Canaliculodacryocystostomy is a procedure used to treat blocked tear ducts by creating a new drainage pathway from the lacrimal sac to the nasal cavity. The surgery is performed when the tear duct is obstructed, leading to excessive tearing or chronic eye infections.

During the procedure, the surgeon creates an opening between the lacrimal sac and the nose to bypass the blocked duct, restoring normal tear drainage. This procedure is commonly performed when other treatments, such as stenting or dacryocystorhinostomy, have not been successful.

Canaliculodacryocystostomy effectively alleviates symptoms like excessive tearing and recurrent infections by restoring proper tear drainage.