| blepharospasm | Twitching of an eyelid. Often benign and related to emotional stress, sleep deprivation or the use of stimulants (for example amphetamines, caffeine, nicotine, decongestants). (27 Sep 1997) |
|---|
| dystonia, focal, due to blepharospasm | The second most common focal dystonia, the involuntary, forcible closure of the eyelids. The first symptoms may be uncontrollable blinking. Only one eye may be affected initially, but eventually both eyes are usually involved. The spasms may leave the eyelids completely closed causing functional blindness even though the eyes and vision are normal. (12 Dec 1998) |
|---|