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Trans-scleral selective laser trabeculoplasty (SLT) without a gonioscopy lens

Poster Details

First Author: N.Geffen ISRAEL

Co Author(s):    S. Ofir   M. Belkin                 

Abstract Details


To evaluate the efficacy of direct application of SLT irradiation to the perilimbal area.


A prospective, randomized, masked, controlled clinical trial.


Patients with uncontrolled open angle and pseudoexfoliation glaucoma who were candidates for laser trabeculoplasty were enrolled to the study. The controls underwent conventional SLT with 100 spots delivered using a gonioscopy lens for 360° of the trabecular meshwork. The study group underwent trans-scleral irradiation using the same parameters. Applications were administered at the peri-limbal area.


Mean (± SD) pre-treatment IOP: 20.21±3.19 mmHg for the study group (n=14) and 21.14± 2.98 mmHg for the controls (n=14), (P= .434), dropping to 15.50±3.77 (n=14) and 15.00±4.08 (n = 14), (P = .744) and 16.00±1.88 (n = 7) and 14.3± 2.77 (n = 11), (P =0.375) after 6 and 12 months, respetively [Mann Whitney]. Success (≥15% reduction at 6 months with no additional medications/interventions) was achieved in 12 (85.7%) study patients and 9 (69.2%) controls (P = .385). Complications were mild and transient although significantly higher in the controls (P.0001).


The results suggest that SLT applied directly to the peri-limbal sclera is as efficacious as the conventional procedure.

Financial Disclosure:


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