Gonioscopy-assisted transluminal trabeculotomy (GATT) is an effective and safe surgical option for managing intraocular pressure (IOP) in patients who have previously experienced failures with other glaucoma surgeries, according to a study.
The retrospective study evaluated the efficacy of GATT in 30 eyes of patients who had previously undergone unsuccessful glaucoma surgeries. All participants had open angles on gonioscopy and experienced failure with prior glaucoma interventions.
The study found that GATT significantly reduced IOP from an average of 27.1 mm Hg to 16.9 mm Hg over 15 months.
Success rates varied, with a complete success rate of 20% at 1 year based on IOP criteria of 16 mm Hg and 82% for an IOP criterion of 21 mm Hg. Qualified success rates were 57% and 82% at 1 year, respectively.
The average age of patients was 51.8 years, and risk factors for failure included older age. Of note, 46% of eyes experienced hyphema, though this condition resolved without intervention in all cases.
Reference
Siddhartha S, Krishnamurthy R, Dikshit S, Garudadri C, Ali MH, Senthil S. Outcomes of Gonioscopy-Assisted Transluminal Trabeculotomy in Eyes With Prior Failed Glaucoma Surgery. J Glaucoma. 2024;33(8):612-617. doi: 10.1097/IJG.0000000000002414. Epub 2024 May 6. PMID: 39141408.
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