Abnormal Movement of the Eyelid

Types of abnormal eyelid movement

Doctors separate eyelid movement problems by what the lid is doing.

Common causes

Eyelid myokymia

Myokymia is an involuntary rippling of a few fibers in the orbicularis oculi, the muscle that closes the eye. It feels obvious but is often barely visible to others. It usually affects one eyelid, comes and goes over the day, and lasts days to a few weeks. Triggers include:

• stress and lack of sleep
• caffeine and alcohol
• eye strain from screens or uncorrected vision
• dry eyes and allergies
• nicotine

It is harmless and does not lead to other neurological problems.

Dry eye and eye irritation

Irritation of the eye surface makes you blink more and can provoke twitching. Gritty, burning, watery eyes that improve with lubricating drops suggest dry eye or blepharitis.

Tics

Children and teenagers often have brief, repetitive blinking or eye-scrunching tics. They can be suppressed for a short time, often worsen with stress or tiredness, and usually fade. Persistent multiple tics may be part of Tourette syndrome.

Less common but important causes

Benign essential blepharospasm

Blepharospasm is a focal dystonia, a disorder of the brain's movement control circuits. It usually begins after age 50 and is more common in women. It starts with increased blinking and eye irritation, then progresses to involuntary squeezing of both eyes. In severe cases the eyes clamp shut for seconds to minutes, making people functionally blind during spasms. Bright light, stress and reading worsen it. Touching the brow, humming or talking may briefly relieve it.

Hemifacial spasm

Hemifacial spasm affects one side of the face only. Twitching usually starts around the eye and spreads over months to the cheek and corner of the mouth. Spasms continue during sleep. It is most often caused by a blood vessel pressing on the facial nerve where it leaves the brainstem, so doctors order an MRI.

Nerve and muscle problems that cause droop

• Third nerve palsy: droop plus an eye turned down and out, double vision, sometimes a large pupil. A painful third nerve palsy with a dilated pupil is an emergency.
• Horner syndrome: a mild droop, a small pupil and less sweating on one side of the face.
• Myasthenia gravis: an autoimmune condition that makes muscles tire. Lids droop more as the day goes on, often with double vision. A twitch with a droopy lid can occur when a fatigued lid flutters as it tries to stay up.
• Age-related ptosis: the lifting tendon stretches with age or long-term contact lens use.

Eyelid that will not close

Facial nerve palsy, most often Bell's palsy, weakens the muscle that closes the eye. The lid cannot close fully, the eye dries out and the cornea can be damaged. Taping the eye closed at night and using lubricants protects it.

Eye twitch and droopy eyelid together

A twitch alongside a droop is most often a harmless combination: tiredness causes both mild drooping and myokymia. It needs medical review if the droop persists after a night's sleep, is getting worse over the day, comes with double vision, or affects other facial muscles.

How doctors assess eyelid movement problems

A doctor or eye specialist will ask how long it has lasted, whether one or both eyes are affected, whether it spreads to the face, whether it happens in sleep, and about caffeine, sleep, stress, medicines and other symptoms. They will examine:

• lid position and the gap between lids, and how the lids move with eye movement
• pupils for size difference
• eye movements for weakness or double vision
• the eye surface for dryness or inflammation
• facial strength and other cranial nerves

Tests are only needed when the history suggests a specific cause: MRI or MRA for hemifacial spasm and painful third nerve palsy, an ice-pack test and acetylcholine receptor antibodies for myasthenia, and thyroid blood tests for lid retraction.

Treatment and home care

For benign twitching

• Get more sleep and reduce caffeine and alcohol.
• Take regular screen breaks (look at something 6 m or 20 ft away for 20 seconds every 20 minutes).
• Use preservative-free lubricating eye drops.
• Apply a warm compress for a few minutes to relax the lid.

Most episodes settle within 1 to 3 weeks.

For blepharospasm and hemifacial spasm

• Botulinum toxin injections into the lid muscles are the main treatment. They relieve spasms in most people and are repeated every 3 to 4 months.
• Tinted glasses (such as FL-41 lenses) can reduce light sensitivity in blepharospasm.
• Oral medicines help a minority.
• Microvascular decompression surgery can cure hemifacial spasm caused by a blood vessel.
• Myectomy (removing some lid muscle) is reserved for blepharospasm that does not respond to injections.

For drooping or failure to close

Treatment targets the cause: myasthenia medicines, eye protection in Bell's palsy, or surgery to tighten the lifting muscle in age-related ptosis.

Frequently asked questions

What causes abnormal movement of the eyelid?

The most common cause is eyelid myokymia, a harmless twitch triggered by stress, poor sleep, caffeine or eye strain. Other causes include dry eye, tics, blepharospasm, hemifacial spasm, nerve palsies, myasthenia gravis and thyroid eye disease. Duration and accompanying symptoms help separate them.

What does an eye twitch with a droopy eyelid mean?

Often it simply means tiredness, which causes both a mild droop and twitching. If the droop persists after rest, worsens through the day, or comes with double vision, a large or small pupil, headache or facial weakness, see a doctor to check for myasthenia gravis, a nerve palsy or Horner syndrome.

How long does eyelid twitching last?

Benign twitching typically comes and goes for a few days to 3 weeks and fades once triggers such as stress, caffeine and lack of sleep ease. Twitching lasting longer than 3 weeks, closing the eye fully, or spreading to the face should be checked.

Is eyelid twitching a sign of a stroke?

Isolated twitching is not a sign of stroke. Stroke causes sudden weakness, such as a drooping face or lid, slurred speech or arm weakness, rather than twitching. If a droopy lid or face appears suddenly with any of those signs, call 911 or your local emergency number.

Can Botox stop eyelid spasms?

Yes. Botulinum toxin injections are the first-line treatment for benign essential blepharospasm and hemifacial spasm. They weaken the overactive muscle for about 3 to 4 months. Side effects can include a temporary droopy lid or dry eye. They are not used for ordinary short-lived twitching.