title: A Comparison of Resident-performed Argon and Selective Laser Trabeculoplasty in Patients With Open-angle Glaucoma.
abstract: OBJECTIVE
  To compare intraocular pressure (IOP) reduction and complications of resident-performed argon laser trabeculoplasty (ALT) and selective laser trabeculoplasty (SLT).
  
  
  METHODS
  This was a retrospective, interventional, comparative case series performed at the San Francisco Veterans Affairs Hospital. The study included 77 patients each undergoing 1 resident-performed ALT procedure from April 2006 through November 2009, and 81 patients each undergoing 1 resident-performed SLT procedure from November 2009 through December 2011. Reduction in IOP at 12 months and a longitudinal analysis across 24 months was determined. Secondary outcomes investigated included additional interventions of either repeat trabeculoplasty or trabeculectomy as well as change in eye drop medications.
  
  
  RESULTS
  There was no evidence of a difference between IOP reductions in patients undergoing ALT compared with SLT at 12 months (P=0.41, linear modeling) or across all follow-up appointments (P=0.62, linear-mixed effects regression). Patients undergoing ALT had a significantly increased number of eye drops (+0.6 vs. -0.1 drops, P<0.001, Wilcoxon rank-sum test) and trend toward increased rates of additional interventions (P=0.06, Weibull regression). There was no difference in immediate postprocedure IOP rise between the 2 groups (P=0.75, Wilcoxon rank-sum test) or any evidence of change in visual acuity.
  
  
  CONCLUSIONS
  We found no difference in IOP reduction between patients undergoing resident-performed ALT compared with SLT. However, patients undergoing ALT had a significant increase in eye drop medications and trend toward additional interventions compared with patients undergoing SLT.
authors: *Department of Ophthalmology ‡Francis I. Proctor Foundation §Department of Epidemiology and Biostatistics, Division of Preventive Medicine and Public Health, University of California San Francisco ∥Department of Ophthalmology, San Francisco Veterans Affairs Medical Center, San Francisco, CA †Department of Ophthalmology, Oregon Health and Science University, Portland, OR.
authors: Eugene A
authors: EA
authors: Lowry
authors: Daniel A
authors: DA
authors: Greninger
authors: Travis C
authors: TC
authors: Porco
authors: Ayman
authors: A
authors: Naseri
authors: Robert L
authors: RL
authors: Stamper
authors: Ying
authors: Y
authors: Han
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000959:Antihypertensive Agents / Q000008:administration & dosage; D002983:Clinical Competence; D004503:Education, Medical, Graduate / Q000592:standards*; D005260:Female; D005902:Glaucoma, Open-Angle / Q000503:physiopathology / Q000601:surgery*; D006801:Humans; D007396:Internship and Residency; D007429:Intraocular Pressure / Q000502:physiology; D007431:Intraoperative Complications; D053685:Laser Therapy / Q000379:methods*; D054020:Lasers, Gas / Q000627:therapeutic use*; D008297:Male; D008875:Middle Aged; D009885:Ophthalmology / Q000193:education*; D011183:Postoperative Complications; D012086:Reoperation; D012189:Retrospective Studies; D014129:Trabecular Meshwork / Q000601:surgery; D014130:Trabeculectomy / Q000193:education / Q000379:methods*; D016896:Treatment Outcome; D014792:Visual Acuity / Q000502:physiology
chemical_list: D000959:Antihypertensive Agents