A punctal plug is a small device that blocks tear duct drainage. They may help to relieve the symptoms of chronic dry, itchy, or burning eyes.
Doctors use a procedure called punctal occlusion surgery to insert punctal plugs, which may be a temporary or long-term solution. The procedure is straightforward, but there is a slight risk of side effects. It is possible to remove the plugs if necessary, but serious problems are rare.
In this article, we look at how punctal plugs work, what to expect during and after the insertion procedure, and possible side effects.