title: [The ocular optic fiber used in the endoscopic sinus surgery of dacryocystorhinostomy in the treatment of chronic dacryocystitis and recurrent dacryocystitis].
abstract: OBJECTIVE
  To explore a method for locating the area of lacrimal sac in dacryocystorhinostomy under endoscopy.
  
  
  METHODS
  Sixty-eight patients were performed dacryocystorhinostomy under endoscopy. Take light spot of ocular optic fiber as the lacrimal sac projection to the lateral wall of the nasal cavity position.
  
  
  RESULTS
  With the guiding of ocular optic fiber, lacrimal sac can be located accurately. The operating time of dacryocystorhinostomy under endoscopy was shortened significantly, and the operation procedure was simplified. All patients were followed up for 2 years, only 2 recurrent cases were found. The success rate reach to 97.06% (66/68).
  
  
  CONCLUSIONS
  Ocular optical fiber used in locating the lacrimal sac in dacryocystorhinostomy under endoscopy is simple and feasible, and can be widely used.
authors.affiliation: Department of Otorhinolaryngology, First Hospital of Yunnan Province, Kunming 650032, China.
authors.forename: Yang
authors.initials: Y
authors.lastname: Huang
authors.forename: Hequn
authors.initials: H
authors.lastname: Jiang
authors.forename: Xiaoguang
authors.initials: X
authors.lastname: He
authors.forename: Jun
authors.initials: J
authors.lastname: Yang
authors.forename: Chunchun
authors.initials: C
authors.lastname: Cai
authors.forename: Lin
authors.initials: L
authors.lastname: Zhang
authors.forename: Benming
authors.initials: B
authors.lastname: Qi
mesh_terms: D000328:Adult; D003607:Dacryocystitis / Q000601:surgery*; D003608:Dacryocystorhinostomy / Q000379:methods*; D004724:Endoscopy; D005260:Female; D005336:Fiber Optic Technology; D006801:Humans; D008297:Male; D008875:Middle Aged; D009301:Nasolacrimal Duct / Q000601:surgery; D012008:Recurrence; D016896:Treatment Outcome