We report a patient who presented with endocapsular capsule tension ring (CTR) in iridocorneal angle leading to secondary angle closure glaucoma (ACG) and subsequent removal of the CTR from trabeculectomy ostium. Secondary ACG was diagnosed 2 years and 6 months after cataract surgery in which a CTR was used for zonular instability. CTR removal with trabeculectomy was performed, after which there was the resolution of symptoms. To the best of our knowledge, this is the first case report in which CTR was removed from trabeculectomy ostium. We describe a surgical technique to explant CTR and combining with trabeculectomy.