title: Brinzolamide 1% versus apraclonidine 0.5% to prevent intraocular pressure elevation after neodymium:YAG laser posterior capsulotomy.
abstract: OBJECTIVE
  To compare the efficacy of brinzolamide 1% with that of apraclonidine 0.5% in preventing intraocular pressure (IOP) rise after neodymium:YAG (Nd:YAG) laser posterior capsulotomy.
  
  
  METHODS
  Department of Ophthalmology, Akdeniz University, Antalya, Turkey.
  
  
  METHODS
  One hundred fifteen patients who had Nd:YAG laser posterior capsulotomy for posterior capsule opacification were prospectively randomized to receive brinzolamide 1% (57 patients) or apraclonidine 0.5% (58 patients) approximately 1 hour before laser surgery. A masked observer measured IOP by Goldmann applanation tonometry before treatment and after treatment at 1, 2, and 3 hours and 7 days.
  
  
  RESULTS
  The mean IOP changes from baseline were not statistically different between the study groups at 1, 2, and 3 hours and 7 days (P =.109, P = .764, P =.275, and P =.879, respectively). The incidence of IOP elevation of 5 mm Hg or higher was 12.2% (7 of 57 eyes) in the brinzolamide group and 10.3% (6 of 58 eyes) in the apraclonidine group (P = .743); IOP elevations of 10 mm Hg and greater occurred in 3.5% (2 of 57 eyes) and 1.7% (1 of 58 eyes) (P = .618), respectively. There were no IOP elevations greater than 20 mm Hg in either group.
  
  
  CONCLUSIONS
  Brinzolamide 1% and apraclonidine 0.5% given prophylactically before Nd:YAG laser capsulotomy were effective in preventing IOP spikes after treatment.
authors.affiliation: Department of Ophthalmology, Akdeniz University Medical Faculty, Antalya, Turkey. drmustafaun@hotmail.com
authors.forename: Mustafa
authors.initials: M
authors.lastname: Unal
authors.forename: Iclal
authors.initials: I
authors.lastname: Yücel
authors.forename: Yusuf
authors.initials: Y
authors.lastname: Akar
mesh_terms: D000316:Adrenergic alpha-Agonists / Q000627:therapeutic use*; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002257:Carbonic Anhydrase Inhibitors / Q000627:therapeutic use*; D003000:Clonidine / Q000031:analogs & derivatives* / Q000627:therapeutic use; D004311:Double-Blind Method; D005260:Female; D006801:Humans; D007429:Intraocular Pressure / Q000187:drug effects*; D053685:Laser Therapy / Q000009:adverse effects*; D007903:Lens Capsule, Crystalline / Q000473:pathology / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D009798:Ocular Hypertension / Q000209:etiology / Q000517:prevention & control; D009883:Ophthalmic Solutions / Q000627:therapeutic use; D011183:Postoperative Complications / Q000517:prevention & control; D011292:Premedication; D011446:Prospective Studies; D013449:Sulfonamides / Q000627:therapeutic use*; D013843:Thiazines / Q000627:therapeutic use*; D014065:Tonometry, Ocular
chemical_list: D000316:Adrenergic alpha-Agonists; D002257:Carbonic Anhydrase Inhibitors; D009883:Ophthalmic Solutions; D013449:Sulfonamides; D013843:Thiazines; C016986:apraclonidine; C111827:brinzolamide; D003000:Clonidine