Canalicular Tear Repair

Overview

The canaliculi are the tiny tubular channels in the inner corner of each eyelid that drain tears from the eye surface into the tear sac and down toward the nose. A canalicular laceration is a cut through one of these channels, almost always caused by trauma to the inner eyelid. Canalicular tear repair is the microsurgical reconnection of the torn channel, usually over a soft silicone stent, to restore normal tear drainage.

Because these channels are less than a millimetre wide and heal quickly, repair is a delicate, time-sensitive procedure best performed soon after the injury while the cut edges are fresh. Left unrepaired, the channel can scar shut, leading to a permanently watery, uncomfortable eye.

Canalicular repair is a specialised oculoplastic procedure, and outcomes depend on the injury and timing; some tearing can persist despite good surgery. This page is an educational overview only — it is not medical advice, and no outcome can be guaranteed.

Who May Need This

Repair is needed by people who have sustained a laceration of the inner eyelid that involves the tear-drainage channel. Common mechanisms include dog bites, hooks or sharp objects, fingernails, motor-vehicle and sports injuries, and blunt trauma that avulses (tears away) the inner corner of the lid. Children and young adults are frequently affected.

Any inner-eyelid wound should be examined by an eye specialist, because canalicular involvement is easy to miss and the eyeball itself must also be checked for injury. An oculoplastic or ophthalmic surgeon determines whether the drainage channel is torn and needs reconnecting.

When It May Be Recommended

Repair is recommended promptly — ideally within about 24 to 48 hours — when examination confirms a cut through a canaliculus. Early surgery, before the tissue swells and scars, offers the best chance of restoring drainage and correctly aligning the delicate channel over a stent.

If an injury is missed and the channel scars shut, a later reconstructive or bypass procedure may be needed instead. Timing is therefore a key part of the recommendation, alongside the extent of the eyelid injury and the condition of the eye.

Diagnosis and Evaluation

Assessment begins with a careful examination of the eyelid wound and the whole eye to rule out injury to the eyeball, orbit, and other structures. The surgeon inspects the inner corner of the lid and may gently probe or irrigate the drainage system to identify the cut ends of the canaliculus.

Imaging (such as a CT scan) may be arranged if a deeper facial or orbital injury or a retained foreign body is suspected. Tetanus status and any bite-wound infection risk are considered. Because these injuries are often emergencies, evaluation and repair are frequently arranged on the same day.

Treatment Options

The standard treatment is primary surgical repair over a stent, reconnecting the torn channel while the tissue is fresh. Surgeons use either a monocanalicular stent (through the injured channel only) or a bicanalicular stent (a loop through both upper and lower channels and into the nose) depending on the injury.

If only one of the two canaliculi is torn and the other drains well, some surgeons repair the lid and monitor, since a single intact channel can maintain drainage. For old, scarred injuries that cannot be directly repaired, a later conjunctivodacryocystorhinostomy (bypass) operation may be considered. The approach depends on which channels are involved and the timing.

How It Is Performed

Repair is performed under local anaesthesia with sedation or, especially in children, under general anaesthesia, using an operating microscope. The surgeon identifies the cut ends of the canaliculus — sometimes aided by injecting fluid or air or using fine probes — and threads a soft silicone stent through the drainage system to bridge and align the torn ends.

The delicate channel is then reconnected with very fine sutures around the stent, and the surrounding eyelid tissue is repaired in layers to restore normal lid position. The stent is secured and left in place to keep the channel open while it heals. The procedure is typically an outpatient one and takes about an hour, depending on the injury.

Preparation

Because repair is usually urgent, preparation is often rapid: the team confirms the extent of the injury, checks tetanus status, starts antibiotics if there is a bite or contaminated wound, and arranges anaesthesia. Tell the team about medications, including blood thinners, and any allergies.

If care is being arranged abroad, note that timing is critical, so local emergency treatment may be needed first. Bring records of the injury and any imaging, and plan for the follow-up visits and the later stent-removal appointment your surgeon will schedule.

Benefits and Expected Goals

The goal of repair is to restore normal tear drainage so the eye does not water constantly, to realign the inner eyelid correctly, and to prevent the long-term problems of a scarred, blocked channel. A well-timed repair over a stent gives many appropriately treated patients a good functional result.

Benefits vary with the severity and timing of the injury. Some scarring or partial narrowing can remain, and a minority of people have persistent watering needing further treatment. Your surgeon can explain the realistic outlook for your specific injury.

Risks and Possible Complications

Canalicular repair is generally safe, but risks include the following.

• Persistent watering (epiphora) if the channel scars or narrows despite repair
• Stent problems — the stent becoming loose, dislodged, or causing irritation, or premature loss
• Infection of the wound or drainage system
• Scarring or malposition of the eyelid affecting appearance or lid function
• Failure of the channel to stay open, sometimes needing a further (bypass) procedure
• Rarely, injury to nearby structures or the need for revision surgery

Your surgeon will explain the risks specific to your injury and how each is managed. Report increasing pain, discharge, or a dislodged stent promptly.

Recovery, Follow-up & Aftercare

After repair the inner eyelid is usually bruised and swollen for one to two weeks. You will typically use antibiotic ointment or drops and may take oral antibiotics if the wound was contaminated, and you should avoid rubbing or bumping the eye while the delicate repair heals. The stent will be visible as a fine loop or tube at the inner corner.

The silicone stent stays in place for several weeks to a few months and is then removed in a brief office procedure. Attend all follow-up visits so the repair and stent position can be checked and the stent removed at the right time. Arrange this follow-up, including stent removal, locally before returning home.

Medical Tourism Planning

Because canalicular injuries are time-sensitive, urgent local care usually comes first; planned travel is more relevant for delayed reconstruction or stent management. If arranging care abroad, choose a JCI- or ISO-accredited hospital with an experienced oculoplastic surgeon and microsurgical facilities.

Plan for the repair, the healing period, and — importantly — the later stent-removal appointment, arranging this with an eye specialist at home if you travel back before removal. Request a written treatment plan and cost estimate, and consider medical travel insurance.

Estimated Cost Factors

The cost of canalicular repair depends on the country and hospital, the surgeon’s fees, the type of stent used, whether general or local anaesthesia is needed, the complexity of the eyelid injury, any imaging, and follow-up including stent removal. Emergency after-hours care and treatment of associated injuries can add to the cost.

Many destinations offer oculoplastic surgery at a fraction of typical US prices, but figures vary and online prices are only estimates. Always request a personalized written quote that specifies what is included, including stent removal, before deciding.

Choosing a Hospital or Specialist

Look for an accredited hospital with an oculoplastic surgeon experienced in canalicular and eyelid trauma repair and access to microsurgical equipment and stents. Ask how they identify and reconnect the torn channel and how they manage persistent watering if it occurs.

Confirm the arrangements for urgent assessment, stent removal, and international patient support. Transparent written pricing and a clear explanation of the timing and realistic outcome are signs of a quality centre.

Alternatives

If only one canaliculus is torn and the other drains adequately, some surgeons repair the eyelid without stenting the drainage system and monitor for watering. For injuries discovered late, once the channel has scarred shut, direct repair is no longer possible and a tear-drainage bypass operation (conjunctivodacryocystorhinostomy) may be offered instead.

Simply observing an untreated canalicular tear risks permanent watering, so prompt assessment is important. Discuss the options and their timing with an oculoplastic specialist so the plan fits your specific injury.

Questions to Ask Your Doctor

• Is my tear-drainage channel torn, and has my eyeball been checked for injury?
• How soon should the repair be done, and what type of stent will you use?
• How long will the stent stay in, and where will it be removed?
• What are the specific risks in my case, and how likely is persistent watering?
• How experienced are you with canalicular and eyelid trauma repair?
• What follow-up will I need, and can stent removal be arranged near home?
• What is included in the written cost estimate?