1. Types
1.1. Valved
1.1.1. Ahmed glaucoma valve
1.1.2. Krupin
1.2. Non Valved
1.2.1. Molteno
1.2.2. Beavalt
1.2.3. AADI
1.2.4. Paul glaucoma implant
1.2.5. Ahmed Cleopat
1.2.6. ExPress shunt
1.3. MIGS
1.3.1. Trabecular micro-bypass stent (ab-interno)
1.3.1.1. i-stent Hydrus Microstent XEN GEL Implant
1.3.2. Suprachoroidal space
1.3.2.1. Cypass microstent
1.3.3. Subconjunctival space
1.3.3.1. InnFocus Microshunt
2. Indications
2.1. Primary open-angle glaucoma Congenital glaucoma Aphakic glaucoma Glaucoma and corneal transplant Neovascular glaucoma Traumatic glaucoma Uveitic glaucoma Angle-closure glaucoma Glaucoma and aniridia Glaucoma and Sturge-Weber syndrome Glaucoma and ICE syndrome Glaucoma and contact lens dependence Glaucoma and epithelial ingrowth Glaucoma and severe surface disease (chemical burns, pemphigoid)
3. Complication
3.1. Early Post Op
3.1.1. Hypotony
3.1.1.1. Prevention
3.1.1.1.1. Internal Tube Occlusion (Stent
3.1.1.1.2. External Tube Occlusion ( Ligature)
3.1.1.1.3. Two Stage procedure
3.1.1.2. Management
3.1.1.2.1. Conservative- If AC maintained
3.1.1.2.2. Viscoelastic injection - If shallow AC with lenticular touch
3.1.1.2.3. Steroids & Cycloplegic - If choroidal effusions
3.1.1.2.4. Close leak if any
3.1.1.2.5. Explant AGV in Valve Malfunction
3.1.2. Infection
3.1.2.1. Treat with antibiotics
3.1.3. Conjunctival retraction
3.1.3.1. Suture back
3.1.3.2. Conjunctival graft
3.1.4. Choroidal effusion/hemorrhage
3.1.4.1. Steroids & Cycloplegic - If choroidal effusions
3.1.4.2. Drainage of CD if persistent
3.1.5. Tube blockage (iris, Vitreous, Blood, fibrin)
3.1.5.1. Tube flashing
3.1.5.2. YAG Laser
3.1.5.3. Vitrectomy in retained vitreous
3.1.5.4. Plasminogen activator to dissolve clot
3.2. Late Post Op
3.2.1. Corneal decompensation
3.2.1.1. Trime the tube
3.2.1.2. Sulcus tube placement
3.2.1.3. Implant explantation
3.2.2. Late hypotony
3.2.3. Hypertensive phase
3.2.3.1. Start ant glaucoma medications
3.2.3.2. Bleb needling with MMC or 5FU injection
3.2.4. Implant exposure
3.2.4.1. Conjuctival suture or graft
3.2.4.2. Scleral patch
3.2.5. Infection
3.2.5.1. Antibiotics
3.3. Inta OP
3.3.1. Scleral perfuration
3.3.1.1. Suture
3.3.1.2. Scleral patch
3.3.2. Hemorrhage
3.3.2.1. Do good hemostasis
3.3.2.2. Maintain the AC well formed true the surgery
3.3.3. Posterior implant loss
3.3.3.1. Extensive dissention and implant recovering