title: Ab interno trabecular bypass surgery with Trabectome for open angle glaucoma.
abstract: BACKGROUND
  Glaucoma is the leading cause of irreversible blindness. Minimally invasive surgical techniques, such as ab interno trabecular bypass surgery, have been introduced to prevent glaucoma progressing.
  
  
  OBJECTIVE
  The main objective was to assess the results at two years of ab interno trabecular bypass surgery with Trabectome for open angle glaucoma in comparison to conventional medical, laser, or surgical treatment in terms of efficacy and safety. A secondary objective was to examine the effects of Trabectome surgery in people who have concomitant phacoemulsification in comparison to those who do not have concomitant phacoemulsification.
  
  
  METHODS
  We searched CENTRAL (which contains the Cochrane Eyes and Vision Trials Register) (2016, Issue 4), Ovid MEDLINE, Ovid MEDLINE In-Process and Other Non-Indexed Citations, Ovid MEDLINE Daily, Ovid OLDMEDLINE (January 1946 to May 2016), EMBASE (January 1980 to May 2016), the ISRCTN registry (www.isrctn.com/editAdvancedSearch), ClinicalTrials.gov (www.clinicaltrials.gov), and the World Health Organization (WHO) International Clinical Trials Registry Platform (ICTRP) (www.who.int/ictrp/search/en). We did not use any date or language restrictions in the electronic searches for trials. We last searched the electronic databases on 12 May 2016.
  
  
  METHODS
  We included only randomised controlled trials (RCTs) of ab interno trabecular bypass surgery with Trabectome.
  
  
  METHODS
  We planned to have two review authors independently extract data from reports of included studies using a data collection form.
  
  
  RESULTS
  One randomised controlled trial identified from ClinicalTrials.gov, NCT00901108, met the criteria for inclusion. This study has subsequently been terminated. The ClinicalTrials.gov record indicates that the investigators plan to complete 12 months of follow-up and analysis on 19 participants already recruited into the trial.
  
  
  CONCLUSIONS
  There is currently no high-quality evidence for the outcomes of ab interno trabecular bypass surgery with Trabectome for open angle glaucoma. Properly designed RCTs are needed to assess the long-term efficacy and safety of this technique.
authors.affiliation: Moorfields Eye Hospital NHS Foundation Trust, 162 City Road, London, UK.
authors.forename: Kuang
authors.initials: K
authors.lastname: Hu
authors.forename: Gus
authors.initials: G
authors.lastname: Gazzard
authors.forename: Catey
authors.initials: C
authors.lastname: Bunce
authors.forename: Richard
authors.initials: R
authors.lastname: Wormald
mesh_terms: D005902:Glaucoma, Open-Angle / Q000601:surgery*; D006801:Humans; D018918:Phacoemulsification; D016032:Randomized Controlled Trials as Topic; D014129:Trabecular Meshwork / Q000601:surgery*; D014130:Trabeculectomy / Q000295:instrumentation* / Q000379:methods