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Gonioscopy-assisted transluminal trabeculotomy: Passing the right way decoding suture.
Devendra Maheshwari1, Shivam Gupta1, Techi D Tara1
1Department of Glaucoma Services, Aravind Eye Hospital, Tirunelveli, Tamil Nadu, India.
Indian Journal of Ophthalmology
|October 3, 2022
Summary
Gonioscopy-assisted transluminal trabeculotomy (GATT) is a safe, blebless glaucoma surgery. This minimally invasive procedure offers effective intraocular pressure lowering with fewer complications than traditional trabeculectomy.
Area of Science:
- Ophthalmology
- Surgical Innovation
- Glaucoma Management
Background:
- Trabeculectomy, a common glaucoma surgery, carries risks of vision-threatening and bleb-related complications.
- Minimally invasive glaucoma surgeries (MIGS) offer a safer alternative, bridging the gap between medical/laser therapy and traditional surgery.
- Gonioscopy-assisted transluminal trabeculotomy (GATT) is a prominent MIGS procedure known for its safety and efficacy.
Purpose of the Study:
- To demonstrate the transluminal novel trabeculotomy technique.
- To facilitate video-based skill transfer for novice surgeons in GATT procedures.
Main Methods:
- Detailed surgical steps of GATT are depicted for primary open-angle glaucoma and secondary glaucoma.
- The ab interno approach allows visualization of the trabecular meshwork and collector system.
- A Prolene suture is used to cleave the entire trabecular meshwork in a sutureless, blebless manner.
Main Results:
- GATT is a blebless and sutureless procedure with adequate intraocular pressure-lowering effects.
- The procedure preserves healthy conjunctiva and avoids bleb-related complications and postoperative hypotony.
- Positive postoperative outcomes are associated with the visualization of an open collector system (trabecular shelf).
Conclusions:
- GATT is a safe and effective glaucoma surgery with a short learning curve.
- It can be combined with cataract surgery, minimizing patient morbidity and recovery time.
- The cost-effectiveness of GATT has significant implications for glaucoma care, especially in developing countries.
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