title: Trabeculectomy in patients with primary angle-closure glaucoma.
abstract: OBJECTIVE
  To analyze the results of trabeculectomy in patients with primary angle-closure glaucoma.
  
  
  METHODS
  A retrospective and noncomparative case series analysis was performed on data from Taiwan, from 2001 to 2004. The outcomes of trabeculectomy in eyes with acute primary angle-closure glaucoma attack (AACG) and those with chronic primary angle-closure glaucoma (CACG) were assessed in terms of final intraocular pressure (IOP), changes to visual acuity, and the incidence of complications.
  
  
  RESULTS
  A total of 52 eyes of 52 patients, 15 patients in AACG group and 37 patients in CACG group, were reviewed. The mean follow-up period was 32 months (range, 26-42 mo). In terms of no visual acuity change after surgery, there were significant differences between the CACG and AACG groups (P=0.02, Fisher exact test). In terms of final IOP control, trabeculectomy outcome was significantly worse in patients in the AACG group than those in the CACG group (P<0.01, Fisher exact test). Moreover, the complication of bleb encapsulation appeared more frequently in the AACG group than in the CACG group (P=0.02, Fisher exact test).
  
  
  CONCLUSIONS
  Compared with CACG, trabeculectomy may not be as good for patients of AACG, because it may lead to worsened visual acuity; it also seems to present a greater failure rate, more complications, and fewer cases of surgical survival.
authors.affiliation: Department of Ophthalmology, Tri-Service General Hospital, Taipei, Taiwan.
authors.forename: Yi-Hao
authors.initials: YH
authors.lastname: Chen
authors.forename: Da-Wen
authors.initials: DW
authors.lastname: Lu
authors.forename: Jen-Hao
authors.initials: JH
authors.lastname: Cheng
authors.forename: Jiann-Torng
authors.initials: JT
authors.lastname: Chen
authors.forename: Ching-Long
authors.initials: CL
authors.lastname: Chen
mesh_terms: D000208:Acute Disease; D005260:Female; D015812:Glaucoma, Angle-Closure / Q000503:physiopathology / Q000601:surgery*; D006801:Humans; D007429:Intraocular Pressure / Q000502:physiology; D007431:Intraoperative Complications; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications; D012189:Retrospective Studies; D014065:Tonometry, Ocular; D014130:Trabeculectomy; D016896:Treatment Outcome; D014792:Visual Acuity / Q000502:physiology