title: Pneumatic trabeculoplasty versus argon laser trabeculoplasty in primary open-angle glaucoma.
abstract: To compare the efficacy of pneumatic trabeculoplasty (PNT) and argon laser trabeculoplasty (ALT) in primary open-angle glaucoma (POAG) uncontrolled with two topical therapies.
  
  
  
  In a randomized, prospective clinical study, 32 patients received in 1 eye PNT or ALT.
  
  
  
  At 1 month, in PNT- and in ALT-treated eyes respectively, mean intraocular pressure (IOP) decreased by 3 +/- 2.3 and 5.7 +/- 1.7 mm Hg (12.7 +/- 9.6 and 24.4 +/- 7.4%, both paired t test p < 0.001); 5 and 13 eyes (31 vs. 81%, chi(2) test p = 0.013) had an IOP reduction >or=20%, 7 and 1 eyes had an insufficient effect (IOP >20 mm Hg). Only 1 PNT-treated eye had IOP reduction >or=20% until 4 months. At 6 months, 10 ALT-treated eyes (62.5%) had IOP reduction >or=20%; 15 PNT- and 3 ALT-treated eyes had an insufficient effect (94 vs. 19%, p < 0.001). Transient anterior segment side effects, but not visual field or fundus changes, occurred after both treatments.
  
  
  
  PNT is less effective than ALT in POAG uncontrolled with two topical therapies.
authors.affiliation: Institute of Ophthalmology, University of Catania, Catania, Italy.
authors.forename: M G
authors.initials: MG
authors.lastname: Uva
authors.forename: A
authors.initials: A
authors.lastname: Longo
authors.forename: M
authors.initials: M
authors.lastname: Reibaldi
mesh_terms: D000368:Aged; D000959:Antihypertensive Agents / Q000627:therapeutic use; D005260:Female; D005500:Follow-Up Studies; D005902:Glaucoma, Open-Angle / Q000188:drug therapy / Q000601:surgery*; D006801:Humans; D007429:Intraocular Pressure; D054020:Lasers, Gas; D008297:Male; D011183:Postoperative Complications; D011446:Prospective Studies; D012029:Refraction, Ocular; D014130:Trabeculectomy / Q000009:adverse effects / Q000295:instrumentation* / Q000379:methods*; D014794:Visual Fields
chemical_list: D000959:Antihypertensive Agents