as an abnormal involuntary blinking or spasm of the eyelids.
Technically eye twitching or eye spasm is known as Blepharospasm. It is also known as Benign essential blepharospasm and hemifacial spasm. Some eye doctors often call it as blinking disorder.
Blinking disorders may not be serious problem, but sometimes patients suffering from neurological problems such as Tourette's Syndrome may experience sever uncontrollable blinking that require medical attention.
Blinking frequencies varies patient to patients, day to day and sleep to waking. It may also vary due to brighter sunlight, due to over exercise and tiredness.
There are various causes of eye twitching, scientifically it is associated with an abnormal function of the "basal ganglion" from an unknown cause. The basal ganglion is the part of the brain responsible for controlling the muscles. The other common causes for eye twitching include:
- Lack of sleep
- Corneal irritation or injury
- Prolonged staring or eye strain
- Smoking * Ingestion of alcohol and caffeine
- Neurological disorders
Heredity also may be a cause for eye twitching, some believes that it runs within families.
Presently there is no specified successful treatment that can cure eye twitching. Researchers are consistently working on new ways to treat problems like eye twitching.
The injection of Botox into the muscles of the eyelids is an approved treatment in United States and also in Canada. Botox, produced by the bacterium Clostridium botulinum, paralyzes the muscles of the eyelids.
Oral medications may produce some short time relieve but very unpredictable. As per National Eye Institute it can relieve only about 15 percent cases.
Surgical procedure (Myectomy) is also a possible treatment, through surgery surgeons remove some of the muscles and nerves of the eyelids. Surgery has the potential to improved symptoms in 75 to 85 percent of people with eye blepharospasm.
However, for occasional eye twitching you should not bother for emergency treatment, initially only rest and relaxation often ease the problem.