Gonioscopy Assisted Transluminal Trabeculotomy:A Boon to Developing Nations-A Systematic Review

Abstract

Purpose: To systematically review surgical procedure, safety and efficacy of Gonioscopy-Assisted Transluminal Trabeculotomy (GATT).

Methods: A review of literature was done to analyze all suitable articles from two different databases.

Results: GATT is effective in reducing intraocular pressure and mean number of medications from baseline. It is associated with minimal complications when compared to ab-externo procedures. It has shorter learning curve and can be performed as primary surgical procedure in moderate-to-severe case of open-angle glaucomas.

Conclusion: GATT is a minimally invasive surgical procedure for the management of primary and secondary open-angle glaucoma in both adults and children. The advantages of GATT are ab-interno approach, access to open entire natural drainage system, good safety profile and efficacy comparable to trabeculectomy. It can be performed with both illuminated micro-catheter and suture, out of which suture GATT is cost-effective, which is a boon to developing nations.

Keywords: GATT, Trabeculotomy, Open angle glaucoma, MIGS, Ginioscopic assisted.