Patients and their families should be clear: lacrimal system disease is a complex disease, especially traumatic lacrimal disease is even more complex. It is not 100% curable under current medical conditions! It is not curable! This is especially true for recurrent, multiple surgeries, etc.! Advantages: For patients with simple upper or lower lacrimal duct dissection, the use of the first international lacrimal duct exploration device and the light finding method can quickly and non-invasively find the proximal end of the lacrimal duct; surgical indications: fresh and old upper and lower lacrimal duct dissection, combined with partial eyelid loss, medial canthus deformity, entropion, and incomplete eyelid closure. The surgery requires exploration of the broken tear duct and anastomosis of the broken end, as well as repair of the ruptured medial canthal ligament and, if necessary, medial canthoplasty to restore the medial canthal structure as much as possible and implantation of a silicone prosthetic tube. Relative contraindications: significant wound swelling and bruising, severe tearing of the lacrimal duct, trauma combined with nasolacrimal duct fracture, orbital bone fracture, previous surgery for nasal polyps or sinusitis, combined with tumor! The cost is about 7000 RMB/eye. Pre-operative examination: those suspected of nasal diseases need to undergo nasal endoscopy + photos to understand the bilateral middle and lower turbinates, middle and lower nasal tracts and nasal septum, and nasopharynx. The septum, middle nasal tract, and middle turbinates need to be more normal in structure, especially to exclude possible nasal polyps, severe fractures, sinusitis, atrophic rhinitis, significant deviation of nasal septum, nasal cavity and sinus, and nasopharyngeal tumors. Preoperative CT of the orbit (coronal scan + plain scan) is also required in some patients to understand the lacrimal sac and the condition of the lacrimal bone and orbital bone with the nasal bone! If there is no obvious lacrimation and pus flow, it is better to perform a second surgery after 3 months to 6 months after the injury! Before surgery, the lacrimal ducts should be flushed with needles from the upper and lower lacrimal dots respectively to clarify the site of fracture. Pre-operative preparation: Pre-operative examination should be completed to exclude hypertension, heart disease, diabetes and other systemic diseases and abnormal eye pressure, and nasal hair cutting. Pre-operatively, start filling the lower nasal tract with Nootropics and Elkayin solution, 1 time/20 minutes, 3 times in total. After the operation (outpatients pay the fee and take the outpatient medical record) go to the second area for observation for 1-2 hours before going home (some patients need to remove the nasal hemostatic sponge). There is a possibility of blood in the nose for 1-2 months after surgery and regular review is needed. Post-operative elastic bandage wrapping the operated eye for 1-2 days, and in principle, no post-operative lacrimal flushing probe! In order to prevent the emergence of false tracts, or even the surgical wound suture disintegration resulting in incision and cracking situation. Some patients need to place drainage strips! If the prosthetic tube is exposed in the anterior nostril after surgery, there is no need to be nervous, and the tube should be inserted back into the nostril with a cotton swab after cleaning. The skin line will be removed about 2 weeks after surgery. If the tube needs to be removed, it is usually done after the anastomosis is completely epithelialized (more than 3-6 months). In case of rejection of the prosthetic tube, infection, tearing of the lacrimal punctum, increased secretion, and the prosthetic tube coming out on its own, the tube can be removed promptly. The removal of the tube may be delayed in case of combined scarring! Bring all the medications for each review! (General medication for about 4-6 weeks) Post-operative medication: nasal spray medication: nortone (plus 1ml of compound neomycin eye water mixture) nasal spray should be back to the aspiration action. Eye drops medication: Colistin ophthalmic solution (or Tobias ophthalmic solution) with chymotrypsin ophthalmic solution, 4 times/day. Surgical success rate: Because traumatic tear duct rupture is not simply an ocular disease, but closely related to nasal sinus orbital and maxillofacial diseases, especially some patients with combined local tissue defects and significant edema and bleeding may develop inner canthus deformity, lower lid ectropion, tear dots tear, wound dehiscence, lacrimation, and reoperation after surgery, etc. Not all cases can be cured, and the success rate of the first surgery is about 90% as reported internationally, and our hospital The success rate of the first surgery is reported to be about 90% internationally, but the success rate at our hospital is over 95%, and nearly 100% for fresh breaks. Possible complications of surgery: postoperative lacrimation, wound dehiscence, recurrence of obstruction, and even recurrence of pus flow may occur, but there may be opportunities for secondary surgery or artificial tear duct implantation and successful cases.