Some patients often have more than tears, and even pus, how to do? Dr. Wu Wencan, associate professor at the Affiliated Optometric Hospital of Wenzhou Medical College, recently carried out the first “transnasal endoscopic lacrimal sac nasal opening and drainage” in a domestic ophthalmology hospital, which can solve this problem in half an hour, telling patients to turn “crying” into “smile”. The day before yesterday, a 75-year-old woman suffering from “chronic dacryocystitis” Qingtian, the left eye suffers from frequent tears, pus for up to 4 years, Wu Wencan use the most advanced nasal endoscopic minimally invasive surgical techniques for its surgery, the patient no discomfort after surgery, according to information, human tears from the tear duct to the common tear duct, to the tear sac, and then from the tear sac The tears flow from the tear duct to the common lacrimal duct, to the tear sac, then from the tear sac to the nasolacrimal duct and finally to the nasal cavity. Once the nasolacrimal duct is blocked, the tears will not flow to the nasal cavity and cause continuous tearing of the eyes, and some patients can develop chronic dacryocystitis secondary to bacterial infection. For the treatment of chronic dacryocystitis, ophthalmology routinely adopts “nasolateral lacrimal sac nasal mucosal anastomosis”, which has more disadvantages, such as residual skin scarring on the head and face that affects appearance. The “transnasal endoscopic lacrimal sac nasal opening and drainage” adopted by the optometric hospital changes the traditional treatment concept and innovatively applies the minimally invasive nasal endoscopic surgical technique, which can be successfully completed by making a small nasal mucosal incision and biting off a very thin layer of bone wall under the direct view of the nasal cavity. According to Associate Professor Wu Wencan, compared with the traditional external nasal incision tear sac nasal mucosal anastomosis, there is no head and facial scar and can maintain the original beauty of the eye tear sac area, no damage to the large blood vessels in the inner corner of the eye, small trauma, fast postoperative recovery and other advantages. It is reported that the surgery patient only needs to be hospitalized for three days and the cost is about 3000 RMB. The Optometry Hospital is a leader in the diagnosis and treatment of traumatic optic neuropathy, orbital disease, and lacrimal obstructive disease at home and abroad using the most advanced nasal endoscopic minimally invasive surgical techniques available.