Blepharospasm: The Uncontrollable Eyelid Spasms That Can Force Your Eyes Shut — and How Treatment Keeps Them Open
Updated: 3 days ago
Medically reviewed by *Dr. Baraa Alnahhal, MD*. Last reviewed October 13, 2026. This content is for educational purposes and is not medical advice.
Quick Answer
Blepharospasm is a rare neurological disorder, a type of dystonia, in which uncontrollable muscle spasms rapidly close the eyelids of both eyes [1]. It is two to four times more common in women and usually affects people ages 50 to 70 [1]. The main treatment is onabotulinumtoxinA (BOTOX®) injections, which work within two to three days and last three to four months [1].
What the research says
Botulinum toxin keeps working for years. In a study of 37 people treated for at least 15 consecutive years (26 with benign essential blepharospasm), the average treatment course lasted 19.4 years with about 62 treatments; each treatment worked for a mean of 127 days, physicians reported minor side effects in 5% of cases, and no major adverse events occurred (Czyz et al., Am J Ophthalmol, 2013) [6].
Acupuncture also lowered eyelid tension in a small trial. Thirty people were randomly assigned to botulinum toxin injection (15) or acupuncture (15). Both groups had significantly lower lower-eyelid tension; botulinum toxin dropped it from about 859 Pa to 414 Pa at 2 weeks, and acupuncture from about 813 Pa to 511 Pa at 8 weeks (Bao et al., Curr Eye Res, 2019) [4]. The trial was small, so larger studies are needed.
There is still no cure. A review of blepharospasm and related cranial dystonias notes that no causative genes have been identified, no cure is available, botulinum toxin A effectively eases symptoms, and deep brain stimulation is gaining attention as another option (Ma et al., Front Neurol, 2021) [5].
What Is Blepharospasm?
Blepharospasm is a type of eye twitching where the muscles in or around your eyes, the ones that open and close your eyelids, twitch or flex rapidly and uncontrollably. In severe cases, the spasms can force your eyes shut, limiting your eyesight [1].
Although the problem shows up in the eyelids, research shows blepharospasm is mainly a neurological issue, meaning it is related to the nervous system [1]. Your eyes contribute to when and how the spasms happen, but the root cause lies in how movement signals are processed.
What are the types of blepharospasm?
There are two main ways that blepharospasm happens.
Type | What it means | How it behaves |
|---|---|---|
Primary (benign essential blepharospasm, BEB) | The spasms happen on their own, for no identifiable reason | Usually harmless, but can still be disruptive to daily life |
Secondary | The spasms happen for a reason experts can detect or diagnose | Acts more like a symptom of another condition, which can range from minor to severe, though severe or dangerous causes are less common |
The word idiopathic simply means the cause is unknown. Primary blepharospasm (BEB) is idiopathic because experts do not fully understand why it starts.
How common is blepharospasm?
Experts are not sure just how common blepharospasm is. Based on available data, they estimate about 2,000 new cases of BEB are diagnosed each year in the U.S [1]. Overall estimates of how many people have it range between 5,000 and 100,000 in the U.S. and between 128,000 and 2.4 million worldwide [1].
Those estimates are broad for several reasons. Benign essential blepharospasm is difficult to detect, so many cases go undiagnosed. Secondary cases may be undercounted because providers list another condition as the cause. Lastly, blepharospasm occasionally goes away on its own [1].
What Are the Symptoms of Blepharospasm?
Eyelid twitching is the only symptom of blepharospasm. What sets it apart from other similar conditions are certain features of the spasms, or the way you blink your eyes.
Symptom feature | What it looks like |
|---|---|
Degree and duration of the spasms | How much the spasms close your eyes (degree) and how long they last (duration) |
Blinking more than most people | People with blepharospasm blink more times per minute, even without noticeable spasms |
Both eyes are affected | One-sided eye twitching is rare with blepharospasm |
No conscious control | It is involuntary: you cannot consciously control or stop the movements |
The spasms follow a pattern | The twitching has a pattern rather than flexing at random |
Both eyelids spasm together | Synchronized spasms are not common with other eye-twitching conditions |
“Sensory tricks” may help briefly | Spasms may improve with humming, singing, touching your face, or tasks requiring concentration like writing |
Experts classify blepharospasm as a type of dystonia, a movement disorder [1]. A trained healthcare provider knows how to tell when spasms have patterns and are not random. Experts are not sure why sensory tricks help, but they are a known feature experts watch for.
What Causes Blepharospasm?
Experts suspect that blepharospasm happens because of issues involving one of the following two areas.
The basal ganglia. This part of your brain helps with coordinating movements. Experts suspect that unusual activity in the basal ganglia can cause or contribute to blepharospasm [1].
Cranial Nerve VII (CN VII). The seventh cranial nerve, also called the facial nerve, carries nerve signals from your brain to the muscles in your eyelids. There is evidence that blepharospasm can happen if cells in the facial nerve activate even though your brain is not sending signals through them [1].
Primary vs. secondary causes
Primary blepharospasm (BEB) is idiopathic: it happens for reasons experts do not fully understand yet. Secondary blepharospasm can happen with several possible causes or contributing factors.
Cause category | Examples | Notes |
|---|---|---|
Other movement disorders | Meige syndrome; atypical forms of parkinsonism | Parkinsonism-related causes are rare |
Inflammation-related conditions | Eye surface inflammation (keratoconjunctivitis) and eyelid inflammation (blepharitis) | Called “reflex blepharospasm”; often causes dry eyes or burning eyes before the spasms start |
Light sensitivity (photophobia) | Triggers reflex blepharospasm | Tinted lenses can help |
Medications | Involuntary muscle movements as a side effect, especially Parkinson's disease drugs; tardive dyskinesia | Can increase the risk of blepharospasm |
What are the risk factors for blepharospasm?
Risk factor | What the data shows |
|---|---|
Sex | You are two to four times more likely to develop blepharospasm if you are female; spasms can also be more frequent or severe |
Age | Most likely to happen between ages 50 and 70 |
Family history and genetics | About 20% to 30% of people with blepharospasm have a biological family member with it; several DNA mutations are linked, but more research is needed |
Stress | Feeling stressed can cause blepharospasm and make attacks more frequent |
Fatigue | Attacks can happen more easily when you are very tired |
Medical history | Past and current eye injuries, eye conditions, and nervous system conditions all raise the likelihood |
Mental health conditions | Obsessive-compulsive disorder (OCD), depression, and anxiety have ties to blepharospasm, though the direction of the relationship is unclear |
What are the complications of blepharospasm?
Blepharospasm is not dangerous on its own, but it can be very disruptive and make ordinary situations hazardous. The spasms can make it hard to see or force your eyes shut completely. When severe, they can make it difficult or even impossible to drive, work, read, and more [1].
Having blepharospasm can also contribute to significant stress and other mental health concerns. People commonly feel anxious or scared about the possibility of having an attack in public. Many avoid situations where others might notice the condition, which can lead to depression, anxiety, and social isolation developing or getting worse [1].
How Is Blepharospasm Diagnosed?
Blepharospasm is difficult to diagnose, and many people need to see multiple providers from different medical specialties.
Specialty | Role |
|---|---|
Ophthalmology | Eye care specialists, especially ophthalmologists, are often the first to see someone with blepharospasm, either because of the muscle spasms or related issues like eye dryness and irritation |
Neurology | Because it is mainly a nervous system issue, neurologists often diagnose and/or help treat blepharospasm |
Diagnosing blepharospasm usually involves both a physical and neurological exam. One specific test that might help (but is not always necessary) is electromyography (EMG) [1]. Other tests might be possible, depending on the other conditions your provider suspects or your medical history.
How Is Blepharospasm Treated?
Blepharospasm is often treatable, but there is no way to cure it yet [1]. Treatments range from simpler, noninvasive methods to surgery. When blepharospasm happens with a specific cause, treating that cause is often helpful. Cases may go away on their own, but that is uncommon, and experts are not certain why it happens, or if the condition really goes away for good.
The most common and effective treatments specifically for blepharospasm include onabotulinumtoxinA injections (BOTOX®), FL-41 tinted lenses, surgery, and acupuncture [1].
Treatment | How it works | What to expect |
|---|---|---|
OnabotulinumtoxinA injections (first line) | Weaken some muscles just enough to limit spasm-causing signals without stopping you from blinking | Usually 4 to 8 injections with a tiny needle; works in 2 to 3 days; lasts 3 to 4 months; follow-up injections almost always necessary; some people need larger doses over time |
FL-41 tinted lenses | Filter light wavelengths to reduce light sensitivity, which helps blepharospasm | A specific pinkish tint is most effective; often called “blue light glasses” because they filter blue wavelengths; available at eyeglass makers and online; can be made with your prescription |
Surgery | Permanently thins the muscle to weaken it | A last resort, used for very severe blepharospasm that does not respond to injections |
Acupuncture | Research indicates it can be an effective treatment | Not as common; your provider may recommend accredited acupuncturists, including some who are also practicing medical doctors |
What Can I Expect If I Have Blepharospasm?
Blepharospasm is not life-threatening, but it can disrupt your usual routine and activities. The condition often starts with minor effects and gets worse over time [1]. Eventually, the spasms can be severe enough to prevent you from keeping your eyes open.
How long does blepharospasm last?
Primary blepharospasm is usually permanent. However, some research studies show that it goes away spontaneously in about 11% of cases [1]. More research is necessary to confirm that and explain how the condition can go away on its own. Secondary blepharospasm may go away with treatment of the underlying cause [1].
Can Blepharospasm Be Prevented?
Blepharospasm is not preventable, and there is no known way to reduce your risk of developing it [1]. But you may be able to reduce how often the symptoms happen or how severe they are.
Strategy | Why it helps |
|---|---|
Tinted lenses, hats, or other means | Help with light sensitivity |
Sensory tricks | Learning which ones work for you and using them can quiet the spasms briefly |
Limiting triggers | Managing stress and getting enough sleep may reduce attacks |
How can people live well with blepharospasm?
When blepharospasm is severe, you may need to make certain changes to your routine and activities.
Adjustment | Example |
|---|---|
Transportation | Ask for help or use public transit options if it is not safe for you to drive |
Asking for help | Know when to ask, such as when crossing the street or taking care of yourself |
Home and work environment | Adjust to make it easier to reach what you need and reduce the risk of falls or injuries related to trouble seeing |
Work and activities | Adjust what you do if you cannot see well enough to do it |
Supportive devices and services | Learn to use tools and services that help you adjust or compensate for trouble seeing |
What vitamin deficiency causes blepharospasm?
One small research study on 50 people from 2020 found that people with BEB were more likely to have lower levels of calcium and vitamin D [1], but that study did not specifically conclude that those deficiencies were causing blepharospasm. For now, there is little to no research that conclusively shows blepharospasm can happen because of vitamin or mineral deficiencies.
Conclusion
Blepharospasm may be a rare condition, but it can have a big impact on your life. It can make it hard to do things you once had no problem doing, like driving a car, reading, or watching TV. And if you cannot predict when spasms will happen or how they will affect you, leaving the house can become a source of anxiety, worry, or even fear.
The encouraging part is that treatment exists. OnabotulinumtoxinA injections, the first-line option, typically calm the spasms for months at a time [1], and tinted lenses, surgery, and acupuncture offer further options for people with severe or resistant cases. Treatment can make all the difference, keeping your eyes open and preventing this condition from shutting you out of the things you would rather be doing.
See a specialist. If you think you have symptoms that could be blepharospasm, see an eye care specialist. They can either start the process of testing for this condition or guide you to a specialist who can.
Explore Rinnit.com's library of clear, research-backed health guides to keep learning about eye and nerve conditions.
Frequently Asked Questions
What is blepharospasm?
Blepharospasm is uncontrollable muscle twitching or spasms that force the eyelids closed. It is classified as a type of dystonia (a movement disorder) and is mainly a neurological issue, even though the symptoms appear in the eyes.
Is blepharospasm serious or dangerous?
Blepharospasm itself is not life-threatening, but it can be very disruptive. Severe spasms can force the eyes completely shut, making it hard or impossible to drive, read, or work safely.
Why do both eyes spasm at the same time?
Blepharospasm is a movement disorder that affects the signals controlling the eyelids, so the spasms are synchronized and affect both eyes. One-sided twitching is rare.
How do I know if my eyelid twitch is blepharospasm or something else?
Blepharospasm spasms are involuntary, affect both eyes, follow a pattern rather than happening randomly, and may briefly improve with “sensory tricks” like humming or touching your face. A regular eye twitch from fatigue or stress is usually one-sided, brief, and temporary.
Can blepharospasm go away on its own?
Primary blepharospasm is usually permanent, but research shows it goes away spontaneously in about 11% of cases. Secondary blepharospasm may go away with treatment of the underlying cause.
What is benign essential blepharospasm (BEB)?
BEB is the primary form of blepharospasm, which happens on its own with no identifiable underlying cause (idiopathic). It is usually harmless but disruptive.
Who is most likely to develop blepharospasm?
Women (two to four times more likely than men), people ages 50 to 70, and those with a family history. About 20% to 30% of affected people have a biological family member with it.
Does stress cause blepharospasm?
Feeling stressed can cause blepharospasm and make attacks more frequent. Fatigue can also trigger attacks, and managing stress plus getting enough sleep may reduce them.
What causes the spasms in the brain?
Experts suspect unusual activity in the basal ganglia (the part of the brain that coordinates movement) or signals firing in the facial nerve (Cranial Nerve VII) even when the brain is not sending them.
What is secondary blepharospasm?
Secondary blepharospasm happens for a detectable reason, for example another movement disorder (Meige syndrome, atypical parkinsonism), eye or eyelid inflammation (reflex blepharospasm), light sensitivity, or side effects of certain medications.
How do BOTOX® injections treat blepharospasm?
Providers inject a small amount of onabotulinumtoxinA into the muscles around the eyes to weaken them just enough to limit spasm-causing signals, not so much that you cannot blink.
How long do blepharospasm injections last?
The injections usually start working within two to three days and remain effective for about three to four months, so follow-up injections are almost always necessary.
Do the blue-light tinted glasses really help?
FL-41 tinted lenses are the most effective pinkish tint for filtering light wavelengths that trigger light sensitivity, which in turn helps blepharospasm. They can be made with your prescription.
Is surgery an option for blepharospasm?
Surgery is a last resort that permanently thins the muscle to weaken it. It is considered for very severe cases that do not respond to onabotulinumtoxinA injections.
Can blepharospasm affect my mental health?
Yes. People commonly feel anxious about having attacks in public, and many avoid social situations, which can lead to or worsen depression, anxiety, and social isolation.
Related Reading
Blepharitis: Symptoms, Causes, and Treatment: when the edge of your eyelid gets red, swollen, and uncomfortable
Dry Eyes: Symptoms, Causes, Treatment & Relief: Complete Guide: why your eyes feel gritty, tired, and burning
Dystonia: Symptoms, Causes, and What Treatment Can Actually Do: the movement disorder family that blepharospasm belongs to
Sources
Cleveland Clinic. Blepharospasm: Definition, Causes & Treatment Options. Cleveland Clinic. Updated April 5, 2024. https://my.clevelandclinic.org/health/diseases/21546-blepharospasm
American Academy of Ophthalmology. What Is an Eyelid Spasm or Twitching Eyelid? American Academy of Ophthalmology. Accessed October 14, 2026. https://www.aao.org/eye-health/diseases/eyelid-spasm-twitch
American Academy of Ophthalmology. Blepharospasm. EyeWiki. Updated July 21, 2026. https://eyewiki.aao.org/Blepharospasm
Bao FF, et al. Treatment Effects of Botulinum Toxin Injection and Acupuncture on Blepharospasm Assessed by the Change in Lower Eyelid Tension. Current Eye Research. 2019;44(6):679-683. PMID 30724635. https://doi.org/10.1080/02713683.2019.1578379
Ma H, et al. Blepharospasm, Oromandibular Dystonia, and Meige Syndrome: Clinical and Genetic Update. Frontiers in Neurology. 2021;12:630221. PMID 33854473. https://doi.org/10.3389/fneur.2021.630221
Czyz CN, et al. Long-term botulinum toxin treatment of benign essential blepharospasm, hemifacial spasm, and Meige syndrome. American Journal of Ophthalmology. 2013;156(1):173-177.e2. PMID 23541393. https://doi.org/10.1016/j.ajo.2013.02.001
Medical Disclaimer
The information in this article is for general informational purposes only and is not intended as professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read here.
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