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Title: Argon versus selective laser trabeculoplasty
Authors: Van de Veire, S ×
Zeyen, Thierry
Stalmans, Ingeborg #
Issue Date: May-2006
Series Title: Bulletin de la Société belge d'ophtalmologie issue:299 pages:5-10
Abstract: PURPOSE: To compare conventional argon laser trabeculoplasty (ALT) with selective laser trabeculoplasty (SLT) in terms of their efficiency in lowering the intra-ocular pressure. METHODS: In this retrospective study, 56 eyes from 44 patients with primary open angle glaucoma, ocular hypertension, pseudo-exfoliative (PXF) or pigment dispersion glaucoma (PDG) were included. Patients underwent either ALT (n=18) or SLT (n=38). The intraocular pressure (IOP) was measured immediately prior to and 3 to 5 weeks after the theraPY. RESULTS: At 3 to 5 weeks the lOP-reduction was 22.4% after ALT and 15.5% after SLT (p = 0.141). Of note, of the four patients with PDG 2 underwent ALT and 2 SLT. Remarkably, both patients who had had SLT showed a paradoxical rise in lOP after the procedure (+15.5%). When these patients were excluded from the analysis, a similar hypotensive efficacy was found between ALT (-19%) and SLT (-17.9%) (p = 0.836). A small additional study with lower energy levels (< 0.9 mJ) confirmed the paradoxical IOP rise in 6 patients with heavily pigmented angles (2 with PDG and 2 with PXF) (+19.2%). It occurred in the absence of steroid treatment and persisted until 12 weeks after treatment. CONCLUSIONS: The short term efficacy of ALT and SLT was similar. In this study, the patients with PDG who underwent SLT showed a paradoxical rise in IOR This finding may indicate that even lower energies (0.4 to 0.6 mJ) are required when performing SLT in patients with heavily pigmented trabeculae.
ISSN: 0081-0746
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Research Group Ophthalmology
× corresponding author
# (joint) last author

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