Canadian journal of ophthalmology. Journal canadien d'ophtalmologie · 2017
Selective laser trabeculoplasty for primary open-angle glaucoma patients younger than 40 years.
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Gupta Viney, Ghosh Sarbani, Sujeeth M, Chaudhary Sunil, Gupta Shikha, Chaurasia Abadh Kishore, Sihota Ramanjit, Gupta Amisha, Kapoor Kulwant Singh
Аннотация
OBJECTIVE: To evaluate the efficacy of selective laser trabeculoplasty (SLT) among patients with juvenile-onset primary open-angle glaucoma (JOAG).
METHODS: Patients diagnosed with JOAG who were not controlled on medical therapy were offered a trial of SLT. The patients were followed up prospectively for 1, 3, 6, and 12 months postlaser to evaluate the efficacy of SLT as second-line therapy. Success was defined as an intraocular pressure (IOP) reduction of ≥20% at 12 months without the need for further medication, laser, or surgery. Factors associated with success/failure, prelaser IOP, age, and angle dysgenesis on gonioscopy were analysed.
RESULTS: The average prelaser IOP in these JOAG eyes (n = 30) was 25.3 ± 6.5 mm Hg, which reduced to 17.3 ± 5.8 mm Hg at 12 months (p = 0.01). All patients were of Indian ethnicity. Out of 30 eyes, at 12 months post-SLT, 13 (43%) eyes had at least a 20% reduction in IOP. In the eyes that achieved success, the average reduction of IOP was 37.6%. There was no difference in the prelaser IOP between those with success (25.5 ± 5.6 mm Hg) and those that failed (25.1 ± 8 mm Hg; p = 0.8), nor was there a difference in the mean age between successful cases (34.4 ± 9.4 years) and failures (31.6 ± 8.9 years; p = 0.4). However, those without angle dysgenesis were 4 times (CI 1.1-15.2) more likely to succeed with SLT than those with angle dysgenesis (p = 0.03).
CONCLUSIONS: A significant proportion of patients with JOAG can benefit from an IOP reduction after SLT. Those with gonioscopically normal-appearing angles are more likely to respond to SLT.
METHODS: Patients diagnosed with JOAG who were not controlled on medical therapy were offered a trial of SLT. The patients were followed up prospectively for 1, 3, 6, and 12 months postlaser to evaluate the efficacy of SLT as second-line therapy. Success was defined as an intraocular pressure (IOP) reduction of ≥20% at 12 months without the need for further medication, laser, or surgery. Factors associated with success/failure, prelaser IOP, age, and angle dysgenesis on gonioscopy were analysed.
RESULTS: The average prelaser IOP in these JOAG eyes (n = 30) was 25.3 ± 6.5 mm Hg, which reduced to 17.3 ± 5.8 mm Hg at 12 months (p = 0.01). All patients were of Indian ethnicity. Out of 30 eyes, at 12 months post-SLT, 13 (43%) eyes had at least a 20% reduction in IOP. In the eyes that achieved success, the average reduction of IOP was 37.6%. There was no difference in the prelaser IOP between those with success (25.5 ± 5.6 mm Hg) and those that failed (25.1 ± 8 mm Hg; p = 0.8), nor was there a difference in the mean age between successful cases (34.4 ± 9.4 years) and failures (31.6 ± 8.9 years; p = 0.4). However, those without angle dysgenesis were 4 times (CI 1.1-15.2) more likely to succeed with SLT than those with angle dysgenesis (p = 0.03).
CONCLUSIONS: A significant proportion of patients with JOAG can benefit from an IOP reduction after SLT. Those with gonioscopically normal-appearing angles are more likely to respond to SLT.