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Abstract
To provide 4-year data on the efficacy and safety of gonioscopy-assisted transluminal trabeculotomy (GATT) in patients with open-angle glaucoma.Retrospective case series.Eyes of patients >18 years of age who underwent GATT by a single surgeon at Wills Eye Hospital with at least 36 months follow-up.Postoperative changes in outcome measures including intraocular pressure (IOP), medication use and visual acuity were recorded. Failure was defined as IOP > 21mmHg or less than 20% reduction below baseline at any postoperative visit after three months, or need for further glaucoma surgery.Main outcome measures were failure rate, IOP, number of glaucoma medications, and visual acuity at 4 years.59 patients (74 eyes), age 57.1±18.5 years (37.8% female) underwent the GATT procedure. Average follow-up was 47.0±6.7 months (range 35.6 to 76.5 months). Mean IOP was 27.0±10.0 mmHg preoperatively and 14.8±6.5 mmHg at 4 years (45% IOP decrease; P<0.01). Mean number of medications decreased from 3.2±1.0 preoperatively to 2.3±1.0 at 4 years (P< 0.01). The cumulative failure rate at 4 years was 53.9%, and the cumulative reoperation rate was 42.0%. No significant differences between patients with primary open-angle glaucoma and other types of glaucoma were found.GATT can be a safe and effective conjunctival-sparing surgery for in treating various forms of open-angle glaucoma at 4 years.
View details for DOI 10.1016/j.ogla.2023.01.005
View details for PubMedID 36702382