title: Efficacy of non-penetrating trabecular surgery for open angle glaucoma: a meta-analysis.
abstract: BACKGROUND
  Non-penetrating trabecular surgery is a new filtrating surgery without opening in ternal trabecular structures. This study was to estimate the overall efficacy of non-penetrating trabecular surgery for open angle glaucoma.
  
  
  METHODS
  The published articles selected for this study were obtained by a computerised Medline and China Biological Medicine Disk search of the literature and a manual search of the bibliographies of relevant articles. Articles meeting the inclusion criteria were reviewed systematically, and the reported data were aggregated using the statistical techniques of meta-analysis.
  
  
  RESULTS
  A total of 37 articles were included in the meta-analysis. The pooled complete success rates of non-penetrating trabecular surgery with different techniques were: deep sclerectomy single, 69.7% (95% CI: 58.5% - 81.0%); deep sclerectomy with collagen implant, 59.4% (95% CI: 47.0% - 71.8%); deep sclerectomy with reticulated hyaluronic acid implant, 71.1% (95% CI: 56.8% - 85.3%); and viscocanalostomy, 72.0% (95% CI: 57.6% - 86.4%). The overall weighted complete success rate of non-penetrating trabecular surgery was 67.8% (95% CI: 61.4% - 74.3%).
  
  
  CONCLUSIONS
  Non-penetrating trabecular surgery is the best available therapy method for medically uncontrolled open angle glaucoma with a complete success rate of over 60%. But the different techniques cannot belie the complete success rate of non-penetrating trabecular surgery.
authors.affiliation: Department of Ophthalmology, Changzheng Hospital, Second Military Medical University, Shanghai 200003, China.
authors.forename: Jin-wei
authors.initials: JW
authors.lastname: Cheng
authors.forename: Xiao-ye
authors.initials: XY
authors.lastname: Ma
authors.forename: Rui-li
authors.initials: RL
authors.lastname: Wei
mesh_terms: D018463:Filtering Surgery / Q000379:methods*; D005902:Glaucoma, Open-Angle / Q000601:surgery*; D006801:Humans; D007429:Intraocular Pressure; D012599:Sclerostomy; D014130:Trabeculectomy