Glaucoma Surgery

About Glaucoma Surgery

Glaucoma is the second most common cause of irreversible blindness in the United States, after age-related macular degeneration. While visual loss from glaucoma cannot be reversed, adequate control of intraocular pressure (IOP) can halt or slow the progressive loss of vision.

Medications such as eye drops can help patients avoid the need for laser treatment or surgery, but these entail long-term cost and some potential for local and systemic side effects. Laser treatment for glaucoma is generally quick, safe, and convenient, but in many patients it has only a relatively small effect in reducing IOP and the effect may wear off over time. For some patients, surgery to control IOP, and prevent glaucoma progression, is the best option.

Glaucoma implants, trabeculectomies, iStent® trabecular micro-bypass, and cyclophotocoagulation are the mainstays of glaucoma surgery at Cole Eye Institute. In addition, newer procedures being performed are goniotomy and gonioscopy-assisted transluminal trabeculectomy (GATT).

Volume of All Glaucoma Surgeries

2015 - 2018

GATT = gonioscopy-assisted transluminal trabeculectomy

During 2018, the trend for fewer trabeculectomies and glaucoma implant surgeries continued, as did the increase in the numbers of newer procedures such as iStent, cyclophotocoagulation, goniotomy and GATT. In particular, the number of goniotomies performed (with or without cataract surgery) has increased dramatically, from 102 in 2017 to 178 in 2018. Results will be tracked going forward to see if this pattern continues.

Volume of Trabeculectomy and Glaucoma Implant Surgeries

2015 – 2018

Volume of iStent, Cyclophotocoagulation, Goniotomy, and GATT

2015 – 2018

CPC = cyclophotocoagulation, GATT = gonioscopy-assisted transluminal trabeculectomy