Glaucoma is a common condition that damages the optic nerve as it exits the eye. Glaucoma surgery can be performed to lessen the risk of additional optic nerve damage.
Glaucoma refers to a group of diseases that cause damage to the optic nerve as it leaves your eye, resulting in eyesight loss.
Glaucoma surgery is a treatment used to lower eye pressure in order to stabilize vision and prevent future vision loss caused by glaucoma. This is performed by either establishing a new aperture for fluid to flow from the eye or by implanting a shunt to assist with fluid drainage.
No – this is an important point to understand before considering surgery. Glaucoma surgery cannot cure glaucoma, and it cannot restore vision that’s already been lost. Its purpose is to protect your remaining vision by lowering eye pressure and slowing or stopping further optic nerve damage, not to reverse damage that’s already occurred.
This is why early diagnosis and consistent treatment matter so much – the goal of any glaucoma treatment, including surgery, is to preserve the vision you currently have for as long as possible. Some research has explored whether certain surgical techniques might modestly improve visual function in specific cases, but this isn’t a guaranteed or typical outcome, and it shouldn’t be the reason to pursue surgery. If you’re told you need glaucoma surgery, it’s worth having a clear conversation with your ophthalmologist about what the procedure can and can’t realistically achieve for your specific situation.
Laser surgery is the most often recommended surgical option for many surgeons for treating glaucoma. It is a procedure that can be performed in a clinic or at your doctor’s office. It is a technique that does not necessitate overnight hospitalization. This means you may undergo the treatment and then safely return home to resume your life.
Laser surgery uses a strong laser beam to remove fluid from your eyes. There are several types of laser therapy. They include:
Your vision may be a bit hazy immediately following the therapy. It may also be a bit painful. The doctor will assess your eye pressure in a few hours. To keep your eye pressure under control following laser surgery, you may need to continue taking your prescriptions.
This procedure is often used to treat open-angle glaucoma. It is usually performed in a hospital and takes less than an hour.
The surgeon will make a small incision at the top of your eye. The gap will be hidden behind your eyelid, where no one can see it. This hole allows extra fluid in your eye to drain, decreasing ocular pressure.
You will usually be awake throughout this procedure, but you will be given numbing medication as well as medication to help you relax.
This operation is used to treat glaucoma of several forms, including congenital glaucoma, neovascular glaucoma, and glaucoma induced by an injury. It is performed in a hospital and typically takes 1 to 2 hours.
During this procedure, the surgeon inserts a small tube, known as a shunt, into the white area of your eye. The tube allows excess fluid to flow from your eye, decreasing your intraocular pressure.
If you have moderate glaucoma, your doctor may advise you to undergo minimally invasive glaucoma surgery (MIGS). This reduces eye strain as well, but it has fewer dangers and adverse effects and allows you to recover faster. There are several forms of MIGS, so ask your doctor whether MIGS is a possibility for you.
Glaucoma surgery, like any other procedure, can have negative consequences. For example, your eye may get puffy and painful for a period of time.
Other side effects associated with glaucoma surgery include cataracts, corneal complications (the clear front layer of your eye), too little eye pressure, loss of vision
Discuss the pros and cons of each type of surgery with your doctor before making the final decision. You and your doctor can work together to develop an ideal treatment plan for you.
Recovery time varies depending on the specific procedure. Less invasive options like MIGS typically involve a quicker visual recovery, since they don’t significantly alter the eye’s structure. More traditional surgeries, such as trabeculectomy, may involve a more noticeable pressure drop initially or temporary blurriness related to healing. Most people notice improvement within days to a few weeks, though the exact timeline depends on factors like the severity of your glaucoma, other medications you’re taking (such as blood thinners), and how your eye responds to surgery.
Blurry vision in the treated eye is common in the first few days and generally improves gradually. Redness, irritation, mild swelling, tearing, or a sensation of something in the eye are also common temporary symptoms. Significant pain is uncommon after glaucoma surgery – if you do experience notable discomfort, contact your eye doctor rather than waiting it out.
What to avoid after surgery:
Your ophthalmologist will give you specific, personalised guidance based on your procedure – general advice like this is a starting point, not a substitute for your surgeon’s instructions.
No. Glaucoma surgery can’t cure the condition or restore vision already lost – it’s used to lower eye pressure and help protect your remaining vision from further damage.
The main categories are laser surgery (SLT, ALT, LPI, cyclophotocoagulation), trabeculectomy, glaucoma drainage implant surgery, and minimally invasive glaucoma surgery (MIGS).
Most patients don’t experience significant pain, though some temporary discomfort, redness, or blurry vision is common in the days following surgery.
The recovery time following glaucoma surgery varies based on the procedure. Because less intrusive techniques, such as minimally invasive glaucoma surgery (MIGS), do not drastically alter the structure or shape of the eye, visual recovery can be swift. More typical operations can result in significant pressure drops or blurriness due to astigmatism caused by suturing.
However, the severity of glaucoma and other competing variables, such as blood thinners or the eye’s response to the surgery, might hinder recovery. Most patients see improvement in their eyesight in the days to weeks following surgery. For some patients, a month-long recovery is possible, though extremely rare.
During the first healing phase, hazy vision in the operated eye is usual. Your vision will improve over the next several days and weeks. Other frequent transient eye symptoms following surgery include redness, irritation, swelling, tearing, and the sensation of having a little item in your eye.
The majority of patients who have glaucoma surgery do not suffer substantial pain. If you do experience eye discomfort, you should visit your eye doctor about the best ways to treat it.
Avoid the activities, such as running, straining, bending, or lifting, during the first several weeks after surgery for operations when the ocular pressure is low.
You should also avoid the following actions, which might lead to bacterial infection:
Glaucoma surgery – whether laser treatment, trabeculectomy, a drainage implant, or a minimally invasive option – works by lowering pressure inside the eye to protect your remaining vision, not to cure glaucoma or restore vision already lost. Each type of surgery comes with its own benefits, risks, and recovery timeline, and the right choice depends on your specific diagnosis and eye health. If you’ve been told you may need glaucoma surgery, a detailed conversation with your ophthalmologist about your options – and what realistically to expect – is the best next step.
Have concerns about your eye health or glaucoma symptoms? Consult a doctor through the MaNaDr app to discuss your symptoms and get guidance on next steps, including a referral to an ophthalmologist if needed.
