Anti-inflammatory therapy after selective laser trabeculoplasty: a randomized, double-masked, placebo-controlled clinical trial.
Jinapriya Delan,D'Souza Mark,Hollands Hussein,El-Defrawy Sherif R,Irrcher Isabella,Smallman Donald,Farmer James P,Cheung John,Urton Todd,Day Andrew,Sun Xiaoquin,Campbell Robert J
Ophthalmology
PURPOSE:To investigate the effect of anti-inflammatory therapy on selective laser trabeculoplasty (SLT) outcomes. DESIGN:Randomized, double-masked, placebo-controlled trial. PARTICIPANTS:Patients with primary open-angle or pseudo-exfoliation glaucoma. METHODS:Patients undergoing SLT were randomized to receive placebo (artificial tears), prednisolone acetate 1%, or ketorolac tromethamine 0.5% eye drops 4 times per day for 5 days commencing immediately after SLT. MAIN OUTCOME MEASURES:Change in intraocular pressure (IOP) from baseline to the 1-month post-SLT visit. RESULTS:Mean change in IOP at the 1-month primary outcome time point, as well as all other time points, was not significantly different among groups (P = 0.99). Likewise, a repeated-measures, mixed-effects model did not find significant differences in IOP outcome at the 1-month time point (P = 0.95). The IOP was reduced in all groups at the 1-month post-SLT time point and all other time points, and no significant differences were found between groups using separate unadjusted cross-sectional analyses of variance (P > 0.15 for analyses at all time points). Treatment failure rates were not different among groups (P = 0.75), and at 1 year after SLT, the percentage of patients maintaining a 20% IOP reduction ranged from 18% to 22% in the 3 study groups. CONCLUSIONS:Anti-inflammatory therapy after SLT does not seem to substantially influence the IOP-lowering effect of SLT. In this study of patients with low baseline IOP, SLT showed limited efficacy in achieving a sustained reduction in IOP.
10.1016/j.ophtha.2014.07.017
Intraocular pressure-lowering medications and long-term outcomes of selective laser trabeculoplasty.
Woo David M,Healey Paul R,Graham Stuart L,Goldberg Ivan
Clinical & experimental ophthalmology
BACKGROUND:To investigate the effects of current intraocular pressure-lowering medications on the efficacy of selective laser trabeculoplasty. DESIGN:Retrospective chart review of records from an urban glaucoma clinic in Sydney, Australia. PARTICIPANTS:Patients who received their first selective laser trabeculoplasty between 2002 and 2005 were studied (grouped from 0 to 3 according to the number of pre-selective laser trabeculoplasty medications, and followed for 5 years). Those with previous argon laser therapy, trabeculectomy or angle-closure were excluded. METHODS:Selective laser trabeculoplasty (Ellex) used to deliver 180 or 360 degree of treatment, under the same protocol. MAIN OUTCOME MEASURES:Responders were defined by ≥20% reduction from baseline intraocular pressure. Data were censored when pressure-lowering intervention was required. The mean intraocular pressure, survivor, response rate, number and type of medications were compared. RESULTS:There were 206 patients with ocular hypertension, primary, pseudo-exfoliation, or pigmentary glaucoma who used none (n = 20), one (n = 33), two (n = 61) or three or more (n = 92) pre-selective laser trabeculoplasty topical anti-glaucoma medications. The mean baseline intraocular pressures for each group was 23.7, 22.2, 20.7 and 20.4 mmHg, respectively (P = 0.061). Post-treatment mean intraocular pressure was 17.9, 17.7, 15.5, and 15.7 mmHg; percentage reduction was similar between groups (23.6-25.6%, P = 0.20). Kaplan-Meier survival analysis showed comparable survival rates across groups (P = 0.445). At 60 months, 11.1, 17.1, 30.5 and 11.5% of responders remained in each group. Higher proportions of patients in groups 2 and 3 required further laser or surgery. CONCLUSION:The number of pre-selective laser trabeculoplasty medications did not affect the intraocular pressure-lowering effectiveness of selective laser trabeculoplasty; however, groups on more medications required more pressure-lowering interventions.
10.1111/ceo.12452