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Lookup NU author(s): Nicholas Wride, Michael Birch, Professor Francisco FigueiredoORCiD
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© 2019 Wolters Kluwer Health, Inc. All rights reserved. Précis:This is a retrospective study with long-term follow-up using transscleral cyclodiode laser photocoagulation (TCP) with low complication rate and good graft survival and intraocular pressure (IOP) control. Selective 180-degree TCP may offer a good IOP control with reduced complication rates.Purpose:To study the long-term safety and efficacy of contact TCP in eyes with refractory glaucoma after penetrating keratoplasty (PKP).Patients and Methods:All consecutive patients who were treated with TCP for refractory glaucoma following PKP between March 1996 and February 2017 in a tertiary corneal transplantation service in the United Kingdom. Only patients with a follow-up of 5 years were included. Eligible patients were identified through the corneal transplantation service database. Medical records and database data were retrospectively analyzed and compared at 5 years from baseline.Results:In total, 28 eyes of 28 patients presented with a mean IOP of 30.4 mm Hg (SD, 7.5) at baseline despite maximally tolerated topical and systemic antiglaucoma medications. IOP was reduced significantly to 12.8 mm Hg (SD, 3.6) (P<0.0001) at 5 years with 100% of patients with a successfully controlled IOP (defined as ≤21 mm Hg). All patients had a clear graft at the beginning of the study period and at 5 years 60.7% (n=17) still presented clear grafts. The average number of topical glaucoma medication was reduced from 2.8 (SD, 0.8) to 1.7 (SD, 1.2) (P=0.019) at 5 years. Visual acuity remained stable in 67.9% of patients at 5-year endpoint. No complications (ie, hypotony or phthisis bulbi) were reported during the study period and the corneal graft failure rate remained low at 5 years (39.3%).Conclusions:Cyclodiode laser treatment with initial selective 180-degree protocol seems to be an efficient therapeutic option in the management of patients with refractory glaucoma post-PKP when compared with other surgical alternatives. A selective 180-degree protocol seems to potentially reduce the rate of complications. Further randomized controlled studies are needed to compare outcomes with modified treatment's protocols and glaucoma drainage device.
Author(s): Tabibian D, Wride N, Birch M, Figueiredo FC
Publication type: Article
Publication status: Published
Journal: Journal of Glaucoma
Year: 2019
Volume: 28
Issue: 5
Pages: 440-446
Print publication date: 01/05/2019
Online publication date: 01/05/2019
Acceptance date: 16/01/2019
ISSN (print): 1057-0829
ISSN (electronic): 1536-481X
Publisher: Lippincott Williams and Wilkins
URL: https://doi.org/10.1097/IJG.0000000000001205
DOI: 10.1097/IJG.0000000000001205
PubMed id: 30720572
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