Ectropion

Ectropion is a condition in which the lower eyelid turns outward, away from the eye, instead of resting naturally against it. This outward turning can expose the inner surface of the eyelid and the white part of the eye, causing discomfort, irritation, or watering. The condition is more common in older adults, as the muscles and tissues supporting the eyelid gradually weaken with age.

Although ectropion is most often age-related, it can also occur due to scarring, facial paralysis, previous surgery, injury, or congenital (birth-related) causes. In all cases, the change in eyelid position can interfere with the eye’s ability to stay properly lubricated and protected, leading to symptoms that often worsen if left untreated.

What are the symptoms of ectropion?

The symptoms of ectropion develop gradually and may vary depending on how much of the eyelid is affected. Common symptoms include excessive tearing, a burning or gritty sensation, redness, and sensitivity to wind or light. Dryness is also common, because the eyelid no longer spreads tears evenly across the surface of the eye, and patients may notice thickened mucus or crusting at the edges of the eyelid.

In more advanced cases, the inner lining of the eyelid may become visibly red or inflamed. The eye may also appear watery most of the time, even though it feels dry or irritated. This happens because tears cannot drain properly through the tear ducts when the eyelid is turned outwards.

These symptoms often fluctuate but tend to persist without treatment. Over time, they can interfere with reading, driving, or spending time outdoors, particularly in windy or dry environments.

What causes ectropion?

The most common cause of ectropion in the UK is the natural ageing process. As the skin and muscles around the eyes lose tone and elasticity, the lower eyelid may begin to sag and gradually turn outward. This form is called involutional or age-related ectropion and typically affects both eyes, although not always to the same degree.

Other causes include facial nerve weakness, which can occur after a stroke, infection, or surgery affecting the facial muscles. Scarring from trauma, burns, or previous eyelid surgery can also pull the eyelid outward, leading to cicatricial ectropion. Less commonly, congenital ectropion can be seen in newborns, often as part of a genetic condition.

Some inflammatory skin conditions, such as chronic dermatitis around the eyes, can also contribute to the development of ectropion by causing long-term tissue changes or scarring.

What can increase risk of developing ectropion?

Several factors increase the likelihood of developing ectropion. Age remains the most significant, as natural tissue laxity develops over time. A history of facial paralysis, such as Bell’s palsy, can increase the risk because weakened facial muscles reduce eyelid stability. Previous eye surgery or injury around the eyelid can also alter its normal support structure, making ectropion more likely later in life.

Chronic eye irritation or rubbing the eyelids frequently can worsen the condition, particularly when combined with environmental factors such as sun exposure, which can affect skin elasticity. In rare cases, certain skin cancers or growths near the eyelid margin can cause local distortion and lead to ectropion.

How is ectropion treated?

The treatment for ectropion depends on its cause and severity. Mild cases may be managed non-surgically at first, focusing on symptom relief and protection of the eye’s surface.

Non-surgical management may include:

• Lubricating eye drops and ointments: These help to prevent dryness and irritation by keeping the eye moist throughout the day.
• Artificial tears: Regular use can reduce the gritty sensation and protect the eye from further discomfort.
• Anti-inflammatory or antibiotic drops: These may be prescribed if inflammation or infection develops.
• Treating underlying causes: When ectropion is linked to facial nerve weakness or skin conditions, managing the main problem is a key part of treatment.

Surgical treatment is usually recommended for moderate to severe cases, or when non-surgical measures no longer control symptoms. The main goal of surgery is to restore the eyelid’s natural position against the eye, helping tears to drain properly and protecting the cornea from exposure.

Surgical approaches may involve:

• Eyelid tightening: A small section of the eyelid is removed near the outer corner to lift and reposition it. This is common for age-related ectropion.
• Skin graft or tissue repair: Used when scarring or trauma has caused the eyelid to pull outward, rebuilding its support structure.
• Day-case procedure: Surgery is typically performed under local anaesthetic, sometimes with sedation, allowing the patient to return home the same day.

Stitches are usually removed after about a week. Most swelling or bruising settles within two to three weeks, and comfort generally improves soon after surgery.

What happens during diagnosis and recovery?

Diagnosis of ectropion is straightforward and usually made during a routine eye examination. The ophthalmologist or oculoplastic surgeon will examine the eyelids, the tear ducts, and the surface of the eye to determine how severe the condition is and whether both eyes are affected. Special tests may be used to assess tear production and drainage, as well as the strength of the surrounding muscles.

Before surgery, a full medical assessment is carried out to ensure that the patient is fit for the procedure. The surgeon will explain what to expect, including the likelihood of temporary bruising or swelling.

After surgery, it’s common for the eyelid to feel slightly tight or tender for a few days. Patients are usually advised to use prescribed ointments and avoid strenuous activity for a short period. Most people notice a significant improvement in comfort and appearance within a few weeks. Once healing is complete, the eyelid should return to a natural position, and symptoms such as watering or irritation typically resolve.

What can happen if ectropion goes untreated?

If ectropion is not treated, the eye’s surface can become increasingly exposed and prone to complications. The longer the eyelid remains turned outward, the greater the risk of damage to the cornea and surrounding tissues.

Possible complications include:

• Chronic dryness and irritation: Constant exposure prevents tears from properly protecting the eye, leading to discomfort and redness.
• Corneal damage: Without adequate lubrication, the cornea may become scratched, infected, or develop ulcers that can affect vision.
• Persistent tearing: Because the eyelid is misaligned, tears cannot drain properly, causing constant watering.
• Inflammation of the eyelid margins: Ongoing irritation may cause swelling, redness, and thickening of the skin.
• Progressive worsening: Over time, untreated ectropion can lead to further tissue laxity, making the eyelid sag more severely.

Although these complications can sound concerning, they are largely preventable. Early assessment and treatment, especially when carried out by an ophthalmologist or oculoplastic surgeon, can restore comfort, protect vision, and prevent long-term damage.

Which medical specialist treats ectropion?

Ectropion is usually treated by an ophthalmologist, specifically one specialising in oculoplastic or eyelid surgery. These specialists have expertise in both the medical and surgical management of eyelid conditions that affect eye health and appearance.

Patients are often referred to an ophthalmologist by their GP or optician when symptoms such as persistent watering, redness, or irritation do not improve with simple measures. Early assessment ensures that any underlying causes are identified and that appropriate treatment can be started before complications develop.

Most patients experience excellent results following treatment, particularly when surgery is performed by an experienced oculoplastic surgeon. With the correct management, the eyelid regains its normal position and function, protecting the eye and restoring comfort.