Glaucoma Drainage Device (GDD) Implantation in Post Trabeculectomy Patients Ida Ayu Prama Yanthi1*, I Gusti Ayu Ratna Suryaningrum2, Ni Kompyang Rahayu3, and I Made Agus Kusumadjaja2 Abstract Objective: This study aims to report a case of Glaucoma Drainage Device (GDD) implant surgery in a patient who experienced an increase in