Blepharospasm is a condition of an involuntary closure of the eyes, caused by contraction of the muscles surrounding the eyes.
Normally we blink at a rate of 10-20 times per minute but if you have blepharospasm the blink rate and the tone of the muscles is much increased. In severe cases people are unable to open their eyes for seconds or minutes at a time which can be terrifying and dangerous especially if driving or operating machinery. The cause of blepharospasm is thought to be a neurological disorder, a problem with the blink reflex control centre. An injection of Botox® into the muscles around the edge of the eyelids can give relief for 80-90% of individuals. The effects of the Botox® injection lasts for up to 12 weeks, at which point the procedure would need to be repeated to maintain its effectiveness.
I must point out that this procedure is available on the NHS but I am happy to administer it to patients who may prefer the flexibility and comfort of privately funded treatment.