Ab externo technique eases implantation of Xen gel stent

In this column, Dr. Radcliffe describes his ab externo technique for implanting the Xen gel stent, thus eliminating the need for the prism and for changing the microscope and patient’s head positions. However, continued long-term studies can help further establish the safety and efficacy of this procedure.
Thomas “TJ” John, MD OSN Surgical Maneuvers Editor
The Xen gel stent (Allergan) has been in our hands for several years and is a familiar procedure on the short list of stand-alone MIGS options.
The device has been valuable for helping my patients achieve target pressures,