Low Pressure, Leaks and Infection After Glaucoma Surgery: What Your Team Watches For

Three days after her operation, Marta sits at the kitchen table with a cup of tea she has not touched. The eye feels scratchy, the vision is a little foggier than it was yesterday, and the discharge nurse’s words keep circling: “If anything changes, call us.” But what counts as a change? Is this the surgery settling, or the beginning of something?

That question sits at the heart of glaucoma surgery complications. The operations that lower eye pressure work by deliberately creating a new path for fluid to escape the eye. Done well, that path is a quiet, lifelong gift. Occasionally it drains too freely, springs a leak, or lets bacteria in. Surgeons know this, which is why the weeks after surgery are so heavily scheduled with checks.

What follows is a plain account of what those checks are looking for, why low pressure can matter as much as high pressure, and which changes deserve a phone call today rather than at the next appointment.

What are glaucoma surgery complications, and why is success measured in pressure?

Glaucoma is a group of conditions in which the optic nerve, the cable carrying images from the eye to the brain, is slowly damaged, most often because the fluid pressure inside the eye is too high for that particular nerve to tolerate. Every treatment, from drops to laser to surgery, shares one goal: bring the pressure down to a level the nerve can live with, and keep it there.

Surgery is usually considered when drops and laser have not achieved that, or cannot be tolerated, according to the NHS and Mayo Clinic. Because the operation does not repair nerve fibers that are already lost, its purpose is protection of what remains rather than restoration of sight. That reframes the word “complication.” A postoperative problem is anything that either threatens the pressure target or threatens vision through a separate route, such as infection.

Three problems dominate the early weeks, and they are the ones this article is built around:

• Pressure that falls too low, known as hypotony, which can distort the retina and blur vision.
• A leak from the surgical drainage site, which lets fluid escape uncontrolled and opens a door for bacteria.
• Infection, which is rare but can move fast inside the eye.

Other issues exist, and later sections will name them, including bleeding, scarring that closes the new drain too early, and cataract formation over the following years. Yet pressure, leaks and infection are what fill the surgeon’s checklist at the one-day, one-week and one-month visits. Understanding them turns a vague instruction to “watch for problems” into something concrete a person can actually do.

How glaucoma surgery works: building a new drain for the eye

The eye is constantly making a clear fluid called aqueous humor, which nourishes the lens and cornea before draining out through a spongy ring of tissue at the edge of the iris. In most glaucoma, that drain is partly blocked, so fluid backs up and pressure climbs. Surgery does not fix the old drain. It bypasses it.

The longest-established operation is trabeculectomy, in which the surgeon creates a tiny flap in the white of the eye so fluid can seep out under the conjunctiva, the thin membrane covering the eyeball, according to the NHS. The fluid collects in a small, soft blister called a bleb, usually hidden under the upper eyelid, and is gradually absorbed by surrounding vessels. The bleb is both the achievement of the operation and the site of most of its complications.

To stop the body healing the flap shut, surgeons often apply an antimetabolite during the operation. An antimetabolite is a medicine that slows the growth of scar-forming cells; it improves the chance that the drain stays open but can make the bleb wall thinner and more prone to leaks over time.

A second approach uses a tube shunt: a fine silicone tube placed inside the eye that carries fluid to a small plate stitched to the outer wall, where it is absorbed. A third family, minimally invasive glaucoma surgery or MIGS, uses microscopic stents or small internal openings to improve outflow, typically with a smaller pressure reduction and a lower complication rate, as the National Eye Institute describes.

Which route is chosen depends on how far the pressure needs to fall, the type of glaucoma, the state of the eye’s surface, and prior operations. All three share the same central tension: enough drainage to protect the nerve, not so much that the eye deflates.

Who is usually offered glaucoma surgery, and who is usually asked to wait?

Surgery is rarely the first move. Guidance from the NHS and Mayo Clinic places drops and laser treatment ahead of it for most people with open-angle glaucoma, the common, slowly progressive form. An operation becomes the leading option when pressure remains above target despite maximum tolerated drops, when the optic nerve keeps deteriorating even at seemingly acceptable pressures, when drops cause side effects a person cannot live with, or when someone simply cannot use them reliably.

Some situations push toward surgery sooner. Angle-closure glaucoma, in which the drain is physically blocked by the iris, may need a laser or surgical procedure promptly. Congenital and childhood glaucoma are usually treated surgically from the outset because drops alone rarely control them, according to the National Eye Institute. Advanced damage with a small margin of remaining vision also tends to shorten the wait, because further loss carries a higher cost.

Others are typically asked to hold off or to prepare first:

• People with active inflammation or infection on the eye surface, which raises the risk of postoperative infection and scarring.
• Those whose pressure is only mildly above target and whose nerve looks stable, for whom the balance of risk may still favor drops or laser.
• Anyone with uncontrolled blood pressure or blood-thinning needs that must be planned around, since bleeding is a recognized surgical risk.
• People who cannot attend the frequent follow-up visits that early complication management requires.

None of these is an absolute bar. They are reasons a surgeon might sequence things differently. The decision belongs to the treating team, weighing how fast the nerve is losing ground against the specific risks of each procedure in that particular eye.

Why hypotony after glaucoma surgery matters as much as high pressure

It surprises many people that a surgeon who has spent months worrying about high pressure will, in the first week after surgery, worry about pressure that is too low. Hypotony is the medical term for intraocular pressure below the level needed to keep the eye’s internal structures properly shaped. The eye is, in a sense, a fluid-filled sphere held taut by its own pressure. Let too much fluid out and the sphere softens.

Early hypotony usually means the new drain is working too well. The flap may be a little loose, the stitches slightly too relaxed, or there may be a leak (covered next). Low pressure can occasionally happen because the eye is temporarily making less fluid after surgery.

Why does it matter? A few things can follow from a soft eye:

• The front chamber can shallow, bringing the iris and lens forward toward the cornea, which the surgeon checks at every visit.
• Fluid can collect under the choroid, the blood-vessel layer behind the retina, producing a choroidal effusion, which is a swelling that can blur vision and, if large, needs treatment.
• The macula, the retina’s central point of sharp vision, can wrinkle when the eye is under-pressured, a state called hypotony maculopathy, which is why persistent blur after surgery is never dismissed.

Most early hypotony settles as the tissues heal and the bleb finds its balance. When it does not, surgeons have a graded set of responses, from adjusting drops and adding a protective contact lens to tightening or adding stitches, injecting fluid to reinflate the chamber, or revising the flap. Each step is chosen by the surgical team based on the pressure reading, the depth of the front chamber, and what the retina looks like, not on a fixed schedule.

The useful message for a patient is simple. A blurry eye in the first weeks is not automatically “normal settling.” It is a data point the team wants.

Bleb leak symptoms: what a leak is and how the team finds it

A bleb leak is a tiny opening in the conjunctiva over the drainage site through which aqueous fluid escapes onto the surface of the eye rather than being absorbed under the tissue. Early leaks, in the first days or weeks, usually come from a wound edge that has not yet sealed. Late leaks, sometimes years later, come from a bleb wall that has thinned, especially where antimetabolites were used, according to the National Eye Institute’s description of trabeculectomy risks.

Leaks matter for two reasons that pull in opposite directions. Fluid pouring out means pressure can fall, bringing the hypotony problems already described. At the same time, an open channel from the eye’s interior to its surface is a route for bacteria, which is why a leaking bleb is treated as an infection risk even when the eye looks calm.

The test used to find a leak is beautifully simple. The clinician touches a drop of fluorescein, an orange dye that glows green under blue light, onto the eye surface. If fluid is escaping, it washes the dye away in a visible stream. This is the Seidel test, and it is performed routinely at postoperative visits whether or not a person has noticed anything.

What might a person notice? Often nothing at all, which is precisely why the scheduled visits exist. Sometimes there is watering that seems out of proportion, a persistent feeling of something in the eye, or a soft, slightly blurry sensation. None of these confirms a leak, and none should be interpreted at home; they are reasons to be seen.

Management follows the size and timing of the leak. Small early leaks frequently close with observation, pressure-patching, a bandage contact lens or a temporary reduction in anti-inflammatory drops to allow healing. Larger or persistent leaks may need stitches, a patch of tissue, or a bleb revision. The team decides; the patient’s job is to report and to attend.

Infection after glaucoma surgery: blebitis and endophthalmitis

Of all glaucoma surgery complications, infection is the one surgeons most want patients to understand, because speed changes everything. Two terms describe it. Blebitis is infection confined to the bleb and the tissue immediately around it. Endophthalmitis is infection that has spread into the fluid-filled interior of the eye, a sight-threatening emergency described by MedlinePlus and Mayo Clinic as one of the serious but uncommon risks of eye surgery.

The mechanism is straightforward. The bleb is a thin-walled pocket that communicates directly with the inside of the eye, sitting on a surface that normally carries bacteria. Anything that thins the wall, opens a leak, or increases the bacterial load on the surface tips the balance. Recognized contributors include a leaking or very thin bleb, a bleb positioned low on the eye where the lids do not cover it, chronic blepharitis (inflammation of the eyelid margins), contact lens wear, and rubbing or contaminating the eye.

Unlike cataract surgery, where the infection window is largely the first weeks, a bleb carries a small lifetime risk. A person who had a trabeculectomy years ago still has a bleb, and a red, painful eye in that person is treated with the same urgency as if the surgery were last week. This is the single fact most worth remembering long after the other details fade.

Treatment for suspected blebitis is intensive antibiotic drops started the same day by the ophthalmology team, with close review to make sure the infection is retreating rather than advancing. If there is any sign the interior is involved, the team may take a sample of fluid from the eye and give antibiotics directly inside it, sometimes alongside an operation to clear the infected gel. Those decisions are made in the clinic, rapidly, by specialists.

Nobody expects a patient to distinguish blebitis from a bit of irritation. The expectation is only that a red eye with pain, discharge or falling vision in an eye with a bleb is never left to “see how it looks tomorrow.”

Low pressure, leak or infection? The three problems side by side

The three headline complications overlap. A leak can cause hypotony; a leak can lead to infection; infection can, in turn, damage the bleb. Yet each has a characteristic pattern that the surgical team is tracking at every visit, and seeing them laid out together helps explain why the questions at follow-up sound so repetitive.

Problem	What is happening	Typical timing	What the team checks	Usual first responses (decided by the team)
Hypotony (low pressure)	New drain releases fluid faster than the eye can make it	Most often the first days to weeks; can persist or recur	Pressure reading, depth of the front chamber, retina and choroid examination	Watchful waiting, drop adjustments, protective lens, added stitches, chamber reinflation, flap revision
Bleb leak	Fluid escapes through an opening in the tissue over the drainage site	Early leaks in the first weeks; late leaks possible years later	Seidel dye test, bleb wall thickness and shape	Observation, patching, bandage contact lens, stitches, tissue patch or revision
Blebitis / endophthalmitis	Bacteria enter the bleb, then possibly the interior of the eye	Any time, from days to years after surgery	Redness pattern, discharge, pus in the bleb or front chamber, inflammation inside the eye	Same-day intensive antibiotics; for interior infection, fluid sampling, antibiotics into the eye, possible surgery

Two features of the table deserve emphasis. First, timing is a range, not a schedule; the NHS and Mayo Clinic both describe recovery as extending over weeks with individual variation, and the team’s visit plan is built around that uncertainty. Second, every response in the right-hand column is a clinical decision. Nothing in it is something a person should attempt or adjust at home, including changing their own drops.

Trabeculectomy complications compared with tube shunts and MIGS

Not every glaucoma operation carries the same risk profile, and this is often where people’s expectations go astray. They hear a friend’s account of a tube procedure and assume it applies to their stent.

Trabeculectomy, the operation with the bleb, tends to achieve the lowest pressures and therefore carries the most pressure-related risk. Its complications include early hypotony, bleb leak, shallow front chamber, a small bleed into the front chamber called a hyphema, and, over the longer term, bleb scarring that raises pressure again, bleb-related infection, and accelerated cataract formation. The National Eye Institute lists infection, bleeding, low pressure and cataract among its recognized risks.

Tube shunts avoid a surface bleb in the trabeculectomy sense but bring their own list: the tube can touch the cornea and gradually damage its inner cell layer, the plate can become encapsulated by scar tissue so pressure rises after an initial good phase, the tube can wear through the covering tissue and become exposed, and double vision can occur if the plate interferes with an eye muscle. Early hypotony is possible with some designs and is managed by the surgeon at the time of implantation.

MIGS procedures, being smaller, sit at the lower-risk end. The NEI describes them as generally safer with fewer complications but with a more modest pressure reduction. Their typical problems are transient: a little blood in the front chamber, a brief pressure spike, or a device that does not lower pressure enough and needs a further procedure later.

Across all three, one rare but serious event stands apart: a suprachoroidal hemorrhage, bleeding behind the retina that can occur when pressure drops suddenly during or after surgery. It is uncommon, more likely in eyes with certain risk factors, and one reason surgeons ask about blood-thinning medicines beforehand, without ever expecting a patient to stop them on their own.

The right comparison is never “which operation is safest” in the abstract. It is which risk profile is acceptable for the pressure this particular nerve needs.

Glaucoma surgery recovery time: what the following days and weeks usually look like

Recovery from filtration surgery is less about the eye healing in private and more about a supervised negotiation between the surgeon and the bleb. The NHS notes that most people can go home the same day and that the eye may feel sore and look red for a while; Mayo Clinic describes follow-up visits and the possibility of needing drops for weeks afterward. Beyond that, exact timelines are individual, and no honest source promises otherwise.

The first day or two typically involve a shield over the eye, blur that comes and goes, and mild ache. The first visit, often within a day, is mainly about pressure and the front chamber: is the eye too soft, too firm, or comfortably in between? A Seidel test for leaks is routine.

Over the first few weeks, the visits continue at close intervals. This is when a surgeon may perform small in-clinic adjustments to the bleb, such as releasing or lasering a stitch to increase flow, or massaging the eye to encourage drainage. Anti-inflammatory drops are usually continued and tapered by the team, because inflammation drives scarring and scarring can close the drain. Injections of antimetabolite near the bleb are sometimes used during this period to slow scarring; those are clinic decisions, not something to expect or request.

Vision commonly fluctuates during this phase. Some blur reflects the drops, some reflects the changing pressure, some reflects a shifting spectacle prescription that will not be settled for a while. The team will usually advise waiting before new glasses are made.

By around a month or two, in an uncomplicated course, visits space out and the picture of the bleb’s long-term behavior starts to form. Some people still need one or more drops to hold the pressure at target; others do not. Mayo Clinic is explicit that glaucoma surgery does not always eliminate the need for medicines, and that pressure can rise again over time, which is why lifelong monitoring continues regardless of how well the early weeks go.

What are the side effects of the eye drops used after glaucoma surgery?

People are often startled by how many bottles come home with them, and by how those bottles differ from the pressure-lowering drops they used before surgery. Understanding the purpose of each helps with both adherence and recognizing side effects.

Antibiotic drops are usually given for a short period to reduce the risk of surface bacteria entering the fresh wound. Side effects are mainly local: stinging, mild redness, occasionally an allergic reaction with itching and lid swelling.

Steroid anti-inflammatory drops do the heavier lifting. Inflammation is the body’s repair signal, and repair means scar tissue, which is exactly what would close the new drain. Steroids dampen that response. Their trade-offs are well documented by Mayo Clinic and MedlinePlus: they can raise pressure in susceptible individuals (a paradox the team specifically monitors for), slow surface healing, increase susceptibility to infection if overused, and, with long use, contribute to cataract. This is why the taper is set by the surgeon and why stopping early or extending on one’s own can each cause harm.

Some people are also given drops that dilate the pupil in the early period. These relax the internal muscles, deepen the front chamber and reduce ache, but they blur near vision and increase light sensitivity while in use.

Pressure-lowering drops, meanwhile, are frequently paused after filtration surgery, since the goal is to let the bleb establish flow. If they are restarted later, their side effects are the familiar ones: beta-blocker drops can slow the heart, tighten the airways in people with asthma, and cause tiredness or low mood; prostaglandin-type drops can darken the iris and lashes and redden the eye; other classes can cause a bitter taste, dry mouth or tingling. Any of these is worth raising at a visit rather than quietly enduring or stopping.

Technique matters too. Pressing gently on the inner corner of the eye after instilling a drop reduces the amount draining into the nose and bloodstream, according to Mayo Clinic, which limits whole-body effects.

What not to do after glaucoma surgery

Most of the restrictions after glaucoma surgery exist for one of two reasons: to avoid pushing pressure in the wrong direction, or to avoid introducing bacteria to a wound that opens into the eye. Seen through that lens, the list stops feeling arbitrary.

The NHS and Mayo Clinic advise avoiding activities that could strain or jolt the eye in the early weeks. In practice that means:

• No rubbing or pressing on the eye, and wearing the shield at night as instructed, since a thumb in a sleeping eye can open a fresh wound.
• No swimming, hot tubs or letting shower water run into the eye until the team says the surface has sealed, because water is a common bacterial route.
• No heavy lifting, straining or bending with the head below the heart for the period the surgeon specifies; these briefly raise pressure inside the eye and can stress fresh stitches.
• No eye makeup around the operated eye until cleared.
• No driving until vision and comfort meet the legal and clinical standard your team confirms.

Sleeping position can matter too. Some surgeons ask people to avoid lying on the operated side for a while so the lid and pillow do not press on the bleb. Follow whatever your own team says over anything you read here.

A different category of “do not” concerns medicines. Never stop or change prescribed drops, including the steroid taper, on your own judgment, and never use leftover drops from before surgery unless told to. Do not take anti-inflammatory tablets or blood-thinning medicines you were asked to hold, and do not resume them without checking. If a general practitioner or another specialist prescribes something new, mention the recent eye surgery; some medicines, including certain steroids and drugs that dilate the pupil, can affect eye pressure.

Finally, do not skip the follow-up visit because the eye feels fine. Leaks and hypotony are often silent, and the visit is where they are found.

What people often get wrong about glaucoma surgery complications

Myths about glaucoma tend to cluster around three false hopes and one unnecessary fear.

“Surgery will bring my vision back.” It will not. Glaucoma damage to the optic nerve is permanent, as MedlinePlus and the NHS state plainly; nerve fibers that have died do not regenerate, so glaucoma cannot be reversed. Surgery protects remaining vision by controlling pressure. If anything, vision is often a little worse for a few weeks after surgery before returning to roughly its previous level.

“Once I’ve had surgery, glaucoma is dealt with.” Mayo Clinic is clear that surgery does not always remove the need for drops and that pressure can rise again as scar tissue forms. Lifelong monitoring continues.

“Low pressure is always good.” As the hypotony section explained, an under-pressured eye can develop its own sight-threatening problems. The target is a window, not a floor.

“Glaucoma is causing my fatigue.” There is no established mechanism by which raised eye pressure or optic nerve damage produces whole-body tiredness. What is real, and worth raising with a doctor, is that certain pressure-lowering drops, notably the beta-blocker class, are absorbed into the bloodstream and can cause fatigue, low mood or a slow pulse; that living with reduced or fluctuating vision is genuinely tiring; and that the anxiety surrounding a chronic condition and its surgery takes a toll. A doctor can untangle those threads. Fatigue should never be assumed to be “just the glaucoma.”

“A red eye years later can’t be related to an old operation.” It can. A bleb remains a lifelong point of vulnerability to infection. Anyone who has had a trabeculectomy should tell any clinician assessing a red or painful eye, however long ago the surgery was.

A final, quieter misconception: that asking about complications signals distrust of the surgeon. Surgeons who perform these operations think about hypotony, leaks and infection constantly. A patient who understands them is a partner, not a skeptic.

Questions to ask your care team before and after glaucoma surgery

The most useful questions are the ones whose answers change what you do at home. Take this list to the pre-operative visit and keep the answers where you can find them at midnight.

Before surgery:

• Which operation are you recommending for my eye, and what pressure are you aiming for?
• Will you use an antimetabolite, and what does that mean for the long-term thickness of my bleb?
• What is the plan for my blood-thinning or other regular medicines around the operation?
• Which of my current glaucoma drops should stop, and when?

About the early weeks:

• How many visits should I expect in the first month, and what will you be checking at each?
• What in-clinic adjustments might you make to the bleb, and how would they feel?
• How will my steroid drops be tapered, and who tells me when to change?
• How long should I keep the shield on at night and avoid water in the eye?

About warning signs and access:

• Which symptoms mean I should call today, and which can wait for the next visit?
• What number do I call out of hours, and what should I say so the right person is alerted?
• If I need to be seen urgently, where do I go?

About the long term:

• How often will my pressure and visual field be checked once things settle?
• What should I tell other doctors, and any future eye clinician, about having a bleb?
• If the drain scars and pressure rises again, what are the likely next steps?

Write down the answers, or ask permission to record them. Post-operative instructions given while a person is still under the influence of anesthesia drops and adrenaline are notoriously hard to remember accurately.

When to call your doctor after glaucoma surgery

Clinicians would rather take ten unnecessary phone calls than miss one bleb infection. Use that as your standard.

Call the surgical team the same day, or attend an emergency eye service if you cannot reach them, for any of the following in the operated eye:

• Increasing pain, especially pain that is getting worse rather than better, or a deep ache that painkillers do not touch.
• Redness that is spreading or intensifying, particularly if concentrated around the upper part of the eye where the bleb sits.
• Sticky, yellow or green discharge, or a bleb that looks milky or filled with pus.
• A sudden or progressive drop in vision, new cloudiness, or a curtain or shadow appearing in part of the vision.
• Marked new sensitivity to light.
• A sudden gush of watering, or a feeling that the eye has become very soft.
• Nausea or vomiting with eye pain and blur, which can signal a sharp pressure rise.
• Any injury to the eye, however minor it seems.

These signs do not each mean infection; some point toward low pressure, a leak, a bleed or a pressure spike. All of them need examination that only a clinician with the right equipment can perform. Mayo Clinic and MedlinePlus both identify sudden pain, redness and vision loss as symptoms that warrant urgent eye care.

Less urgent but still worth a call at the next working opportunity: mild irritation that persists beyond what you were told to expect, difficulty using the drops, a rash or itching around the lids, or uncertainty about whether to continue a medicine.

This vigilance does not end when the bandages come off. Because a bleb is a lifelong feature, the same red-flag list applies years after surgery, and it should be shared with anyone who assesses your eyes in future. The team’s job is to decide what is happening and what to do. Yours is to make the call.

Frequently asked questions

What are the most common glaucoma surgery complications in the first month?

The most closely watched early problems are low eye pressure, leakage from the drainage bleb, a shallow front chamber and mild bleeding inside the eye, with infection being rarer but more urgent. Most are picked up at scheduled visits rather than by symptoms, and most respond to adjustments the surgeon can make in the clinic. Long-term issues such as scarring of the drain and cataract develop over months to years.

What does hypotony after glaucoma surgery feel like?

Often it feels like nothing specific, which is why pressure is measured at every visit. Some people notice persistent blur, a soft or achy sensation, or vision that fluctuates more than expected. A surgeon detects it by measuring pressure, checking the depth of the front chamber and examining the retina for fluid or wrinkling. Treatment ranges from simple observation to stitches or a flap revision, decided case by case.

What are bleb leak symptoms I should know about?

Many leaks cause no symptoms at all. When they do, people describe excessive watering, a gritty or foreign-body sensation, or a soft, blurry eye. None of these confirms a leak; the clinician uses a fluorescein dye test to see fluid escaping. Any of these changes, or new redness or discharge, is a reason to contact the team rather than something to assess at home.

What are trabeculectomy complications compared with a tube shunt?

Trabeculectomy carries more bleb-related risks: hypotony, leaks, bleb scarring and lifelong bleb infection risk, alongside cataract formation. Tube shunts avoid a surface bleb but can touch and damage the cornea, become encapsulated so pressure rises later, erode through their covering, or cause double vision. Minimally invasive procedures have fewer complications but usually lower pressure less. The right choice depends on the pressure the individual nerve needs.

How long is glaucoma surgery recovery time?

Recovery is measured in weeks rather than days and varies between individuals, according to the NHS and Mayo Clinic. Soreness, redness and fluctuating vision are typical early on, follow-up visits are frequent in the first month, and drops are tapered over that period by the team. A stable picture of how the drain will behave long term usually emerges over the following months, and monitoring continues for life.

What not to do with glaucoma after surgery?

Avoid rubbing or pressing the eye, getting water in it from swimming or showering until cleared, heavy lifting or straining, and eye makeup, all for the period your surgeon specifies. Do not stop, restart or change any prescribed drops or blood-thinning medicines on your own, and do not skip follow-up visits because the eye feels comfortable, since leaks and low pressure are frequently silent.

Is it possible to reverse glaucoma with surgery?

No. Damage to the optic nerve from glaucoma is permanent, and no current operation, laser or drop can restore lost nerve fibers or the vision they carried. Surgery lowers eye pressure to protect the vision that remains and slow further loss. Vision may even be slightly blurrier for a few weeks after surgery before returning to roughly its previous level.

What is the relationship between glaucoma and fatigue?

There is no established direct link between raised eye pressure or optic nerve damage and whole-body tiredness. Fatigue in people with glaucoma is more often explained by side effects of certain pressure-lowering drops, particularly the beta-blocker class, by the effort of coping with reduced or fluctuating vision, or by the stress of a chronic condition and surgery. A doctor can help identify which applies.

Can infection happen years after glaucoma surgery?

Yes. Unlike most eye operations, trabeculectomy leaves a thin-walled bleb that communicates with the inside of the eye for life, so infection of the bleb, and potentially the eye’s interior, remains possible long after surgery. A red, painful eye with discharge or reduced vision in anyone with a bleb needs same-day assessment, and future clinicians should always be told about the operation.

Will I still need eye drops after glaucoma surgery?

Possibly. Mayo Clinic notes that surgery does not always remove the need for pressure-lowering medicines, and that pressure can rise again over time as scar tissue forms around the new drain. Some people achieve target pressure without drops, others need one or more, and the picture can change over the years, which is why regular monitoring continues indefinitely.

References

• National Eye Institute (NIH): Glaucoma surgery
• MedlinePlus: Glaucoma

This article is for general information only and is not a substitute for professional medical advice. Please consult a qualified doctor about your individual situation.