Ahmed glaucoma valve with scleral patch graft and cataract extraction

Abstract

In patients with both cataract and uncontrolled glaucoma, the ophthalmologist may choose to treat both conditions in the same operative encounter. Combined cataract extraction, IOL implantation, and glaucoma shunt surgery offers the patient visual rehabilitation, better control of glaucoma, and the benefit of not having to return to the OR for a second procedure. Additionally, patients with scarred, friable, or otherwise compromised conjunctival tissue may benefit from the use of a glaucoma shunt device, as their conjunctiva may not be viable for creation of a trabeculectomy bleb. As well, there has been an increase in the number of glaucoma shunts implanted primarily in patients. The use of a valved implant such as the Ahmed glaucoma valve has been shown to offer more immediate IOP control and lower risk of complications as compared to non-valved implants (i.e., Baerveldt).