Abstract #94939 Published in IGR 22-2

Long-Term Outcomes of Selective Laser Trabeculoplasty for Open-Angle Glaucoma in the Caribbean

Realini T; Shillingford-Ricketts H; Burt D; Balasubramani GK
American Journal of Ophthalmology 2021; 232: 83-89

See also comment(s) by Gus Gazzard

PURPOSE: To characterize long-term clinical outcomes of monotherapy selective laser trabeculoplasty (SLT) in Afro-Caribbean patients with open-angle glaucoma (OAG). DESIGN: This was a post hoc analysis of nearly 8 years (median, 3.2; interquartile range, 2.1-7.1) of pooled data from the West Indies Glaucoma Laser Study and its preliminary study. METHODS: Setting: Three eye care practices in Saint Lucia and Dominica. PARTICIPANTS: Afro-Caribbean adults with mild-moderate OAG treated with ≤2 medications (61 in preliminary study, 72 in West Indies Glaucoma Laser Study). INTERVENTION: Participants underwent medication washout, baseline intraocular pressure (IOP) determination, and bilateral 360-degree SLT. Participants were followed for up to 94 months. Repeat SLT was performed according to prespecified criteria. MAIN OUTCOME MEASURES: The primary outcome was mean IOP reduction from baseline. The secondary outcome was medication-free survival with SLT repeated as needed. RESULTS: The pooled data set included 265 eyes of 133 Afro-Caribbean participants. The mean (standard deviation) baseline IOP was 21.2 (3.4) and 21.2 (3.9) mmHg in right and left eyes, respectively. Over 8 years, the mean IOP ranged from 12.8 to 15.7 mm Hg and from 13.1 to 15.8 mm Hg, respectively (P < .0001 for every comparison with baseline). The median medication-free survival time for initial SLT was 85.4 months in both eyes. The 94-month medication-free survival of SLT repeated as needed was 71.2% and 71.7%, respectively. CONCLUSIONS: Monotherapy SLT, repeated as needed, safely provides significant IOP reductions in most Afro-Caribbean adults with primary OAG through nearly 8 years of follow-up and has significant potential to delay or prevent glaucoma-related vision loss in black patients in low-resource regions.

Department of Ophthalmology and Visual Sciences, West Virginia University Eye Institute, Morgantown, West Virginia, USA (T.R.). Electronic address:

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12.4 Laser trabeculoplasty and other laser treatment of the angle (Part of: 12 Surgical treatment)

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