Punctal plugs are sometimes called dry eyes tear duct plugs or punctum plugs. They are tiny medical devices designed to relieve chronic dry eye symptoms. They are inserted into the tear ducts (also known as puncta) to help keep moisture on the surface of your eye for longer.
If you suffer from persistent dry, gritty, or burning eyes that don’t improve with artificial tears or drops, punctal plugs may be a safe, long-term solution. The insertion is a non-surgical and pain-free procedure.
Tears naturally drain away from your eyes through small openings called puncta, located in the upper and lower eyelids. In people with evaporative dry eye, tears evaporate too quickly, leaving the eye surface unprotected. In people with tear aqueous deficiency, the tear volume is inadequate for the ocular surface.
Punctal plugs block these drainage points, allowing your natural tears to stay on the surface of your eye for longer. This helps:
The following diagram highlights the various use cases of punctal plugs and how they can be used to alleviate symptoms of several dry eye conditions:
Punctal plugs come in different forms. Each type of punctal has its own benefits that are key to helping you with the variety of dry eye conditions. Below is a list of the types you can expect to see:
The punctal plug procedure is quick, safe, and minimally invasive without the need for anaesthesia:
Patients often report the procedure feels like having an eyelash touched on the eye — a brief, mild sensation with no lasting discomfort.
It is important to ensure that any significant inflammation has been treated before having punctal plugs so a prior full assessment is strongly advised.
No, the procedure is quick and painless. Most patients describe a bit of pressure during the insertion.
Most people do not feel them. Some people are aware of them for a few days after insertion but tend to settle very quickly. If there is lasting discomfort, they can be adjusted or removed.
This depends on your insurance provider.
Most people will feel a benefit within days of insertion.
Punctal occlusion is generally not the sole treatment option for dry eye disease, it may be combined with another therapy to achieve symptom relief.
Plugs can cause excessive tearing so patient selection is important. Rarer risk includes plug migration, choice of plug is therefore important.
The area surrounding the plug can become infected but this is a rare occurance and can be treated with medicated drops and removal of the plug if required.
Punctal plugs can last from weeks to years and depends on the type of plug used. Certain types can fall out and an alternative type can be considered for longer lasting effect. The stability of a plug can depend on the anatomy of the tear duct.