May 8, 2014 
Blepharospasm is a muscular dystonia that causes involuntary and uncontrollable clenching of the muscle around the eye…
The muscle around the eye uncontrollably squeezes and closes the eye which consequently jeopardizes vision and makes the daily tasks – such as driving a car or working on the computer – seem almost impossible to perform.
The disease occurs mainly in the elderly and mostly bilaterally (affecting both eyes), but sometimes it can affect only one side. The cause is not fully known, and the seizure can be caused by strong or blinking light, wind, dust and other irritating factors.
Initially, interferences are mild and occur rarely in the form of discomfort, irritation and blinking. Over time, they become more common and stronger, and along with squeezing the eyelid, the person can get uncontrolled spasms in parts of the face or forehead. In some patients blepharospasm starts simultaneously with the dry eye syndrome. It is believed that the dry eye is really just a trigger in patients with predisposition.
With the progression of blepharospasm, the blinking becomes more frequent, stronger and less controllable, and thus drastically lowers the quality of life.
How to treat blepharospasm ?
Since 1989, Botox injections are used to reduce symptoms of blepharospasm.
Botox ( botulinumtoxin A ) is a neurotoxin that is used as a remedy in the form of injections in the affected muscle , resulting in the relaxation of the muscle spasm . The process of applying the injection is not painful – possibly, there is a mild discomfort at the place of injection.
The first results are visible within three days, not longer than one to two weeks after the application of Botox. The effect lasts about three to four months, when treatment can be repeated.
The treatment leads to muscle relaxation, reduction of reluctant and uncontrolled blinking and enables normal performing of everyday tasks.
Taken from: www.ordinacija.hr