Sila Bal, MD, MPH, welcomes Iqbal Ike K. Ahmed, MD, FRCSC, in the first of a two-part episode to review a case of a 68-year-old man with a history of primary open-angle glaucoma who experienced progression of a visual field defect and glaucomatous optic neuropathy. Dr. Ahmed shares insights into when to proceed with incisional surgery in these patients and discusses relative contraindications and potential complications of performing trabeculectomy. He also discusses how earlier intervention with minimally invasive techniques has changed the glaucoma surgery field.