Eye twitching — which actually is twitching of an eyelid — is common and harmless.
Most eye twitching lasts only a few minutes, but sometimes an eyelid twitch can persist for days or longer. If you have an eye twitch that doesn't go away relatively quickly, see an eye doctor. The medical term for eye twitching is myokymia. If you experience eye twitching that doesn't go away, this could signal a serious neurological condition affecting the eyelid.
If you experience eye twitching, take a close look at this list and note which of these potential triggers might apply to you. Sometimes, making minor changes to your diet and lifestyle can significantly reduce your risk of eye twitching or help make an eyelid twitch disappear.
Stress is probably the most common cause of eye twitching. Yoga, breathing exercises, spending time with friends or pets and getting more down time into your schedule are ways to reduce stress that may be causing your eyelid twitch.
Lack of sleep, whether because of stress or some other reason, can trigger eye twitching. Catching up on your sleep and having a consistent sleep schedule can help.
3. Eye strain
Eye strain — particularly digital eye strain from overuse of computers, tablets and smartphones — also is a common cause of eyelid twitching.
Follow the "20-20-20 rule" when using digital devices: Every 20 minutes, look away from your screen and allow your eyes to focus on a distant object (at least 20 feet away) for 20 seconds or longer. This reduces fatigue that may trigger eye twitching.
Too much caffeine can trigger eye twitching. Try cutting back on coffee, tea and soft drinks (or switch to decaffeinated versions) for a week or two and see if your eye twitching disappears.
5. Dry Eyes
Many adults experience dry eyes, especially after age 50. Dry eyes also are very common among people who use computers, take certain medications, wear contact lenses and consume caffeine. If you have a twitching eyelid and your eyes feel gritty or dry, see your eye doctor for a dry eye evaluation. Restoring moisture to the surface of your eye may stop the eye twitching and decrease the risk of twitching in the future.
6. Nutrition Problems
Some reports suggest a lack of certain nutritional elements, such as magnesium, can trigger eyelid spasms. Although these reports are not conclusive, this may be another possible cause of eye twitching. If you are concerned that your diet may not be supplying all the nutrients you need for healthy vision, discuss this with your eye doctor before purchasing over-the-counter nutritional supplements.
People with eye allergies can have itching, swelling and watery eyes. Rubbing your eyes because of allergy symptoms releases histamine into your eyelid tissues and tear film, which may cause eye twitching.
Sometimes, over-the-counter eye drops formulated to reduce allergy symptoms can be helpful. But antihistamines in these drops can cause dry eyes. It's best to consult your eye doctor to make sure you're doing the right thing for your eyes if you experience allergy symptoms and eye twitching.
When to see an eye doctor
See an eye doctor immediately if you experience persistent eye twitching, sudden changes in appearance or movement of half your face (including your eyelids), or if both eyelids clamp down so tight it's impossible to open your eyes. These can be signs of a serious condition.
This post originally appeared on All About Vision.