Date	Event	Description
13 March 2023	New search has been performed	Updated search on studies comparing three devices only: Ex‐PRESS shunts, XEN GelStent, and PreserFlo MicroShunt.
13 March 2023	New citation required and conclusions have changed	Inclusion criteria for the update revised, not affecting search strategies. In the current updates of this review, we included the Ex‐PRESS shunt, XEN GelStent, and PreserFlo MicroShunt, which are the major devices available to patients in the current US or EU market. We excluded some devices assessed in the previous review (i.e. silicone tube implant, SOLX Gold Shunt, Ologen, amniotic membrane, expanded polytetrafluoroethylene (ePTFE), and Gelfilms) as they are no longer in current use combined with trabeculectomy or they are adjuvant materials rather than devices.