What factors guide the decision to proceed with trabeculectomy in a patient with advanced glaucoma who retains good central vision?  

You have to ask yourself, what is your IOP goal? What is the superior conjunctival status? What is your experience with trabeculotomy surgery? Axial myopia or hyperopia, age, and race of the patient will all affect the outcome of the filtration procedure. If your IOP goal is single digits, trab with...