Entropion
Understanding Entropion
If your eyelid has started turning inward, you already know how uncomfortable it can be. The constant scraping of lashes against your eye, the redness, the watering that never seems to stop. We want you to know that what you are experiencing is a recognized medical condition called entropion, and it is one we treat regularly with excellent outcomes.
Entropion occurs when the edge of the eyelid rotates inward toward the eyeball. The condition most commonly affects the lower eyelid, though it can occasionally involve the upper lid as well. According to clinical data, involutional entropion affects approximately 2.1 percent of people over 60 years of age, and the lower lid is involved in about 95 percent of cases (EyeWiki, 2024).
A healthy eyelid rests firmly against the surface of the eye, spreading tears evenly across the cornea with each blink and directing lashes outward, away from the eye. Muscles, tendons, and connective tissue work together to hold the lid in proper position. When any part of this support system weakens or contracts abnormally, the lid margin can roll inward.
Once the eyelid inverts, the eyelashes and the rough outer skin of the lid come into direct contact with the cornea and conjunctiva (the thin membrane covering the white of the eye). This constant rubbing, known as trichiasis when caused by misdirected lashes, produces irritation, redness, and excessive tearing. Over time, untreated entropion can scratch or thin the cornea, increasing the risk of infection and vision problems.
Types and Causes of Entropion
Involutional entropion is the most frequently seen form, particularly in adults over 60. With natural aging, the lower eyelid retractors (small muscles that help pull the lid downward) weaken, and the surrounding tendons stretch. The orbicularis muscle, which controls eyelid closure, may override these weakened structures and push the lid margin inward. Loss of orbital fat and changes in the bony structures around the eye can also reduce the support that keeps the lid in position. Patients who also notice excess eyelid skin or other age-related lid changes may find that these conditions overlap or compound one another.
Chronic inflammatory conditions such as ocular cicatricial pemphigoid, Stevens-Johnson syndrome, and severe allergic eye disease can scar the inner lining of the eyelid (the tarsal conjunctiva). As scar tissue contracts, it physically pulls the lid margin inward. Trachoma, a bacterial eye infection common in certain parts of the world, remains one of the leading global causes of cicatricial entropion.
Previous eyelid surgery, chemical burns, or significant trauma to the eye area can alter the normal anatomy of the lid and result in entropion. Herpes zoster (shingles) involving the eye and certain other infections may also trigger the scarring that leads to this condition.
Acute eye irritation from infection, dry eye, or recent surgery can cause the orbicularis muscle to spasm, temporarily pulling the lid inward. Spastic entropion usually resolves once the underlying irritant is treated, though it may progress to a chronic form in some patients.
In rare cases, entropion is present at birth. Congenital entropion sometimes resolves on its own during the first year of life. When it persists, early evaluation by an oculoplastic specialist helps determine whether intervention is needed to protect the developing cornea.
Symptoms and When to See a Doctor
Patients with entropion often describe a persistent feeling that something is in the eye. Symptoms can range from mildly annoying to severely uncomfortable, depending on how much contact the lashes and lid skin have with the eye surface. The most frequently reported symptoms include the following:
- A gritty or foreign body sensation in the eye
- Redness and irritation that worsens throughout the day
- Excessive tearing or watery eyes
- Sensitivity to light and wind
- Mucous discharge, especially in the morning
- Blurred vision caused by corneal surface disruption
Many patients notice that entropion symptoms intensify with blinking, during windy conditions, or in dry environments. Squeezing the eyes shut forcefully can temporarily push the lid further inward, making the irritation worse. Patients with other lid abnormalities such as droopy eyelids may find that their symptoms overlap or compound one another.
If you notice persistent eye redness, a gritty sensation that does not improve with lubricating drops, or a visible inward turning of your eyelid, we recommend scheduling an evaluation. Blurred vision, increasing discharge, or worsening pain may indicate that the cornea has been affected and should be assessed promptly. An eyelid malposition that has been present for more than a few days is unlikely to resolve without treatment, and early intervention helps prevent long-term corneal damage.
How Entropion Is Diagnosed
During the evaluation, we assess the position of the eyelid margin relative to the eye surface. We examine eyelid laxity by gently pulling the lower lid away from the eye (the snap-back test) and asking you to blink forcefully to observe whether the lid rotates inward. The position and direction of the eyelashes are also checked to determine whether they are making contact with the cornea.
A slit-lamp microscope allows us to closely examine the cornea for signs of damage from eyelash contact, including small scratches (punctate erosions), thinning, or early ulceration. We may apply a fluorescein dye to the eye to highlight areas of corneal abrasion that are not visible to the naked eye.
Identifying the type of entropion is important for planning treatment. We look for signs of scarring on the inner lid surface, assess the overall tone and elasticity of the eyelid tissues, and review your medical history for conditions that may have contributed. Patients who have a history of previous eyelid procedures or related conditions such as ectropion may require a more detailed assessment.
Treating Entropion
For mild or early-stage entropion, conservative treatments can help manage symptoms while a more definitive plan is developed. Lubricating eye drops and ointments protect the cornea and reduce the friction caused by inward-turning lashes. Taping the lower eyelid to the cheek with medical-grade adhesive tape can temporarily hold the lid in a normal outward position. In cases of spastic entropion, a small injection of botulinum toxin into the overactive orbicularis muscle can relax the lid and restore its correct alignment for several months.
Surgery is the definitive treatment for most cases of entropion, and a number of well-established techniques are available. The specific approach our oculoplastic surgeon recommends will depend on the underlying cause and the anatomy of your eyelid. Surgical correction achieves a successful outcome in 85 to 95 percent of cases, depending on severity and technique (clinical studies, 2020).
- Horizontal lid tightening (lateral tarsal strip) corrects laxity by shortening and reattaching the outer corner of the eyelid to the orbital bone
- Retractor reinsertion reattaches the weakened lower eyelid retractor muscles, restoring their ability to hold the lid in its correct position
- Everting sutures are small stitches placed through the eyelid that rotate the margin outward, often used for patients who may not tolerate a longer operation
- Tarsal fracture or rotation procedures address cicatricial entropion by repositioning or grafting the scarred tissue on the inner lid surface
Entropion repair is typically performed as an outpatient procedure under local anesthesia with light sedation. The surgery usually takes 30 to 60 minutes depending on the technique used. Most patients are able to return home shortly after the procedure, with a protective patch or ointment applied to the treated eye.
Mild swelling and bruising around the eyelid are expected for the first week or two following surgery. We provide specific instructions for cold compress application, prescribed eye drops, and wound care. Most patients can resume their usual activities within one to two weeks, though complete healing of the surgical site may take several weeks longer. Follow-up visits allow us to monitor your progress and confirm that the eyelid is holding its corrected position. If you are interested in understanding how eyelid surgery recovery generally progresses, we are happy to walk you through what to expect at each stage.
Frequently Asked Questions
If entropion is left untreated for an extended period, the constant friction from eyelashes rubbing against the cornea can lead to chronic abrasions, corneal thinning, scarring, and even ulceration. In severe cases, an untreated corneal ulcer can become infected and threaten vision. Early evaluation is the best way to prevent these complications.
In most cases, entropion repair is done under local anesthesia with optional light sedation, meaning you remain awake but comfortable throughout the procedure. General anesthesia is rarely necessary but may be considered for patients who have particularly involved lid anatomy or who require additional procedures at the same time.
Surgical correction of entropion is generally very effective, and most patients experience lasting results. However, the condition can recur in approximately 5 to 15 percent of cases, particularly when the underlying cause such as ongoing inflammation or progressive tissue laxity continues to affect the eyelid. Our team monitors for any signs of recurrence during follow-up appointments.
While involutional entropion is most common in adults over 60, the condition can occur at any age. Congenital entropion is present from birth, cicatricial entropion can develop after injury or disease at any stage of life, and spastic entropion can follow eye surgery or infection regardless of age. If you or a family member notices an eyelid turning inward, it is worth having it evaluated.
Entropion can affect one or both eyes. Involutional entropion frequently involves both lower lids, though one side may be more pronounced than the other. If both eyelids are affected, our oculoplastic surgeon can often address both during the same surgical session to minimize recovery time and the need for separate procedures.
Entropion and ectropion are opposite eyelid malpositions. Entropion involves the lid turning inward, while ectropion involves the lid sagging or turning outward, away from the eye. Both conditions can cause tearing, irritation, and corneal exposure, but they require different surgical techniques to correct. Patients occasionally develop one condition in one eye and the other in the opposite eye.
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