Nasolacrimal Duct Stenting

Some patients have watery eyes caused by a delay in the passage of tears, without evidence of a blockage of the tear drainage system. This is sometimes called ‘functional obstruction’ or ‘functional delay’. In other patients, the watery eyes can be caused by a partial obstruction of the tear drainage system. In these situations, silicone stents can be placed through the length of the nasolacrimal system.