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Ectropion is the outward turning of the eyelid margin away from the ocular surface. It usually affects the lower eyelid and may impair the eyelid's protective function. When the eyelid does not fully contact the ocular surface, tears cannot be distributed normally, and tear drainage may be disrupted. This may result in watering, redness, stinging and dryness of the ocular surface. In advanced cases, more serious ocular surface problems may develop because the cornea remains exposed. Treatment is planned by assessing why the eyelid has turned outwards and how much the ocular surface has been affected.
What Causes Ectropion?
The eyelids consist of skin, muscle, connective tissue and supporting structures. These structures work together to maintain appropriate contact between the eyelid and the ocular surface. The ligaments supporting the eyelid may become lax with age. Scarring, facial paralysis or eyelid masses may also cause the eyelid to turn outwards. More rarely, congenital structural differences may cause ectropion. The main types of ectropion associated with outward turning of the eyelid include:
- Age-related involutional ectropion.
- Scar-related cicatricial ectropion.
- Paralytic ectropion caused by facial nerve dysfunction.
- Mechanical ectropion caused by a mass or additional weight.
- Congenital ectropion.
The cause of the outward turning differs between types of ectropion. In some patients, the problem is caused by laxity of the eyelid tissue. In other cases, the skin surrounding the eye shortens and pulls the eyelid downwards. Facial paralysis may affect the function of the muscles that move the eyelid. An eyelid mass may also alter the weight of the eyelid and cause it to turn outwards. Treatment should be selected following a detailed assessment of these causes.
Age-Related Ectropion
Involutional ectropion develops when the tissues supporting the eyelid become lax with age. The ligaments supporting the eyelid at the inner and outer corners may lose elasticity over time. Horizontal lengthening of the lower eyelid may cause it to move away from the ocular surface. Structural changes in the eyelid muscles may also accompany this condition. When the eyelid margin turns outwards, tear drainage is disrupted, and watering begins. Symptoms usually develop gradually and become more noticeable over time.
Age-related ectropion does not occur to the same degree in every patient. In some people, only the opening of the tear duct turns outwards. In more advanced cases, a large part of the lower eyelid may move away from the ocular surface. Wind, dry air and air-conditioned environments may increase discomfort. The degree of eyelid laxity is assessed during the examination. The treatment decision is based on the patient's symptoms and the condition of the corneal surface.
Scar-Related Ectropion
Cicatricial ectropion occurs when the eyelid is pulled downwards because of scarring or shortening of the surrounding skin. Trauma, burns, previous eyelid surgery and certain skin diseases may cause this condition. Stiffness in the healed tissue may pull the eyelid away from its normal position. The problem is not only eyelid laxity but also insufficient skin tissue. Therefore, treatment planning may differ from that used for age-related ectropion. The patient's previous operations and facial scars should be examined in detail.
The degree of skin shortening determines the surgical method. Releasing the scar and supporting the eyelid again may be sufficient for some patients. A skin graft or different repair methods may be considered when tissue deficiency is more significant. Shortening the eyelid alone does not resolve the problem in every case. The degree of corneal exposure is also important when making the treatment decision. The appropriate method should be selected by assessing the eyelid and surrounding tissues together.
Facial Paralysis and Paralytic Ectropion
Paralytic ectropion may develop when the muscles that move the eyelid weaken because of facial nerve dysfunction. Facial paralysis may make it difficult to close the eyelids and blink. While the lower eyelid sags downwards, the upper eyelid may also fail to close adequately. This may expose the cornea and cause dryness of the ocular surface. The duration and underlying cause of the facial nerve dysfunction may change the treatment plan. Rapid assessment may be required in some cases to protect the ocular surface.
Not every patient with facial paralysis develops the same degree of eyelid problems. Eyelid closure, tear volume and the corneal surface should be examined together. The possibility of nerve function recovering over time may also be considered. Temporary lubrication and eyelid support may be sufficient for some patients, while surgery may be required in other cases. If significant pain, sensitivity to light or reduced vision occurs, an examination should be performed without delay to assess possible corneal damage. Treatment should be planned according to the cause of the facial paralysis and the need to protect the eye.
What Are the Symptoms of Ectropion?
Since the eyelid moves away from the ocular surface in ectropion, the eye's natural moisture balance may be disrupted. Dryness and irritation may develop when tears are not distributed appropriately. Despite this, patients frequently seek medical advice because of excessive watering. The outward turning of the eyelid margin may prevent tears from reaching their normal drainage pathway. Exposure of the ocular surface to wind and dry air may increase the symptoms. The main symptoms of ectropion include:
- Persistent watering.
- Burning and stinging.
- Redness of the eyelid.
- Discharge.
- Foreign body sensation.
- Sensitivity to light.
- Outward turning of the eyelid.
- Blurred vision in advanced cases.
Watering and irritation may cause patients to wipe their eyes frequently during the day. Constantly wiping the area around the eyes may cause additional skin sensitivity. The eyelids may not close completely during sleep in some patients. This may increase dryness and discharge in the morning. The severity of the symptoms varies according to the degree of outward turning and the condition of the ocular surface. The same symptoms are not expected in every patient.
Why Does the Eye Water Continuously?
Tears normally spread across the ocular surface and then travel towards the nasal cavity through small openings at the inner corners of the eyelids. These openings are known as the puncta. When the lower eyelid turns outwards, the punctum may also move away from the area where tears collect. Tear drainage may therefore be disrupted even if the tear duct is completely open. Dryness of the ocular surface may also trigger reflex production of more tears. Together, these two conditions may cause persistent watering.
Not every case of watering indicates a tear duct obstruction. The eyelid position, the opening of the tear duct and the condition of the ocular surface should be assessed together. Whether the tear drainage pathways are open may be checked when necessary. Assessing only the tear duct may not be sufficient in patients whose watering is caused by ectropion. Repositioning the eyelid margin may form part of the treatment plan. The method should be selected according to the cause of the watering.
How Is Ectropion Diagnosed?
Ectropion is usually diagnosed through an examination of the eyelid. However, the eyelid tissues affected by laxity or traction should be assessed to prepare an accurate treatment plan. Horizontal laxity may be examined by gently pulling the lower eyelid forwards. Whether the eyelid returns to its original position after being pulled downwards is also checked. The opening of the tear duct and the ligaments supporting the corners of the eyelid are assessed separately. The main methods that may be used during the examination include:
- Assessment of lower eyelid laxity.
- Examination of whether the eyelid returns to its original position.
- Examination of the tear duct opening.
- Ocular surface examination with a biomicroscope.
- Assessment of the corneal surface using fluorescein dye.
- Examination of the tear drainage pathways when necessary.
Fluorescein dye may help assess whether dryness or damage is present on the corneal surface. Whether the eyelid closes completely is also examined. Blinking movements and facial muscle function should be assessed separately in patients with facial paralysis. Scarring or a mass on the skin may change the treatment plan. The same tests are not required for every patient. The scope of the examinations is determined according to the cause of the ectropion and its effect on the ocular surface.
Non-Surgical Supportive Treatments
Supportive treatments aimed at protecting the ocular surface may be used in mild cases of ectropion. Artificial tear drops and eye ointments may help reduce dryness. Different moisturising methods may be considered to protect the ocular surface at night in some patients. Suitable medical tapes may also be used to provide temporary eyelid support. However, these measures do not always correct a significant structural eyelid disorder. Treatment is selected according to the patient's symptoms and the condition of the corneal surface.
Protecting the ocular surface may become even more important in patients who cannot undergo surgery immediately. Supportive treatments may be planned while waiting for nerve function to recover when facial paralysis is temporary. Closer follow-up may be required if significant ocular surface damage is present. The frequency of drops and ointments should be determined according to the individual examination findings. Using the same products or protective methods for every patient is inappropriate. Surgical options are considered when supportive treatments are insufficient.
How Is Ectropion Surgery Performed?
Ectropion surgery is planned to correct the structural problem causing the eyelid to turn outwards. In age-related eyelid laxity, strengthening the ligaments supporting the outer corner of the eyelid may be considered. In the method known as the lateral tarsal strip, the lower eyelid is appropriately shortened and supported. Repositioning the corner of the eyelid may also be required in some patients. Additional procedures on the inner part of the eyelid may be performed when the tear duct opening has turned outwards. The surgical method should be selected according to which part of the eyelid is affected.
Different surgical techniques may be combined in patients with laxity affecting the entire eyelid. In some cases, a small section of eyelid tissue is removed to adjust its horizontal length. The aim is to restore appropriate contact between the eyelid and the ocular surface. However, surgery does not produce the same outcome in every patient. Eyelid structure, skin quality and accompanying eye diseases affect the recovery process. The method is selected following a detailed examination.
When Is a Skin Graft Required?
In cicatricial ectropion, the outward turning of the eyelid may be associated with shortened skin tissue. Simply shortening or tightening the eyelid may not be sufficient in this situation. The scar may need to be released, and the missing tissue may need to be replaced. A skin graft may be taken from the upper eyelid, behind the ear or another suitable area in some patients. The location and size of the tissue are determined according to the patient's anatomy. A skin graft is not required in every case of scar-related ectropion.
The healing of the transplanted tissue is closely monitored after graft surgery. The new position of the eyelid and the blood supply to the skin are assessed during follow-up examinations. Special dressings or additional eyelid support may be required in some patients. Sun protection and care of the wound area are important during recovery. However, the appearance and recovery of the graft may vary from person to person. The appropriate surgical approach should be selected according to the degree of skin shortening and the condition of the ocular surface.
Surgical Approaches for Facial Paralysis
In ectropion caused by facial paralysis, the closing movement of the upper eyelid should be assessed in addition to the lower eyelid. Dryness and damage may develop on the corneal surface if the eye cannot close completely. Surgical procedures that support the lower eyelid may be planned for suitable patients. Placement of a gold or platinum weight in the upper eyelid may be considered in some cases. These weights aim to support eyelid closure with the help of gravity. The method is selected according to the severity of the facial paralysis and the likelihood of recovery.
Temporary or permanent tarsorrhaphy may be performed in patients with significant corneal exposure. Tarsorrhaphy is a surgical method that aims to protect the ocular surface by joining part of the eyelids. Weight placement or tarsorrhaphy is not required for every patient with facial paralysis. Treatment is selected by considering tear volume and the corneal findings. Close follow-up with lubricating drops and protective methods may be sufficient for some patients. Assessment should not be delayed if reduced vision or significant pain develops.
Postoperative Recovery and Care
Mild swelling, bruising and a feeling of tightness around the eyes may occur after ectropion surgery. Recovery varies according to the surgical method and the patient's tissue characteristics. When considered appropriate, the physician may recommend applying a cold compress around the eye at certain intervals. Eye drops or ointments should be selected according to the individual treatment plan. The sutures are assessed during follow-up and removed when necessary. The main points to consider after surgery include:
- Avoid rubbing the eyelid.
- Use drops and ointments recommended by the physician.
- Apply a cold compress when appropriate.
- Protect the area around the eye from trauma.
- Attend all follow-up examinations.
- Wear sunglasses when necessary.
Care of the transplanted area is planned separately in patients who receive a skin graft. Applying pressure to the eyelid or irritating the incision may adversely affect healing. The timing of returning to physical activity varies according to the surgical method. A follow-up assessment should be performed without delay if severe pain, rapidly increasing swelling or reduced vision occurs. Mild bruising and swelling do not resolve within the same period in every patient. Recovery is monitored by assessing the eyelid position and the condition of the corneal surface together.
What Happens If Ectropion Is Left Untreated?
If ectropion is left untreated, dryness and irritation may increase because the ocular surface remains continuously exposed. Watering may continue because of impaired tear drainage. Chronic conjunctivitis or damage to the corneal surface may develop in some patients. In more advanced cases, a corneal wound or infection may occur. Regular assessment is important because these problems may affect vision. However, not every case of ectropion progresses at the same rate.
When planning ectropion treatment, the presence of eyelid laxity, scarring, facial paralysis or another cause is assessed. Treatments aimed at protecting the ocular surface may be sufficient in mild cases. Surgical options may be considered for more significant eyelid abnormalities. The method should be selected according to the anatomical structure of the eyelid and the condition of the cornea. Regular examinations help monitor watering and ocular surface problems. You can contact me using the contact information on my website to arrange an examination.
