Glaucoma Surgery

Glaucoma Surgery Outcomes

Change in IOP at 3- to 12-Month Follow-Up (N = 987)


Trab = trabeculectomy, CPC = cyclophotocoagulation + micropulse, GATT = gonioscopy-assisted transluminal trabeculectomy, IOP = intraocular pressure

ᵃHydrus was combined with phacoemulsification

In patients treated at the institute during 2022, trabeculectomy reduced IOP from a mean of 14.57 mm Hg to 13.08 mm Hg, glaucoma implant surgery reduced IOP from a mean of 25.38 mm Hg to 15.52 mm Hg, and cyclophotocoagulation reduced IOP from 30.6 mm Hg to 17.04 mm Hg. For the newer procedures, goniotomy reduced IOP from 17.37 mm Hg to 16.11 mm Hg, and GATT reduced IOP from 22.72 mm Hg to 16.03 mm Hg. The two newer procedures whose outcomes have been tracked for the past 2 years showed a reduction in mean IOP from 15.99 mm Hg to 14.95 mm Hg (hydrus); and 19.87 mm Hg to 10.59 mm Hg (Xen G). We have not taken into consideration pre and post-op medications. A normal range of IOP is approximately 10 mm Hg to 21 mm Hg. N = number of patients who returned for a follow-up visit and had IOP measured.