title: Effectiveness of apraclonidine in preventing the rise in intraocular pressure after neodymium:YAG posterior capsulotomy.
abstract: Apraclonidine (para-aminoclonidine) is an alpha agonist that was studied for its effect on the IOP rise following YPC. In a prospective multicentered double-masked study 63 eyes were pretreated with one drop of either 1% apraclonidine or placebo 1 hour prior to performing YAG and again after the laser treatment. The greatest IOP rise in the placebo-treated eyes occurred in the third hour after YPC when the mean IOP rose from a baseline pressure of 16.4 +/- 3.7 mm Hg to 20.8 +/- 6.8 mm Hg (P less than .01). In apraclonidine-treated eyes the IOP fell from a mean of 15.6 +/- 3.8 mm Hg to 12.8 +/- 6.0 mm Hg 3 hours postoperatively (P less than .001). There were five times as many eyes that had a pressure rise greater than 10 mm Hg in the placebo-treated group compared to those treated with apraclonidine. Apraclonidine proved to be highly effective in preventing the rise in IOP following YPC.
authors.affiliation: Wilmer Ophthalmology Institute, Department of Ophthalmology, Johns Hopkins University, Baltimore.
authors.forename: I P
authors.initials: IP
authors.lastname: Pollack
authors.forename: R H
authors.initials: RH
authors.lastname: Brown
authors.forename: A S
authors.initials: AS
authors.lastname: Crandall
authors.forename: A L
authors.initials: AL
authors.lastname: Robin
authors.forename: R H
authors.initials: RH
authors.lastname: Stewart
authors.forename: G L
authors.initials: GL
authors.lastname: White
mesh_terms: D000287:Administration, Topical; D000368:Aged; D003000:Clonidine / Q000031:analogs & derivatives* / Q000494:pharmacology; D005260:Female; D005901:Glaucoma / Q000188:drug therapy; D006801:Humans; D007429:Intraocular Pressure / Q000187:drug effects*; D053685:Laser Therapy; D007903:Lens Capsule, Crystalline / Q000601:surgery*; D007908:Lens, Crystalline / Q000601:surgery*; D008297:Male; D013997:Time Factors; D014065:Tonometry, Ocular
chemical_list: C016986:apraclonidine; D003000:Clonidine