What It Really Means When Your Eyelid Twitches

If you're experiencing involuntary sensations that cause your eyelid to blink or spasm, you could have a common phenomenon known as eyelid twitching. The science behind this isn't clear-cut, but it's thought to occur when the muscles around your eyes (or the eyes themselves) move involuntarily. Eyelid twitching is not a medical condition by itself, but is instead a symptom that may be related to a variety of different causes. In the majority of cases, eyelid twitches are not serious, and are only temporary. While rare, persistent cases, those that involve both eyes, and those that are accompanied by other worrisome symptoms, could point to more serious issues. It's always a good idea to see medical professional if you're worried about your eye health, but in many cases they may recommend a few lifestyle adjustments to help address eyelid twitching.

First, it's important to know the two types of eyelid twitching: eyelid myokymia and benign essential blepharospasm (BEB). Also simply known as "myokymia," the first type of eyelid twitching is considered mild, and is characterized by occasional symptoms that don't require any medical intervention. It's also the most common form of eyelid twitching. BEB, on the other hand, is a relatively rare condition, but its effects on eye function are more serious. It is a type of dystonia, which is a movement disorder that leads to uncontrollable and involuntary muscle movements (in this case, around the eyes). People who experience this type of eyelid twitching might have constant symptoms that lead to uncontrollable eyelid closure that may last from a few seconds at a time up to several hours. For these reasons, BEB usually requires treatment.

While there's no single known cause of eyelid twitching, there are some known risk factors that are thought to contribute to eyelid myokymia. These typically include things that may place strain on your eyes, such as lack of sleep, excess screen time, and stress. Eyes that are dry or irritated can also cause eyelid twitching. Additionally, certain medications, such as calcium channel blockers (to treat hypertension) and antiseizure drugs, or substances like nicotine and alcohol are also linked with mild and intermittent eyelid twitching. Excess caffeine from coffee, tea, and energy drinks is yet another possible culprit.

The good news is, any of these common risk factors for mild eyelid twitching are usually resolved by making simple lifestyle changes. For example, if you suspect your caffeine habits are to blame, minimizing your intake to below the 400 mg maximum daily recommendation can help. Trying to get enough sleep and dealing with stress as best as you can is also helpful. Over-the-counter artificial tears can help with occasional dry eye symptoms, particularly during colder weather months. As for medications, never adjust your dosage or stop taking any prescriptions without talking with a medical professional first.

Eyelid twitching that happens occasionally without bothering you usually doesn't indicate any serious problem. However, if the twitching is constant and starts to interfere with your daily activities, this could mean there's a more worrisome underlying cause. While not considered direct causes, some of the lifestyle contributors to myokymia can also increase the risk of BEB symptom development. It may also have a genetic component. Aside from BEB, eyelid inflammation (blepharitis) is another possible contributor to chronic eyelid twitching that could be treated by either an optometrist or ophthalmologist. In these cases, a doctor may need to rule out possible neurological conditions that might be to blame. These include dystonias such as BEB, as well as multiple sclerosis, Tourette syndrome, and Bell's palsy.

Botulinum toxin ("Botox") injections are the most common treatment option for BEB. These work by relaxing muscles around the eyes that contribute to twitching. According to Johns Hopkins Medicine, Botox injections may control symptoms of eyelid twitching for up to 3 months at a time, but they can also cause side effects such as temporary bruising and eyelid drooping. While rare, some cases of severe eyelid twitching may require surgery, especially if lifestyle and medications do not help.

Despite the severity of BEB and other more serious underlying causes of eyelid twitching, it's worth bearing in mind that these are not common. With that said, any concerns about eyelid twitching are best addressed with a medical professional. This is especially the case if you do not experience improvements despite avoiding unhealthy sleep shortcuts, keeping tabs on caffeine intake, and taking care of your eyes more generally.