The most common type of glaucoma affecting our Phoenix, Arizona, patients is called chronic glaucoma, or primary open-angle glaucoma (POAG). In a normally operating eye, fluid called aqueous humor continually flows through the eye, eventually exiting through tissue known as the trabecular meshwork. In an eye affected by chronic glaucoma, this meshwork becomes blocked or clogged and fluid is unable to flow out of the eye. Intraocular pressure increases, pushing against the optic nerve and causing peripheral vision loss.
P: I developed glaucoma this year secondary to five retinal-related surgeries several years ago. There are tissue problems, and I’ve developed a wound leak, which may necessitate removal of my Ahmed shunt if the leak does not stop. (Another shunt is not an option in my case due to scarring.) My doctor at Duke Eye Center wants me to think about TCP “just in case,” but my research indicates that ECP may be a better choice, despite being incisional. [Note: TCP stands for transscleral cyclophotocoagulation; ECP stands for endoscopic cyclophotocoagulation.]