Types Of Glaucoma Surgery
1) Laser Trabeculoplasty: (Selective laser trabeculoplasty/ Argon laser trabeculoplasty): This laser treatment improves fluid drainage through the filtration tissue called the trabecular meshwork of the eye. It assists in lowering the intraocular pressure and is mostly utilized in open-angle glaucoma.
2) Laser Peripheral Iridotomy (LPI): A small hole is made in the iris using a laser to improve the fluid flow between the chambers of the eye. This method is mainly utilized to provide therapy for or prevent angle-closure glaucoma.
3) Cyclophotocoagulation: A laser is utilized to decrease the activity of the ciliary body, the part of the eye that generates fluid. This helps reduce fluid production and decreases the pressure in the eye.
4) Cyclocryotherapy: This therapy utilizes controlled freezing to moderately destroy the ciliary body. It decreases fluid production in the eye and helps in controlling severe glaucoma.
5) Trabeculectomy: A small channel for drainage is surgically created in the eye to allow excess fluid to escape. This reduced the intraocular pressure and is one of the most commonly utilized glaucoma surgeries.
6) Goniotomy: A small cut is made in the trabecular meshwork utilizing a specialized lens and surgical tool. This assists in improving fluid drainage and is commonly utilized in pediatric glaucoma.
7) Deep Sclerectomy: A non-penetrating surgery that removes part of the scleral tissue to create a filtration space. It helps in decreasing the eye pressure while decreasing complications.
8) Viscocanalostomy: A gel-like substance is injected into the eye’s drainage canal to widen it. This improves the outflow of fluid and decreases the intraocular pressure.
9) Canaloplasty: A microcatheter is utilized to open and expand the eye’s natural canal for drainage. This improves the circulation of fluid and decreases eye pressure without creating a filtering bleb.
10)Gonioscopy-Assisted Transluminal Trabeculotomy (GATT): A minimally invasive technique where a micro-catheter is passed through the drainage canal to open it completely, thus naturally improving the fluid outflow.
11)Minimally Invasive Glaucoma Surgery: These techniques use microscopic tools or implants to increase fluid drainage with minimal tissue damage. This method usually offers quick recovery and fewer complications.
12)iStent (MIGS Implant): is a small medical device that is implanted into the eye’s drainage system to improve the fluid outflow. It helps to decrease intraocular pressure in the eye with mild to moderate glaucoma.
13) BANG/Micro-Trabeculotomy: Bent Ab-interno needle Goniectomy (BANG) utilizes a fine needle to open the trabecular meshwork. This improves aqueous fluid drainage and decreases pressure in the eye.
14) Glaucoma Drainage Implant/ Tube Shunt Surgery: A small tube device is inserted to redirect fluid from the eye to an external reservoir. This assists in controlling eye pressure in difficult or advanced glaucoma cases.
15) Ahmed Glaucoma Valve Implant: Is a special valve device inserted to regulate fluid drainage and maintain controlled eye pressure. It is mostly used in complex or refractory glaucoma.
16) Baerveldt Glaucoma Implant: This implant provides a larger drainage plate to improve long-term fluid outflow from the eye. It is commonly utilized in severe and advanced glaucoma.
17) Bleb Needling: Is a minor method and is performed post-trabeculectomy if scar tissue blocks the drainage bleb. It also helps in restoring proper drainage of fluid.
18) Bleb Revision Surgery: This surgery corrects or reconstructs a failed drainage bleb after previous glaucoma surgery. It assists in retaining effective fluid drainage and controlling eye pressure.
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