Trabeculectomy Surgery in Delhi, India

Trabeculectomy is a surgical procedure used to treat glaucoma, an eye condition caused by increased pressure inside the eye that can damage the optic nerve and lead to vision loss. The surgery works by creating a new drainage channel for fluid in the eye, allowing it to flow out more easily and lowering eye pressure. It is usually recommended when medications or laser treatments are no longer effective in keeping the pressure under control.

Since vision loss from glaucoma cannot be reversed, the main goal of trabeculectomy is to prevent further damage to the optic nerve and preserve the patient’s remaining sight. By reducing eye pressure, the procedure helps slow or stop the progression of the disease, protecting long-term vision and maintaining quality of life.

Days before Trabeculectomy

During the days before the operation, patients usually undergo a series of eye tests and a general health evaluation to ensure they are fit for the procedure. Doctors may also review current medications and advise stopping certain ones, such as blood thinners, to reduce risks during surgery. Clear instructions are provided on using prescribed eye drops, fasting if required, and preparing for the day of the operation. Patients are encouraged to ask questions so they feel fully informed and confident.

On the Day of Trabeculectomy

On the day of surgery, patients are admitted to the hospital and guided through the pre-operative process, which includes final paperwork, basic health checks, and meeting the surgical and anaesthesia teams. The eye is carefully numbed using local anaesthesia, often combined with mild sedation to keep the patient comfortable and relaxed during the procedure.

During the surgery, the ophthalmic surgeon creates a small drainage channel in the eye to allow fluid to escape, reducing intraocular pressure and helping protect the optic nerve. The operation typically lasts under an hour, and patients remain awake but comfortable throughout. After the procedure, the eye is protected with a shield or patch, and patients are closely monitored for a few hours before being allowed to go home the same day or, in some cases, the next.

In selected cases, our surgeons may use minimally invasive or modified trabeculectomy techniques. These approaches involve smaller incisions, use of specialised microsurgical instruments, or implantation of tiny devices to improve fluid drainage. Such techniques can help reduce scarring, lower the risk of complications, and support faster recovery while still effectively controlling eye pressure.

Post-Procedure Care

At home, recovery continues under the doctor’s guidance. Patients are typically prescribed antibiotic and anti-inflammatory eye drops to prevent infection and support healing. It is important to avoid rubbing the eye, lifting heavy objects, or strenuous activity for the first few weeks. Regular follow-up visits are scheduled to monitor eye pressure and ensure the new drainage channel is working properly. Temporary blurred vision is common, but it usually improves as the eye heals. With proper care, most patients return to normal activities within a few weeks.

While trabeculectomy is generally considered safe, it is important for patients to be aware of the potential risks, which are now much lower because of the advancements in eye surgery.

• Infection: The eye may become infected after surgery, though this is rare and usually preventable with prescribed eye drops.
• Bleeding: Minor bleeding inside the eye can occur but is typically manageable.
• Scarring of the drainage site: If scar tissue forms where the new channel is created, it may block fluid drainage and reduce the success of the surgery.
• Too much fluid drainage (hypotony): In some cases, the eye pressure may drop too low, which can affect vision.
• Vision changes: Some patients notice blurred or reduced vision temporarily, while in rare cases, permanent vision loss may occur.
• Cataract formation: Trabeculectomy can sometimes speed up the development of cataracts. 

At Max Hospitals, these risks are carefully managed through advanced surgical planning and close post-operative monitoring. Our experienced surgeons use state-of-the-art technology to ensure precision, giving patients the confidence that their safety is our highest priority.

Choosing the right hospital can make a significant difference in the success of trabeculectomy and overall recovery. If you, or a loved one, are planning to undergo trabeculectomy, here is why you must consider us.

• Highly Experienced Ophthalmic Surgeons: Our eye surgeons are highly skilled in glaucoma management and trabeculectomy procedures, performing each surgery with precision to protect and preserve vision.They have performed many revision surgeries and complicated cases are referred from world over to them.
• State-of-the-Art Technology: We use advanced microsurgical instruments and imaging systems that allow for highly accurate, minimally invasive procedures, reducing complications and promoting faster recovery.
• Comprehensive Patient Care: From detailed pre-surgery assessments to careful post-operative monitoring and at-home recovery guidance, our team supports patients at every step of their journey.
• Patient-Centred Approach: We prioritise clear communication, reassurance, and tailored care plans, ensuring patients and their families feel confident and informed throughout the process.
• Proven Track Record: With years of experience and numerous successful glaucoma surgeries, Max Hospitals has built a reputation for high-quality outcomes and exceptional patient satisfaction.

How long does a trabeculectomy procedure usually take?

Most trabeculectomy surgeries are completed within 1–2 hours, depending on the complexity of the case.

Is trabeculectomy performed under general or local anaesthesia?

The procedure is typically done under local anaesthesia with sedation, allowing the patient to remain comfortable while awake.

Will I feel pain during or after the surgery?

Discomfort during surgery is minimal due to anaesthesia. Mild soreness or irritation after surgery is common and can be managed with prescribed eye drops and pain relief.

How soon will I notice improvement in eye pressure?

Most patients may start to see a reduction in eye pressure within the first few days after surgery. However, the full effect of trabeculectomy is usually evaluated over several weeks as the eye heals and stabilises. Your ophthalmologist will monitor your progress closely and adjust your care to ensure the best possible outcome.

Can I have both eyes treated at the same time?

Trabeculectomy is usually performed on one eye at a time to reduce risk and allow proper monitoring of each eye’s recovery.

How long will I need to use eye drops after surgery?

Patients typically continue using antibiotic and anti-inflammatory drops for several weeks. Your surgeon will give precise instructions based on your progress.

Are there any restrictions on activities after trabeculectomy?

Patients are advised to avoid heavy lifting, bending, or strenuous activity for a few weeks. Normal activities can usually resume gradually as healing progresses.

Will trabeculectomy prevent glaucoma completely?

Trabeculectomy lowers eye pressure to slow or stop progression, but ongoing monitoring is essential. Some patients may still need medication after surgery.

How often should I attend follow-up appointments?

Follow-ups are frequent in the first few weeks and may gradually decrease as your eye stabilizes. Early detection of complications ensures the best long-term outcomes.

Can trabeculectomy be repeated if needed?

In some cases, if the initial surgery is not fully effective, a repeat procedure or an alternative glaucoma surgery may be considered.

Do I need to follow special precautions during travel after surgery?

After trabeculectomy, it’s important to avoid strenuous activity and situations that could increase eye pressure. Short trips are generally safe once your doctor confirms you’re ready, but long flights, high-altitude travel, or areas with limited medical access may require extra precautions. Your doctor will provide personalised guidance to keep your eyes safe while travelling.

How will trabeculectomy affect my vision long-term?

Trabeculectomy is designed to protect your vision by lowering eye pressure and preventing further damage to the optic nerve. Most patients maintain their vision or experience improvement over time. Temporary blurriness is common during the healing phase, but vision usually stabilises as the eye recovers. Regular check-ups help ensure lasting results and early detection of any changes.

Reviewed by Dr. Anita Sethi, Principal Director & HOD(Max Panchsheel Park) – Cataract, Lasik and Oculoplasty, Eye Care / Ophthalmology, on 17 December 2025.