Gonioscopy-assisted transluminal trabeculotomy (GATT)
GATT (Gonioscopy-Assisted Transluminal Trabeculotomy) is a MIGS technique that was first reported in 2014 as a modification of trabeculotomy with a clear corneal ab-interno approach instead of the traditional conjunctival ab-externo entry (Grover et al., 2014). After entry into the anterior chamber (AC), an i-Track catheter (Ellex) is entered through TM into SC and passed for 360 degrees, then pulled to excise TM and unroof SC.
Watch a video of GATT surgery. Video Link: https://youtu.be/VXPOZtIhpnk
Read more about the GATT procedure in an article in EyeWorld, entitled, “Shedding Light on GATT.” Click the link: https://www.eyeworld.org/article-shedding-light-on-gatt