Trabeculectomy surgery, also called surgical trabeculectomy or glaucoma filtration surgery, is the most commonly performed glaucoma surgery worldwide. Although modern glaucoma eye drops have reduced the need for surgery, many patients with uncontrolled eye pressure (IOP) still require this procedure. Trabeculectomy for glaucoma helps preserve vision by creating a new pathway for fluid to drain out of the eye.
In a trabeculectomy procedure, the surgeon makes a tiny flap in the sclera (the white part of the eye) and creates a small drainage channel. This allows excess fluid inside the eye to escape into a space beneath the conjunctiva (the thin transparent covering of the eyeball).
As the fluid collects under the conjunctiva, a small blister-like bubble forms, called a bleb. This controlled drainage lowers the eye pressure.
By creating this new drainage outlet, trabeculectomy reduces intraocular pressure (IOP) and prevents further optic nerve damage caused by glaucoma.
Trabeculectomy surgery time is usually 30–45 minutes. It is performed under local anaesthesia, meaning you will be awake but your eye will be numb and comfortable.
Trabeculectomy glaucoma surgery has a high success rate, especially in patients with advanced glaucoma who no longer respond to medications. Success depends on age, type of glaucoma, and post-surgery care. With proper follow-up, the surgery can control eye pressure for many years. However, in some patients, repeat surgery may be needed after 5–10 years.
| Treatment | How It Works | When Recommended | Advantages | Limitations |
| Trabeculectomy | Creates new drainage pathway for fluid | Moderate to severe glaucoma, uncontrolled on drops | Long-lasting pressure control | Risk of complications, requires follow-up |
| Trabeculotomy | Opens natural drainage channels inside eye | Congenital glaucoma or selected adults | Less invasive | May not lower pressure enough |
| Laser Surgery (Trabeculoplasty/Iridotomy) | Improves natural drainage of fluid | Early to moderate glaucoma | Outpatient, quick recovery | Effect may wear off over time |
| Drainage Devices (Tubes/Shunts) | Places artificial tube to drain fluid | When trabeculectomy fails or is unsuitable | Useful in complex cases | More invasive, higher cost |
| Aspect | Eye Drops | Trabeculectomy Surgery |
| Convenience | Daily lifelong use | One-time procedure |
| Effectiveness | Works well in early stages | Works best when drops fail |
| Side Effects | Redness, allergies, systemic effects | Surgical risks but no daily drops |
| Cost (long-term) | Ongoing expense | One-time cost |
Like any eye surgery, trabeculectomy complications can occur:
The trabeculectomy surgery cost in India varies depending on the hospital, surgeon’s expertise, and whether it is combined with cataract surgery. On average, the cost ranges between ₹20,000 – ₹60,000 per eye. At Eye Solutions, we provide transparent and affordable packages.
DNB, FAEH (Glaucoma), FAICO (Glaucoma), FICO (UK), FRCS (Glasgow)
Glaucoma Specialist
Cataract Specialist
No. Trabeculectomy controls eye pressure but does not cure glaucoma. Regular monitoring is still needed.
The average trabeculectomy surgery time is 30–45 minutes.
The success rate is high, especially when patients follow post-operative instructions carefully. Many patients enjoy stable pressures for 5–10 years or longer.
Fluctuating eye pressure, cataract progression, and risk of infection are the most common trabeculectomy complications.
Most patients can return to light activities in 2–3 weeks, but complete recovery may take up to 6–8 weeks. Driving should only be resumed after the doctor’s approval.
Yes, many health insurance policies cover glaucoma surgery trabeculectomy.
Initially, every 2–3 days in the first week, then weekly for a month, followed by longer intervals.
Maintain hygiene, avoid water exposure, apply eye drops as instructed, and attend all follow-ups.
Some patients may still need minimal drops, but many can stop or reduce their dependence on glaucoma medications.
On average, between ₹20,000 – ₹60,000 per eye, depending on hospital and city.
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