Cicatricial entropion is an inward turning of the eyelid caused by scar tissue on the inner surface of the lid, and it can permanently damage vision if left untreated. Unlike the more common age-related (involutional) form, which results from loosened muscles and connective tissue, cicatricial entropion stems from actual scarring of the conjunctiva or the firm tissue plate (tarsus) that gives the eyelid its shape. The scarred tissue contracts, pulling the eyelid margin and lashes inward against the eye. While surgical correction is the mainstay of treatment, the underlying scarring disease often dictates both the timing and the type of surgery needed.
What Causes Cicatricial Entropion
The common thread in every case of cicatricial entropion is scarring of the posterior lamella, the inner layer of the eyelid that includes the conjunctiva and tarsus. That scarring can come from infections, autoimmune diseases, chemical injuries, or even prior surgery. Globally, the single largest cause is trachoma, an eye infection caused by the bacterium Chlamydia trachomatis. Repeated infections from childhood trigger chronic inflammation in the conjunctiva lining the inner lid, eventually producing enough scar tissue to distort the lid margin and turn lashes inward.1PubMed Central. Trachomatous trichiasis and its management in endemic countries Trachoma remains a leading infectious cause of blindness in parts of Africa, Asia, and the Middle East, and the eyelid damage it causes is a major driver of that blindness.2Ophthalmic Surgery, Lasers and Imaging Retina. Eyelid Complications in Trachoma I. Cicatricial Entropion
In higher-income countries where trachoma is rare, autoimmune conditions are a more common culprit. Ocular cicatricial pemphigoid (also called mucous membrane pemphigoid) is an autoimmune disease in which the body’s immune system attacks the mucous membranes of the eye, mouth, and sometimes other areas. Chronic inflammation gradually scars the conjunctiva, shrinks the fornices (the pockets between the eyelid and the eyeball), and can eventually invert the lid.3PubMed Central. Ocular cicatricial pemphigoid (Review) Stevens-Johnson syndrome, a severe drug reaction or infection response that blisters the skin and mucous membranes, can cause similar devastating scarring of the eyelids.4PubMed. Surgical reconstruction of the ocular surface in advanced ocular cicatricial pemphigoid and Stevens-Johnson syndrome
Chemical burns to the eye, especially alkali burns that penetrate deeply, can also scar the conjunctiva enough to cause cicatricial entropion. Other less frequent causes include chronic allergic eye disease (such as vernal keratoconjunctivitis), radiation therapy to the face, and scarring from previous eyelid surgery. Essentially, anything that produces sustained inflammation or direct injury to the inner eyelid surface can lead to the condition.
How Scarring Leads to an Inturned Eyelid
The eyelid is a layered structure. The front (anterior) lamella consists of skin and the muscle that closes the eye. The back (posterior) lamella consists of the tarsus and the conjunctiva. In cicatricial entropion, scar tissue forms in the posterior lamella, shortening and stiffening it. Because the front lamella remains its normal length, the imbalance pulls the lid margin inward. Histological studies of affected eyelids show dense fibrosis in the tissue just below the surface, around the small muscle fibers at the lid margin, and around the hair follicles of the eyelashes.5Ophthalmic Plastic & Reconstructive Surgery. Cicatricial Entropion in Chronic Cicatrizing Conjunctivitis: Potential Pathophysiologic Mechanisms and Long-Term Outcomes of a Modified Technique This widespread fibrosis explains why the condition is often progressive and why the eyelid tends to roll further inward over time if the underlying disease is not controlled.
The result is that the eyelashes, and sometimes the keratinized skin of the lid margin itself, rub against the cornea with every blink. That constant abrasion, called trichiasis, is the immediate problem patients experience. It is also the reason prompt treatment matters: the cornea can only tolerate so much friction before it breaks down.
Symptoms and Why They Matter
The most obvious symptom is the sensation of something in the eye. Patients describe a foreign-body feeling, tearing, redness, and light sensitivity, all caused by lashes scraping the corneal surface. In mild cases only a few lashes may be misdirected. In severe cases the entire lid margin turns inward, and the irritation is constant.
What makes cicatricial entropion particularly dangerous is its potential to cause corneal damage. The in-turned lashes can produce corneal abrasions that, if they persist, progress to corneal ulcers and permanent scarring.6Annals of African Medicine. Ectropion and entropion in sub-Saharan Africa In trachoma-endemic areas, this cascade from lid scarring to corneal opacification is the primary pathway to blindness.1PubMed Central. Trachomatous trichiasis and its management in endemic countries Even infants can develop corneal ulcers from congenital entropion, and early detection is critical to prevent permanent vision loss in those cases.7PubMed Central. Neonatal corneal ulcer secondary to congenital entropion
The impact goes beyond physical discomfort. Studies of patients with trachomatous trichiasis and entropion show that the condition substantially erodes quality of life, even when measured vision is still normal. People with trichiasis score lower across physical health, psychological well-being, social relationships, and environmental domains compared to matched controls.8PubMed. Health-related quality of life in patients with trachomatous trichiasis or entropion Roughly six in ten affected individuals report feeling embarrassed by their condition, about nine in ten worry about losing their remaining sight, and nearly seven in ten have disturbed sleep.9PubMed Central. The Impact of Trachomatous Trichiasis on Quality of Life: A Case Control Study These findings reinforce the importance of timely treatment, not just to protect vision, but to relieve a daily burden of anxiety and discomfort.
Diagnosing the Condition and Its Underlying Cause
Diagnosing cicatricial entropion itself is usually straightforward on physical examination. A clinician can see the inward-turned lid margin, the misdirected lashes touching the cornea, and scarring of the conjunctiva. The more challenging task is identifying what caused the scarring, because the treatment plan depends heavily on whether the underlying disease is still active.
For suspected autoimmune causes like ocular cicatricial pemphigoid, a conjunctival biopsy examined under direct immunofluorescence is considered the gold standard. However, the test is far from perfect: up to about 40% of patients who truly have the disease can have a negative biopsy.3PubMed Central. Ocular cicatricial pemphigoid (Review) Among the immune markers tested, complement component C3 is the most reliably positive and appears in all positive biopsies, sometimes as the only marker detected.10PubMed Central. Direct Immunofluorescence Findings and Factors Affecting Conjunctival Biopsy Positivity in Ocular Mucous Membrane Pemphigoid A negative biopsy, then, does not rule out the diagnosis, and clinicians often need to rely on the overall clinical picture and sometimes repeat biopsies.
In trachoma-endemic settings, the diagnosis is usually clinical. Characteristic patterns of scarring on the tarsal conjunctiva, combined with the patient’s history and geographic context, are enough to guide management. For post-traumatic or post-surgical cicatricial entropion, the cause is generally apparent from the patient’s history.
Medical Management Before Surgery
For cicatricial entropion caused by an ongoing inflammatory or autoimmune disease, controlling the inflammation is the first priority. In ocular cicatricial pemphigoid, for example, treatment involves systemic immunosuppressive medications and sometimes corticosteroids to halt the scarring process.11PubMed Central. Ocular cicatricial pemphigoid This step is not optional. Operating on an eyelid while the underlying disease is still actively producing new scar tissue invites failure. One important finding in the literature is that eyelid surgery can actually worsen the disease course in conditions like pemphigoid, so the inflammation must be brought under complete control before any surgical intervention.11PubMed Central. Ocular cicatricial pemphigoid Surgeons typically maintain systemic immunosuppressive therapy and sometimes add perioperative corticosteroids to reduce the risk of a flare.12PubMed. Long-term results of mucous membrane grafting in ocular cicatricial pemphigoid. Implications for patient selection and surgical considerations.
While awaiting disease control or surgery, patients can get some relief from lubricating drops and ointments to protect the cornea. For a few isolated misdirected lashes, epilation (plucking) provides temporary relief, though lashes typically regrow within weeks. These measures buy time but do not fix the structural problem.
Surgical Approaches
Surgery is the definitive treatment for cicatricial entropion, but no single technique suits every case. The choice depends on the severity of the lid inversion, how much the posterior lamella has shortened, and whether the condition involves the upper or lower lid. Most techniques fall into two broad categories: those that rotate the lid margin outward and those that add tissue to replace what the scarring has consumed.
Tarsal Rotation Procedures
In tarsal rotation, the surgeon makes a horizontal incision through the tarsus, rotates the lower segment of the lid margin outward, and sutures it into the corrected position. Two main variations exist. Posterior lamellar tarsal rotation (PLTR) works from the inside of the lid and rotates just the posterior portion. Bilamellar tarsal rotation (BLTR) cuts through the full thickness of the lid. In the context of trachomatous trichiasis, a randomized trial found that PLTR produced significantly lower recurrence rates than BLTR: roughly 8% versus 21% of eyes developed recurrent trichiasis at one year.13PubMed Central. Outcomes of posterior lamellar tarsal rotation vs bilamellar tarsal rotation for trachomatous trichiasis That advantage persisted at four years, with about 14% recurrence in the PLTR group versus 22% with BLTR.14EClinicalMedicine. Posterior lamellar versus bilamellar tarsal rotation surgery for trachomatous trichiasis: Long-term outcomes from a randomised controlled trial These findings have shifted practice in trachoma-endemic regions toward PLTR as the preferred technique.
Anterior Lamellar Recession
Rather than rotating the tarsus, anterior lamellar recession (ALR) separates the skin-muscle layer from the underlying tarsus and recesses it, allowing the posterior lamella to flatten out. This approach avoids fracturing or cutting through the tarsus entirely, which may preserve tear-film stability. A comparative study found that ALR without tarsal fracture and marginal rotation with tarsal fracture had comparable success rates for correcting the entropion, but ALR was associated with better postoperative tear-film stability.15PubMed Central. Postoperative Dry Eye Following Anterior Lamellar Recession Without Tarsal Fracture Versus Marginal Rotation With Tarsal Fracture in the Treatment of Cicatricial Entropion: A Comparative Study In a larger series, ALR combined with correction of associated lid problems (such as drooping or retraction) achieved a satisfactory outcome in about 96% of patients with a single procedure.16Europe PMC. Anterior lamellar recession for management of upper eyelid cicatricial entropion and associated eyelid abnormalities
Mucous Membrane Grafting
When scarring is more severe and the posterior lamella has lost too much tissue for rotation alone to work, surgeons often need to add new tissue. A mucous membrane graft, harvested from the inside of the lip (labial mucosa) or the hard palate, replaces the shortened conjunctiva and provides a smooth surface to face the cornea. This approach is used for moderate-to-severe cicatricial entropion, both in primary repairs and in recurrent cases where a prior surgery has failed.17PubMed. Mucous membrane grafting for cicatricial entropion repair: review of surgical techniques and outcomes Labial mucous membrane grafts have shown good long-term stability and low recurrence rates for severe upper-eyelid cases.18PubMed. Management of Severe Cicatricial Entropion With Labial Mucous Membrane Graft in Cicatricial Ocular Surface Disorders Hard palate grafts similarly provide high symptomatic and anatomical cure rates for both upper and lower eyelids, with low rates of needing additional surgery.19PubMed. Cicatricial entropion repair with hard palate mucous membrane graft: surgical technique and outcomes
In cases where the posterior lamella needs additional structural support beyond soft tissue, cartilage grafts taken from the ear (auricular cartilage) or hard palate can be sutured to the tarsus to provide rigidity and resist the inward pull of scar tissue.20Arq. Bras. Oftalmol.. Anterior tarsal flap rotation combined with anterior lamellar reposition in the repair of cicatricial upper eyelid entropion Newer approaches have also explored buccal mucosal “plugs” for focal areas of trichiasis, reporting good results at short-term follow-up with no lash regrowth at the graft site.21PubMed Central. The buccal plug: A technique for management of focal cicatricial entropion and trichiasis
Recurrence and Reoperation
Cicatricial entropion is more prone to recurrence than involutional entropion because the underlying scarring disease may continue or the graft tissue may contract over time. Recurrence rates vary with the technique and the severity of disease. In one series using anterior lamellar recession with buccal mucous membrane grafts, about 77% of eyelids were corrected on the first attempt. Four eyelids (11%) needed repeat grafting, mostly because the graft shrank, bringing the cumulative success rate to 89%.22Ophthalmic Plastic & Reconstructive Surgery. Anterior Lamellar Recession With Buccal Mucous Membrane Grafting for Cicatricial Entropion Another series using ALR with additional lid procedures reported a 75% primary success rate, with failures appearing on average around four and a half months after surgery. Most of those failures responded to re-treatment such as electrolysis of misdirected lashes or repeat surgery.23Eye. Anterior lamellar recession, blepharoplasty, and supratarsal fixation for cicatricial upper eyelid entropion without lagophthalmos
The key message is that some patients will need more than one procedure, and that expectation should be set before surgery. Recurrence does not necessarily mean the surgery failed in a technical sense; it often reflects the progressive nature of the underlying scarring disease or natural graft contraction. Close follow-up in the first year is important for catching early recurrence when it is easiest to manage.
Postoperative Complications to Watch For
Beyond recurrence, specific complications depend on the grafting material used. Hard palate mucosal grafts, for instance, have a rougher surface than native conjunctiva and can irritate the cornea in the early postoperative period. In one series, the graft epithelium needed to be smoothed down with a diamond burr, and patients wore bandage contact lenses to protect the cornea while the surface settled.24PubMed. Management of severe cicatricial entropion using shared mucosal grafts Acellular dermal allografts (donor tissue processed to remove cells) have been tried as an alternative, but graft shrinkage and small granulomas at the conjunctival surface have been reported.25Annals of Plastic Surgery. Posterior Lamellar Eyelid Reconstruction With Acellular Dermis Allograft in Severe Cicatricial Entropion
Dry eye is another common postoperative issue, particularly after procedures that involve cutting the tarsus. Disrupting the structural plate of the eyelid can alter how the lid distributes the tear film across the cornea. As noted earlier, techniques that avoid tarsal fracture may have an edge in preserving tear-film stability, which is a practical consideration for surgeons choosing an approach.
Trachoma Elimination and the Global Picture
Because trachoma is the world’s largest single cause of cicatricial entropion, efforts to eliminate the disease directly reduce the burden of this condition. The World Health Organization’s SAFE strategy, combining Surgery for existing trichiasis, Antibiotic distribution, Facial cleanliness promotion, and Environmental improvement, has driven substantial declines in active trachoma over the past two decades.26PubMed Central. Eradicating blinding trachoma: What is working? The surgical component of SAFE focuses specifically on correcting trichiasis and entropion in people who already have lid scarring, while the other three prongs work to prevent new infections from occurring in the first place.
Despite progress, millions of people in endemic areas still live with untreated trichiasis and its consequences. Access to trained surgeons remains a bottleneck: in many remote communities, the nearest eye care facility is hours or days away. Field-based surgical programs, where trained health workers perform tarsal rotation procedures in community settings, have been critical for reaching these populations. The shift toward posterior lamellar tarsal rotation, which offers lower recurrence, is especially meaningful in these contexts where patients may not have easy access to follow-up care or reoperation.
How Cicatricial Entropion Differs From Other Types
People sometimes confuse cicatricial entropion with the involutional type that develops in older adults. Involutional entropion results from age-related looseness in the muscles and connective tissue that hold the eyelid in position. It tends to be intermittent at first and affects the lower lid far more often than the upper. Cicatricial entropion, by contrast, is constant once established and frequently involves the upper lid, especially in trachoma. The treatment strategies differ accordingly: involutional entropion is usually fixed with procedures that tighten the lid’s support structures, whereas cicatricial entropion requires addressing the scar tissue itself, often by adding replacement tissue to the shortened posterior lamella.
Spastic entropion is a third type, caused by sustained spasm of the orbicularis muscle, often triggered by inflammation or irritation. It usually resolves once the underlying cause is treated. Recognizing which type of entropion is present matters because the wrong surgical approach will not address the root problem and may even make things worse.
When Both Eyes Are Affected
Bilateral involvement is common in systemic conditions like ocular cicatricial pemphigoid and trachoma, where the disease process does not respect the boundaries of a single eye. In pemphigoid, both eyes are affected in the majority of cases, though often at different stages. This asymmetry can complicate surgical planning: one eye may be ready for surgery while the other is still in an active inflammatory phase. Surgeons generally address the more severely affected eye first, provided the inflammation is controlled, and then manage the second eye once it has also been stabilized.
Trachoma, similarly, often scars both upper lids, though the severity can differ. In community-based surgical programs, surgeons will operate on both eyes during the same session if both meet criteria for surgery, since the patient may not easily return for a second visit. The choice to operate on one versus both eyes at once involves balancing surgical efficiency against the small risk that bilateral postoperative complications could leave the patient temporarily unable to see out of either eye.