Blepharospasm (eye twitch)
Blepharospasm (or eye twitch), also known as benign essential blepharospasm, is the involuntary twitching of the eyelids, caused by a dysfunction of the seventh cranial nerve. Usually it lasts just for a few minutes, hours, or days, but in severe cases may be chronic, and in rare cases, it may be difficult to open the eyes.
Vitamins & Supplements
Certain nutrients such as magnesium malate chelate may help alleviate symptoms of Blepharospasm.
The incidence of Blepharospasm is as follows:
- Affects approximately 25,000 people in the United States.
- Usually occurs in individuals between the ages of 50-60 years old.
- Women have three times greater incidence than men.
- May occur in presence of stressful situations, bright lights and fatigue.
- Usually happens more during the day, and gets better during sleep.
- Eyelid twitching (myokymia may be a precursor to blepharospasm)
- Excessive blinking
- Light sensitivity
- Dry eyes
- Eye strain or fatigue
There are three kinds of blepharospasm: bilateral, in which both eyes close suddenly, usually at the same time; pseudo-apraxic, in which both eyes close slowly at the same time; and combined, in which both types are experienced.
Blepharospasm is caused by abnormal functioning of the bundles of nerve cells which are located below the cortex at the top of the spine. These nerve cell clusters are responsible for, among other things, control of voluntary movements, routine movements such as eye movements, and emotion. Consequently stress and irritation in the eye seem to be a likely causes of minor eye blinking and twitching.
Some drugs may contribute to the incidence, as well as hormone replacement therapy. Another possible cause is withdrawal from benzodiazepine drugs for insomnia, anxiety, convulsions, alcohol withdrawal and muscle spasms. Some health conditions may increase the incidence of eye twitching, such as multiple sclerosis, AIDS, TB, Parkinson's, Tourette's syndrome, cerebral palsy, tardive dyskinesia, some infections, and some brain injuries or tumors.
There may be a connection with dry eyes and light sensitivity and dry eyes may be a contributing trigger.
It is thought by some health professionals that eye twitches may be aggravated by imbalances in calcium, magnesium and/or potassium levels. Magnesium is often recommended.
In one instance a woman suffered from blepharospasm after long-term treatment of a calcium channel blocker, taken for dizziness.1 In another case, a patient with muscle weakness and pseudoblepharospasm was found to have elevated antibodies against calcium, and treatment with a potassium channel-blocker and an immune system suppressant reduced the eye muscle spasms.2 Many anecdotal accounts report treating blepharospasm with magnesium3, 4 Too high levels of potassium may contribute to blepharospasm.1
There has been little or no research about use of magnesium and calcium or too high levels of potassium - so check with your doctor or naturopath if you have chronic blepharospasm.
Botulinum toxin is the approved medical treatment in the United States and Canada. It weakens the muscles by blocking the nerve impulses transmitted from the nerve endings of the muscles.
The benefits begin 1-14 days after treatment and lasts for an average of three to four months. The success rate is up to 90% in stopping the spasms (twitching).
The side effects of this treatment may be drooping eyelids, blurred vision, and/or double vision. Side effects are usually short-term. Speak to your doctor for more details.
Drugs - no specific drug has been shown to be effective as of this time. Consult your neurologist for possible new medications.
Surgery - as a possible last resort. protractor myectomy is most effective for severe cases. This procedure removes the muscles responsible for closing the eyelids.
You can try supplementing with magnesium, but you should check with your doctor if the condition is chronic.
Because stress may be a contributing factor, sometimes paying attention to issues causing stress and self massage can be helpful.
- Massaging the cheek, jaw and gum muscles can sometimes bring immediate relief for mild cases.
- If you feel inside your mouth, you'll find the masseter muscle, a hard muscle near the back which moves up and down vertically.
- Use your pointer finger at the top end of the masseter muscle, next to the upper gum and begin begin pressing firmly checking for tender places.
- Press any tender spots for about 30 seconds, not too hard, just as much as you can stand. More pain is not helpful.
- Work your way around the top of this muscle, pressing any tender spots.
- In the same way, find tender spots and press for 30 seconds along the upper back gum line.
- Generally it will take not more than 3-4 days for relief.
- If possible, avoid drugs that contribute to or aggravate blepharospasm.
- Stop caffeine intake, specifically coffee, tea, chocolate or any soft drinks with caffeine.
- Stop smoking
- Dark glasses are helpful for your light sensitivity
- Make sure your computer setup uses proper ergonomics
- Use natural light if possible
- Take steps to reduce chronic stress at your job, and manage your stress with meditation or yoga
- Dry eyes
- Computer eye strain
- Myokymia - sometimes a precurser to blepharospasm, myokymia is contractions of very fine muscles, usually on only one eyelid, usually on the lower eyelid. It differs from blepharospam in that in the latter the eyelids blink open and closed.
- Fasciculation - refers to any involuntary movement of the fine eye muscles.
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Resources & Footnotes
1. H. Alonso-Navarro, et al., Tardive blepharospasm associated with cinnarizine use, Clinical Pharmacology, July-August, 2006
2. N. Kanzato, et al., Lambert-Eaton myasthenic syndrome with ophthalmoparesis and pseudoblepharospasm, Muscle Nerve, December, 1999
3. C. Ploceniak, Bruxism and magnesium, my clinical experiences since 1980, Revue de Stomatologie et de Chirurgie Maxillo-faciale, 1991
4. Good Health, NZ, "10 signs that you're magnesium deficient", 2014