Many patients with glaucoma will need surgery during their lifetime, and classical surgery has risks and a significant failure rate. Micro-invasive glaucoma surgeries (MIGS) aim to decrease the complication rate while decreasing intraocular pressure (IOP). Gonioscopy-assisted transluminal trabeculotomy (GATT) is a conjunctiva-sparing approach to decrease IOP that strives to enhance the natural physiological outflow from the eye. We describe GATT’s surgical technique, indications, contraindications, and possible role among other glaucoma surgeries.
