The main surgical steps of composite trabeculectomy are: lid opening and fixation of the eyeball, anesthesia to separate the conjunctival flap, creation of the scleral flap, use of medication for anti-scarring, removal of the trabeculae, removal of the iris, suturing of the scleral flap and the conjunctival flap, anterior chamber shaping, and removal of the fixation sling. 1. Lid opening using lid opener, anti-inflammatory bulbar conjunctival sac such as povidone-iodine, saline rinsing of bulbar conjunctival sac and fixation of the eyeball using traction sling. 2. Anesthesia was administered using an anesthetic such as lidocaine, and the conjunctival flap was separated using surgical instruments such as dentate temporal and conjunctival scissors. 3. Bleeding foci on the scleral surface are coagulated using mild electrocoagulation prior to creating the scleral flap. The scleral flap was created by cutting through the interscleral fibers using a special knife. 4. Anti-scarring treatment with mitomycin or fluorouracil to prevent postoperative scarring. 5. Anterior chamber puncture is performed using surgical instruments to remove the deep corneoscleral tissue. 6. Microscopic scissors are used to remove the iris tissue in the peripheral area, and then the iris is restored. 7. The scleral flap is repositioned and sutured, and scleral flap filtration is evaluated. The conjunctival flap is then sutured. 8. Balanced saline is injected into the anterior chamber to restore the anterior chamber. 9. Remove the hanging wires used to immobilize the eye. These are the steps of composite trabeculectomy.