Chronic lacrimal sacculitis is a common eye disease, commonly known as “wind-driven tears” and “wind-driven eyes”. Patients mainly show frequent tearing and pus flowing from the corner of the eye, usually without local pain, skin redness and other discomfort, medically known as “chronic dacryocystitis”. The pus that fills the tear sac contains a large number of bacteria, as if it were a reservoir of bacteria, and if there is a wound on the eye, the bacteria will take advantage of the situation and cause keratitis or corneal ulcers. In mild cases, corneal scarring will remain after healing; in severe cases, blindness will result from corneal ulceration and perforation. Therefore, ophthalmologists often compare chronic dacryocystitis as a “time bomb” next to the eye. It is important to note that chronic lacrimal sacitis has an impact on eye surgery, such as glaucoma, cataract and myopia surgery, and can cause serious post-operative infections, which can only be done after the chronic lacrimal sacitis is cured. Therefore, when the phenomenon of tearing at the corner of the eye occurs, it should not be taken lightly and should be treated as soon as possible. Chronic dacryocystitis used to be commonly used in the past with lacrimal duct exploration and flushing and threading retention, but the results were not satisfactory. The traditional lacrimal sac nasal anastomosis has insurmountable drawbacks such as large surgical trauma, significant bleeding and facial scarring. Laser lacrimal ductoplasty combined with implantation is an ophthalmic micro-innovation technique that applies a laser to open up the lacrimal duct obstruction site and implant a lacrimal stent at the same time to induce lacrimal duct shaping and restore patency for treatment purposes. It has the following advantages: high success rate of surgery; less bleeding, less pain; simple, safe and time-saving operation; no skin incision, no scar on the face after surgery; no change of the original anatomical position, after the artificial nasolacrimal duct obstruction, it can be re-intervened or changed to other methods; wide indications for surgery, and certain efficacy.