What is Lacrimal Duct Obstruction?
Lacrimal duct obstruction, also known as nasolacrimal duct obstruction (NLDO), is a condition that occurs when the tear ducts become...
What is Lacrimal Duct Obstruction?
Lacrimal duct obstruction, also known as nasolacrimal duct obstruction, is a condition that occurs when the tear drainage system of...