Best Glaucoma Specialist in Gurgaon

Dr Shibal Bhartiya‘s Credentials at a Glance:

  • 25+ years of experience in ophthalmology
  • Fellowship-trained glaucoma specialist. 3 years dedicated clinical training in glaucoma and cornea, plus concurrent role as Senior Research Associate, AIIMS, New Delhi
  • Structured fellowship, Senior Clinical Research Fellow, Department of Clinical Neurosciences, University of Geneva. Special focus: 24 hour IOP monitoring, Glaucoma lasers, SLT, MIGS )
  • One of few glaucoma specialists also specifically trained in optic neuropathies
  • Mayo Clinic Research Collaborator (current)
  • Executive Editor, Journal of Current Glaucoma Practice
  • 200+ peer-reviewed publications, 90+ on PubMed
  • 28+ edited ophthalmology textbooks
  • 1,580+ five-star patient reviews on Google, Gurgaon practice

Quick Answer: Dr Shibal Bhartiya is a fellowship-trained glaucoma specialist in Gurgaon with over 25 years of experience in ophthalmology. Her training included three years of dedicated glaucoma and cornea clinical training, alongside a concurrent role as Senior Research Associate, at AIIMS New Delhi. This was followed by a structured fellowship in glaucoma in the Department of Clinical Neurosciences at the University of Geneva, with a focus on MIGS. This combination makes her one of a small number of glaucoma specialists also specifically trained in optic neuropathies. Dr Bhartiya is also uniquely positioned to manage glaucoma-related ocular surface disease and dry eye, given her parallel cornea training.

Dr Shibal Bhartiya is a current Mayo Clinic Research Collaborator. She has published more than 200 peer-reviewed papers, and has edited over 28 ophthalmology textbooks. She serves as Executive Editor of the Journal of Current Glaucoma Practice. Across her Gurgaon practice’s 1,580+ verified five-star reviews, patients consistently describe feeling heard and treated as individuals, not just diagnoses, with tests, treatment plans, and disease explained in plain language.

Best Glaucoma Specialist in Gurgaon: What Sets Fellowship-Trained Glaucoma Care Apart

Searching for “best glaucoma specialist Gurgaon” usually surfaces a mix of general ophthalmologists, multi-specialty hospital listings, and very few fellowship-trained subspecialists. The difference matters more in glaucoma than almost any other eye condition. It is a disease that is silent until vision is already lost. The treatment decisions made early determine how much sight is preserved over a lifetime. Also, glaucoma rarely exists in isolation. Glaucoma patients frequently develop dry eye from long-term drop us. Some may present with overlapping optic nerve conditions that a purely glaucoma-trained eye can miss. This page sets out, plainly, what fellowship-level glaucoma training, cross-disciplinary training, and active research involvement actually mean for a patient sitting in the chair.

Dr Shibal Bhartiya is a fellowship-trained glaucoma specialist and Mayo Clinic Research Collaborator with over 25 years of experience. Her approach focuses on identifying risk before damage is irreversible, simplifying treatment decisions, and protecting vision long-term. Emphasis on early detection, risk assessment, and continuity of care.

Important: Glaucoma has no symptoms until significant, irreversible vision loss has already occurred in most cases. The qualifications and ongoing research engagement of the specialist you choose is important. It directly affects how early disease is caught and how treatment is sequenced.


What Fellowship-Level Glaucoma Training Looks Like

Training ComponentWhat It MeansWhy It Matters for Patients
Glaucoma + cornea clinical training, plus Senior Research Associate, AIIMS New Delhi3 years of concurrent clinical and research immersion across glaucoma and cornea, alongside high volume, complex glaucoma case exposure; ongoing research collaborations with Prof Tanuj Dada, Head of the Glaucoma Unit at AIIMSUniquely positioned to manage glaucoma-related ocular surface disease and dry eye, which most glaucoma-only specialists are not specifically trained to treat
Structured fellowship, Senior Clinical Research Fellow, Dept of Clinical Neurosciences, University of GenevaFellowship under Prof Tarek Shaarawy, a leading international authority on MIGS, within a neurosciences department rather than a standard ophthalmology unitOne of a small number of glaucoma specialists also specifically trained to manage other optic neuropathies, not just glaucoma in isolation
Mayo Clinic Research Collaborator (current)Active, ongoing collaboration with one of the world’s leading glaucoma research groupsTreatment recommendations are informed by current international research, not outdated protocols
Executive Editor, Journal of Current Glaucoma PracticeReviews and shapes published glaucoma research globallyFirst-hand, early access to emerging evidence and treatment shifts
200+ peer-reviewed publications, 28+ edited textbooksSustained contribution to the field’s evidence base, not just clinical practiceIndicates depth of subject mastery beyond routine patient care
1,585+ five-star Google reviews, Gurgaon practiceSustained, high-volume patient satisfaction across years of practice, not a handful of recent reviewsReal-world evidence that credentials translate into consistent, trusted patient experience — patients consistently describe feeling heard, having unhurried conversations, and treatment explained in terms of quality of life, not just disease numbers

When To See a Glaucoma Specialist (Not a General Ophthalmologist)

  • A family history of glaucoma, especially in a parent or sibling
  • High eye pressure found on a routine check, even without symptoms
  • Diabetes, high myopia, or long-term steroid use
  • Already diagnosed with glaucoma and considering a second opinion before surgery
  • Vision loss that your current doctor has not been able to fully explain
  • Persistent dryness, burning, or irritation alongside long-term glaucoma drop use
  • Considering newer surgical options like MIGS before agreeing to traditional surgery
  • Age over 40 with no eye pressure check in the last two years

What 1,580+ Five-Star Reviews Reflect

Patient tip: A high review volume matters less than what reviews consistently describe. Look for patterns, not just star counts. Most patients call her the best eye doctor, or the best glaucoma specialist in Gurgaon! Most also appreciate how friendly she, and how she especially takes care of children. Several patients mention how much her second opinions, as well as teleconsultations, helped them.

Patients consistently talk of her clear, unhurried explanations. They describe two being told clearly what stage their glaucoma is at. They also say that treatment decisions were explained rather than simply prescribed. In a condition where lifelong monitoring and trust matter as much as any single procedure, that consistency across nearly 1,600 reviews is itself a clinical signal.


Book a Consultation

If you’ve been told you have glaucoma, are at risk, or want a second opinion before surgery. Getting a clear, evidence- based, research-informed assessment early protects vision that cannot be regained later. Book an Appointment → contact us | +91 8882638735


Frequently Asked Questions

What makes a glaucoma specialist different from a general eye doctor?

A glaucoma specialist has completed dedicated subspecialty training beyond a general ophthalmology residency. This typically including a fellowship focused entirely on glaucoma diagnosis, surgical management, and long-term monitoring. This means deeper experience with complex cases, newer surgical techniques like MIGS, and treatment decisions. In Dr Bhartiya’s case, her clinical work grounded in evidence based medicine rather than general practice.

Is Dr Shibal Bhartiya the best glaucoma specialist in Gurgaon?

Dr Shibal Bhartiya is a fellowship-trained glaucoma specialist with over 25 years of experience, including dedicated glaucoma and cornea training at AIIMS New Delhi and a structured fellowship at the University of Geneva. She is a Mayo Clinic Research Collaborator, has authored over 200 publications. She has over 1,585 five-star patient reviews on google, most of which call her the best glaucoma specialist or best eye doctor!

What do patients say about Dr Shibal Bhartiya’s care, beyond her credentials?

Across more than 1,580 five-star reviews on google, patients consistently mention the human experience of care. They always mention being heard without feeling rushed, having questions answered in plain language. Patients appreciate that treatment is explained in terms of daily quality of life rather than just numbers and scans. They also appreciate her ethical, personalised care, with no unnecessary tests or surgeries.

Most patients also call her the best glaucoma specialist, or the best eye doctor in Gurgaon. Most also appreciate how friendly she, and how she especially takes care of children. Several patients mention how much her second opinions, as well as teleconsultations, helped them.

Why does training in cornea matter for a glaucoma specialist?

Long-term glaucoma management almost always involves years of preservative-containing eye drops. This commonly cause ocular surface disease and dry eye over time. A glaucoma specialist with concurrent cornea training is able to recognise and manage this overlap directly. Which means Dr Bhartiya does not have to refer patients elsewhere for a problem that the glaucoma treatment itself helped cause.

What does training in optic neuropathies add to glaucoma care?

Glaucoma is itself a type of optic neuropathy. Some patients have overlapping or atypical optic nerve conditions that can be mistaken for glaucoma or missed alongside it. Specialists trained specifically in optic neuropathies, in addition to glaucoma, are better equipped to catch these atypical presentations early and avoid misdiagnosis.

What is MIGS and why does fellowship training in it matter?

MIGS (Minimally Invasive Glaucoma Surgery) is a newer category of glaucoma surgery. This is less invasive than traditional procedures, with faster recovery and fewer complications for suitable candidates. Specialists trained directly with international MIGS researchers are better positioned to judge which patients are good candidates and to perform it safely.

Should I get a second opinion before glaucoma surgery?

Yes, particularly for procedures that are not reversible. Glaucoma surgery decisions benefit from input by a specialist with broad surgical and research experience. The right choice depends on disease stage, risk stratification and patient preference. Dr Shibal Bhartiya explains options, eye anatomy, and how the disease is likely to progress over decades. Her second opinion is not based just current eye pressure.


Key Takeaways

  • Fellowship-level glaucoma training (AIIMS, University of Geneva) means deeper exposure to complex cases and advanced techniques like MIGS
  • Concurrent cornea training at AIIMS uniquely positions her to manage glaucoma-related dry eye and ocular surface disease
  • Geneva fellowship was within a Department of Clinical Neurosciences, adding specific training in optic neuropathies beyond glaucoma alone
  • Active research collaboration (Mayo Clinic) keeps treatment decisions current with global evidence
  • 1,580+ five-star reviews show consistency in patient trust and communication over time
  • Second opinions matter most before irreversible surgical decisions

This page is part of the Glaucoma Hub — covering diagnosis, monitoring, and treatment options for patients seeking specialist glaucoma care in Gurgaon. You may want to read about Glaucoma ProgressionRisk Stratification in Glaucoma, Glaucoma Specialist in Gurgaon. Also interesting could be Advanced Glaucoma Care in Gurgaon, Online Glaucoma Consultation, What Ethical Glaucoma Care Looks Like and Glaucoma Second Opinion — Gurgaon. Other articles of interest could be Advanced Glaucoma Care in Gurgaon, What Good Glaucoma Care Actually Optimises For, What Happens If Glaucoma Is Left Untreated? Please read More Glaucoma Eye Drops is Not Better Glaucoma Care, 5 Mistakes Patients Make in Glaucoma Care and Do You Really Need Treatment for Glaucoma?


About the Author

This article is about Dr Shibal Bhartiya, fellowship-trained glaucoma specialist and Mayo Clinic Research Collaborator. She is Clinical Director, Ophthalmology, at Marengo Asia Hospitals, Gurugram, known for ethical, patient-centred glaucoma care and independent glaucoma second opinions. She is also the Program Director for Community Outreach & Wellness; and for the Marengo Asia International Institute of Neuro and Spine.

Dr Bhartiya has published peer-reviewed research on glaucoma management, examining how treatment decisions should balance medical evidence, patient preferences, and long-term vision outcomes.

As Editor-in-Chief of Clinical and Experimental Vision and Eye Research and Executive Editor of the Journal of Current Glaucoma Practice (Pubmed Indexed, official journal of the International Society of Glaucoma Surgery), Dr Shibal Bhartiya brings editorial and research depth to every clinical decision. Her 200+ publications, including 90+ PubMed-indexed publications and 28 edited textbooks span glaucoma biology, surgical outcomes, health equity, and emerging diagnostics.

1580+ Five Star Patient Reviews Google Business Profile

If you are unable to come to Dr Bhartiya’s clinic: Read more about teleconsultation

Read her research on PubMed | Google Scholar | ResearchGate | ORCID

Upload your reports for a structured review.| www.drshibalbhartiya.com | +91 88826 38735

Leave a review on Google


Avoid Glaucoma Surgery

Glaucoma can appear uncontrolled when medications are not being used consistently or correctly. Complex treatment schedules, poor eye drop technique, treatment fatigue, and medication side effects may raise eye pressure and mimic disease progression. A glaucoma second opinion can identify these issues before surgery is considered.

Not every patient with glaucoma needs surgery immediately. In many cases, improving eye drop technique, simplifying medications with fixed-dose combinations, or considering SLT laser treatment can achieve good pressure control and delay or avoid surgery. This is when a Glaucoma Second Opinion can help, says Dr Shibal Bhartiya.

A Word of Caution: Avoiding glaucoma surgery is NOT always advisable. In certain cases, the surgery is the only option, and helps prevent blindness. You must discuss the risks and benefits of your treatment protocol in detail with your glaucoma doctor before coming to a decision.

She Was Told She Needed Surgery

Anita, 63, had been living with glaucoma for nearly six years when she came to see me. At her previous appointment, surgery had been advised. Her eye pressure remained above target despite treatment, and recent visual field tests suggested possible progression. The changes were not dramatic, but they were concerning enough for surgery to enter the discussion.

She arrived carrying a large folder of records and four eye drop bottles.

As I reviewed her reports, I understood the concern. Her pressures were higher than ideal. A few visual field tests appeared slightly worse than earlier ones. Yet the optic nerve photographs showed only subtle change over time.

The clue had been present for months. I asked Anita to describe her treatment routine.

She was not avoiding treatment. She was trying very hard to follow it. The problem was that her regimen had gradually become more complicated. Four medications meant four separate bottles. Some needed morning doses. Others needed evening doses. During travel, one bottle might be forgotten. On busy days, she sometimes could not remember whether she had already used a drop.

Then I asked her to put in her medication. One drop landed on her cheek. Another missed the eye completely.

The glaucoma was real. The pressure problem was real. The possible progression was real.

But the patient was not failing treatment. The treatment plan was failing the patient. We simplified her regimen. Four separate medications became two fixed-dose combination bottles. We reviewed eye drop technique and built the schedule around her daily routine. Over the next three months, we achieved her target IOP, with the same medicines. Just in fewer bottles, and just because she learnt how to put them herself.

Over the last two years, her visual fields and RNFL OCT have been stable.

Patient details have been changed to protect privacy.

Here is What We Must Remember

Anita’s case highlights an important lesson. Not every patient with uncontrolled eye pressures needs glaucoma surgery. Sometimes the problem lies in how treatment is being delivered rather than the treatment itself. Glaucoma medications only work when they reach the eye consistently and correctly. Before treatment is escalated, it is important to understand whether the prescribed therapy is practical, tolerable, and sustainable. In this article, I explain why glaucoma treatment sometimes appears to fail and how a glaucoma second opinion can help.

Why Glaucoma Treatment Sometimes Appears To Fail

The goal of glaucoma treatment is simple. Lower eye pressure enough to prevent damage to the optic nerve. Achieving that goal is often more complicated.

Many patients begin treatment with a single eye drop. As glaucoma progresses, additional medications may be added. Over time, one bottle can become two, then three, then four. Each medication may have a different schedule.

For some patients, this becomes difficult to sustain.

In my practice, I commonly see patients who understand the importance of their medication but struggle with the practical realities of long-term treatment. Life gets busy. Travel happens. Schedules change. Even highly motivated patients miss doses.

Poor adherence does not always mean patients are careless. More often, it reflects treatment burden.

The clue had been present for almost a year in Anita’s case. Her pressure fluctuated more than expected. Her visual fields suggested borderline progression. Yet the optic nerve remained relatively stable. The pattern suggested that treatment effectiveness might be inconsistent.

When treatment appears to fail, specialists should ask several questions:

  • Is the diagnosis correct?
  • Is the target pressure appropriate?
  • Is the medication reaching the eye?
  • Is the patient able to follow the regimen?
  • Are side effects reducing adherence?

The answers can significantly change management.

The Importance of Eye Drop Technique

Many patients have never been shown how to use an eye drop correctly.

Common mistakes include:

  • Missing the eye completely
  • Blinking immediately after instillation
  • Using multiple drops at once
  • Touching the bottle tip to the eye
  • Administering medications too close together

Even small technique errors can reduce treatment effectiveness.

A simple demonstration often reveals problems that no scan or visual field test can detect.

Why Fixed-Dose Combinations Matter

Fixed-dose combinations combine two glaucoma medications into a single bottle.

Many patients assume these combinations are prescribed for convenience alone. In reality, they often improve treatment success.

A patient using four medications in four separate bottles may struggle with timing, scheduling, and adherence. The same medications delivered through two fixed-dose combinations can reduce confusion and simplify daily routines.

Fewer bottles often mean:

  • Better adherence
  • Less treatment fatigue
  • Lower preservative exposure
  • Greater long-term consistency

The most effective treatment is not always the strongest treatment. Often, it is the treatment a patient can realistically follow every day for years.

Could Laser Treatment Reduce the Need for Eye Drops?

For some patients, Selective Laser Trabeculoplasty (SLT) offers another way to lower eye pressure without adding more medications. SLT is a quick outpatient laser procedure that improves the eye’s natural drainage system. It does not cure glaucoma, but it can reduce eye pressure and, in some patients, decrease the number of medications needed.

This can be particularly helpful for patients who struggle with eye drop schedules, experience side effects from medications, or find long-term adherence difficult. While not every patient is a suitable candidate, SLT is increasingly being used earlier in the treatment pathway because it avoids many of the compliance challenges associated with daily eye drops. A glaucoma specialist can determine whether SLT is appropriate based on the type of glaucoma, eye pressure targets, and the overall risk of progression.

This is why a glaucoma second opinion should not focus only on surgery versus medications. For selected patients, laser treatment may offer an effective middle path.

How to Tell Glaucoma Progression From Treatment Problems

SymptomWhat It SuggestsWhat To Do
Rising eye pressure with stable optic nervePossible adherence issueReview medication use and eye drop technique within weeks
Borderline visual field progressionInconsistent treatment or early progressionRepeat visual field testing and specialist review
Multiple missed doses each weekTreatment burdenSimplify regimen and reassess pressure
Burning or redness from medicationOcular surface toxicityReview medications and ocular surface health
Difficulty managing several bottlesCompliance challengeConsider fixed-dose combinations
Progressive optic nerve damage despite good adherenceTrue disease progressionDiscuss laser or surgical options with a glaucoma specialist

Why This Diagnosis Is So Often Missed

Doctors naturally focus on disease progression. Sometimes the treatment process receives less attention.

Eye pressure is easy to measure. Medication adherence is much harder to assess. Many patients feel embarrassed to admit they miss doses. Others genuinely believe they are using their medication correctly.

Busy clinics may not have time to observe eye drop technique. Treatment burden develops gradually. Patients adapt to it until the regimen becomes overwhelming.

Preservatives in glaucoma medications may also contribute to ocular surface disease. Redness, burning, and irritation can reduce adherence further.

When eye pressure rises, it is easy to assume the disease is worsening. Sometimes the medication is simply not reaching the eye consistently.

Recognising this distinction can prevent unnecessary treatment escalation.

When To See an Eye Specialist

You should seek specialist evaluation, or a second opinion, if:

  • You have been advised glaucoma surgery and want a second opinion
  • Eye pressure remains above target despite multiple medications
  • Your visual field tests show possible progression
  • You struggle to remember or administer your eye drops
  • Your eyes burn, sting, or remain red after glaucoma treatment
  • You have been told everything is stable but symptoms continue

Frequently Asked Questions

Can poor eye drop technique make glaucoma appear worse?

Yes. If medication does not reach the eye consistently, eye pressure may remain elevated. This can create the impression that treatment is failing even when the prescription itself is appropriate.

Why might a glaucoma specialist recommend a second opinion before surgery?

A second opinion helps confirm whether glaucoma is truly progressing. It also evaluates medication adherence, eye drop technique, treatment burden, and medication tolerance before irreversible procedures are considered.

How do fixed-dose combination eye drops help glaucoma patients?

Fixed-dose combinations reduce the number of bottles and simplify treatment schedules. This often improves adherence and helps patients maintain more consistent pressure control over time.

Should glaucoma surgery be delayed if treatment adherence is poor?

Not always. Some patients genuinely require surgery. However, adherence problems, poor eye drop technique, and unnecessarily complex regimens should be identified and addressed before concluding that surgery is the only option.

Book a Consultation

Consider a consultation if you have been advised glaucoma surgery, if your eye pressure remains uncontrolled, or if your visual field tests show possible progression despite treatment.

A glaucoma consultation includes assessment of optic nerve health, visual field results, pressure trends, medication tolerance, and practical evaluation of how glaucoma medications are being used.

[Book an Appointment →+91 8882638735]


This page is a part of the Glaucoma Hub. you may want to read about Glaucoma Progression, and Risk Stratification in Glaucoma. Other articles of interest could be Advanced Glaucoma Care in Gurgaon, What Good Glaucoma Care Actually Optimises For, What Happens If Glaucoma Is Left Untreated?, More Glaucoma Eye Drops is Not Better Glaucoma Care, 5 Mistakes Patients Make in Glaucoma Care and Do You Really Need Treatment for Glaucoma?

You may also want to read Glaucoma Second Opinion — Gurgaon, Online Glaucoma Consultation and Second Opinion Before Eye Surgery.


About the Author

This article was written by Dr Shibal Bhartiya, fellowship-trained glaucoma specialist and Mayo Clinic Research Collaborator, Clinical Director at Marengo Asia Hospitals, Gurugram, known for ethical, patient-centred glaucoma care and independent glaucoma second opinions. She is also the Program Director for Community Outreach & Wellness; and for the Marengo Asia International Institute of Neuro and Spine.

She has published peer-reviewed research on glaucoma management, examining how treatment decisions should balance medical evidence, patient preferences, and long-term vision outcomes.

As Editor-in-Chief of Clinical and Experimental Vision and Eye Research and Executive Editor of the Journal of Current Glaucoma Practice (Pubmed Indexed, official journal of the International Society of Glaucoma Surgery), Dr Shibal Bhartiya brings editorial and research depth to every clinical decision. Her 200+ publications, including 90+ PubMed-indexed publications and 28 edited textbooks span glaucoma biology, surgical outcomes, health equity, and emerging diagnostics.

1500+ Five Star Patient Reviews Google Business Profile

If you are unable to come to Dr Bhartiya’s clinic: Read more about teleconsultation

Read her research on PubMed | Google Scholar | ResearchGate | ORCID

Upload your reports for a structured review.| www.drshibalbhartiya.com | +91 88826 38735

Leave a review on Google

Glaucoma Progressing Despite Normal Pressure: 24 Hour IOP

Glaucoma progression despite apparently controlled intraocular pressure is one of the most disorienting experiences a patient can face. It is also one of the most common reasons patients seek a glaucoma second opinion. The reason is almost always the same: daytime clinic readings capture one moment. They do not capture what happens at night, explains Dr Shibal Bhartiya.

Not all glaucoma medications lower pressure around the clock. Brimonidine and timolol both show significantly reduced activity after midnight. A patient whose pressure is controlled at 11 am may have entirely uncontrolled pressure at 3 am — and no standard clinic visit will reveal this.

Dr Shibal Bhartiya is a fellowship-trained glaucoma specialist and Mayo Clinic Research Collaborator with over 25 years of experience. Her approach focuses on identifying risk before damage is irreversible, simplifying treatment decisions, and protecting vision long-term. Emphasis on early detection, risk assessment, and continuity of care. She is rated 5 stars across 1,500+ patient reviews on Google.

My Glaucoma Is Progressing But My Pressure Is Always Normal. What Is Going On?

He was in his early sixties — careful, informed, and deeply confused.

He came to me for a second opinion after five to six years under glaucoma care. His file was meticulous. His lifestyle was exemplary — non-smoker, controlled blood pressure, controlled blood sugars. He was on two medications: timolol and brimonidine. His baseline IOP had been 26 to 27 mmHg. On treatment, it now sat at 13 to 14 mmHg at every clinic visit for years.

By every standard measure, he was a success story. But his glaucoma was still progressing.

He was not angry. He was bewildered. I have done everything right, he told me. Why is this still happening?

That question deserved a better answer than he had been given. The answer was in the hours nobody had measured.

The question nobody had asked

I looked at his records and asked him one thing: had anyone ever done a diurnal variation for him? A 24-hour IOP measurement, mapped across day and night? Or a Water Drinking Test?

He said no.

We enrolled him in a study using the Triggerfish sensor — a contact lens device that records continuous IOP fluctuation over 24 hours. The device does not measure absolute pressure values, but it maps the pattern of fluctuation with precision.

The night-time readings were almost double the daytime values.

Most clinic visits measure pressure once, mid-morning, when he was up and about. That is the reading least likely to catch a nocturnal spike. His reassuring numbers, always 13, always 14, had been capturing only half the story. The other half was unfolding while he slept, while no one was measuring, while his optic nerve absorbed damage that nobody anticipated.

Why his medications were failing him at night

The reason was pharmacological, and it is something worth stating clearly: brimonidine and timolol do not work at night. Their pressure-lowering effect drops sharply in the late hours. His reassuring clinic readings — always 13, always 14 — had been capturing only half the story. The other half was invisible, unfolding while he slept, while no one was measuring, while his optic nerve absorbed damage that nobody anticipated.

This is not a failure of the medications. It is a failure of the measurement system — and of the assumption that a daytime number tells the whole story.

What Doctors Often Miss

Brimonidine and timolol do not work at night. This is pharmacology, not failure — their pressure-lowering effect drops sharply in the late hours. It is a well-documented limitation that is not always communicated to patients or factored into treatment decisions.

The result is that a patient can have genuinely excellent daytime control and entirely uncontrolled nocturnal pressure simultaneously. Standard clinic visits — timed to office hours — will never detect this.

The other missed step is the diurnal variation test itself. It is one of the most underused and highest-yield investigations in glaucoma management. It is rarely ordered unless a specialist specifically suspects nocturnal IOP spikes. If your glaucoma is progressing despite apparently good readings, this investigation is worth asking for by name — and a glaucoma second opinion is always reasonable in this situation.


Why Prostaglandins Are First-Line for a Reason

We switched him to bimatoprost 0.01% — a prostaglandin analogue. Prostaglandins are the only class of glaucoma medication proven to work continuously across 24 hours. They do not lose activity at night.

That was in 2012 to 2013. He has been stable for over six years.

One molecule change. One question that had never been asked. Six years of stability that five years of treatment had never delivered.


Symptoms, Pressure Patterns, and When to Investigate

FindingLikely CauseWhen to Investigate Further
Glaucoma progressing despite good clinic IOPNocturnal IOP spike not captured by daytime readingsRequest 24-hour diurnal variation assessment
On timolol or brimonidine, still progressingNight-time loss of drug efficacyAsk whether a prostaglandin has been considered
Visual field deterioration at routine reviewOngoing IOP fluctuation between clinic visitsIOP fluctuation may be as damaging as sustained elevation
Good compliance, good lifestyle, still progressingMedication class mismatch for 24-hour coverageSecond opinion from glaucoma specialist
Pressure controlled but OCT showing RNFL thinningStructural damage continuing despite IOP numbersFull diurnal assessment and treatment review

What This Means for You

If your glaucoma is progressing despite readings that look controlled, the readings may be incomplete — not the whole story, only the morning chapter.

The questions worth asking at your next visit: Has my pressure ever been measured at night? Has anyone checked whether my medications work across 24 hours? Has a prostaglandin analogue been considered as my primary medication?

You are not doing anything wrong. The measurement system may simply be missing the hours that matter most.


If your glaucoma is progressing despite treatment, or if you have never had a 24-hour IOP assessment, a specialist review may give you answers years of routine care have not.

Book a consultation or second opinion with Dr Shibal Bhartiya in Gurgaon.
+91 88826 38735 | www.drshibalbhartiya.com


FAQs

My glaucoma is progressing but my eye pressure is always normal at the clinic. How is that possible?

Clinic readings capture pressure at one moment, usually mid-morning. Eye pressure fluctuates across 24 hours. Certain medications — including timolol and brimonidine — lose effectiveness at night. If pressure spikes at 2 am, no daytime clinic visit will catch it. That spike is still damaging your optic nerve, invisibly, visit after visit.

What is a diurnal variation test and do I need one?

A diurnal variation maps your eye pressure across the full day and night. It is recommended when glaucoma is progressing despite apparently controlled pressure, when you are on medications that may not provide round-the-clock coverage, or when your specialist suspects night-time IOP spikes. It is one of the most underused and highest-yield tests in glaucoma management.

Why are prostaglandin eye drops the first choice for glaucoma?

Prostaglandins are the only class of glaucoma medication that works continuously across 24 hours. Other drugs — including timolol and brimonidine — show significantly reduced activity at night. For long-term pressure control, the night-time hours matter as much as the daytime ones. This is why prostaglandin analogues are recommended as first-line therapy in international glaucoma guidelines.

Can glaucoma progress even when I am doing everything right?

Yes, and it is more common than patients realise. Controlled daytime pressure, healthy lifestyle, medication compliance — none of these guarantee protection if night-time IOP is unaddressed. Progression despite apparent control is a signal to investigate further, not to doubt yourself. A glaucoma second opinion is always reasonable in this situation.

Should I ask for a 24-hour IOP test if my glaucoma is progressing?

Yes. If your visual fields are declining despite good clinic readings, a diurnal variation assessment is a reasonable and important next step. Ask your glaucoma specialist specifically about this. It is a question worth asking at your next visit.


This page is part of the Advanced Glaucoma Care hub. Read about the full spectrum of glaucoma diagnosis and treatment. Please also read about Diurnal Variation of IOP, Target IOP and Glaucoma Eye Drops.

You may want to watch this podcast I did several years ago, for Health Talks.


Note: Contact Lens Monitor for Continuous IOP Monitoring

Triggerfish® contact lens sensor is a specialised diagnostic contact lens used in glaucoma care to monitor intraocular pressure (IOP)–related changes over 24 hours. Unlike routine pressure measurements taken during clinic hours, the Triggerfish lens (Sensimed Triggerfish) helps detect pressure fluctuations that may occur at night or outside OPD visits, which can sometimes explain progression despite apparently controlled readings. It does not measure pressure directly in mmHg but records circumferential corneal changes related to IOP patterns, helping glaucoma specialists better understand individual risk profiles and treatment needs in selected patients.

Dr Shibal Bhartiya was the first doctor in India to use the Triggerfish® contact lens sensor for Continuous IOP Monitoring in clinical practice. Her initial experiences on Intraocular pressure (IOP) related pattern in patients with primary angle closure (PAC) and primary angle closure glaucoma (PACG) before and after laser peripheral iridotomy (LPI) was presented at ARVO, in Orlando Florida in 2014

IOP Fluctuation and Angle Closure Glaucoma

IOP fluctuation is a particular concern in angle closure disease, where pressure spikes can be steep and are frequently missed by routine daytime readings. Dr Bhartiya’s published research has examined this directly. A 2015 study in the Journal of Current Glaucoma Practice, Diurnal Intraocular Pressure Fluctuation in Eyes with Angle-Closure (Bhartiya S, Ichhpujani P; PMID: 26997828), investigated IOP fluctuation across the day in 77 newly diagnosed angle closure patients and documented the range and pattern of diurnal variation in this group.

A 2019 review in the Romanian Journal of Ophthalmology, Diurnal Variation of IOP in Angle Closure Disease: Are We Doing Enough? (Bhartiya S et al.; PMID: 31687621), went further — finding that many clinical decisions in angle closure glaucoma management are based on only one or two IOP measurements, and arguing that this is insufficient given the established circadian rhythm of IOP and its direct correlation with glaucoma progression. Taken together, these papers make the case that angle closure patients may be among the most undertreated precisely because their worst pressure moments are the least observed.


About the Author

This article was written by Dr Shibal Bhartiya, fellowship-trained glaucoma specialist and Mayo Clinic Research Collaborator, Clinical Director at Marengo Asia Hospitals, Gurugram, known for ethical, patient-centred glaucoma care and independent glaucoma second opinions. She is also the Program Director for Community Outreach & Wellness; and for the Marengo Asia International Institute of Neuro and Spine.

As Editor-in-Chief of Clinical and Experimental Vision and Eye Research and Executive Editor of the Journal of Current Glaucoma Practice (PubMed-indexed, official journal of the International Society of Glaucoma Surgery), Dr Shibal Bhartiya brings editorial and research depth to every clinical decision. Her 200+ publications, including 90+ PubMed-indexed publications and 28 edited textbooks, span glaucoma biology, surgical outcomes, health equity, and emerging diagnostics.

1,500+ Five Star Patient Reviews — Google Business Profile

Read her research on PubMed | Google Scholar | ResearchGate | ORCID

Upload your reports for a structured review. | www.drshibalbhartiya.com | +91 88826 38735

Leave a review on Google

Glaucoma Care in Gurgaon

Glaucoma is the leading cause of irreversible blindness worldwide. It is a progressive optic nerve disease that can silently damage vision much before symptoms become obvious. Early diagnosis, OCT imaging, visual field testing, and long-term monitoring are essential to reducing the risk of irreversible vision loss.

Superspecialty glaucoma care means catching that damage early, tracking it precisely, and making treatment decisions that are built around your individual risk, not a standard protocol.

Dr Shibal Bhartiya is a fellowship-trained glaucoma specialist and Mayo Clinic Research Collaborator with over 25 years of experience. Her approach focuses on identifying risk before damage is irreversible, simplifying treatment decisions, and protecting vision long-term. Emphasis on early detection, risk assessment, and continuity of care. She is rated 5 stars across 1,500+ patient reviews on Google

Glaucoma Care in Gurgaon: Diagnosis, Treatment, and Second Opinions

Most people who arrive at a glaucoma consultation did not expect to be there.

Perhaps a routine eye check flagged your optic nerve. Maybe a parent lost vision to glaucoma and you want to know your own risk. Perhaps you have been on drops for years and something still doesn’t feel right. Whatever brought you here, you are asking the right question at the right time, because in glaucoma, timing is everything.

The nerve fibres that glaucoma destroys do not regenerate. Vision lost to this disease does not return. But vision that has not yet been lost can almost always be protected, if the disease is identified accurately, monitored carefully, and managed by a specialist with the training to interpret what the tests are actually showing.

This is what superspecialty glaucoma care means in practice.


What Glaucoma Actually Is

Glaucoma is not a single disease. It is a family of conditions that share one defining feature: progressive damage to the optic nerve, the cable that carries visual information from your eye to your brain.

In most forms of glaucoma, elevated intraocular pressure — the fluid pressure inside the eye — is the primary driver of that damage. But pressure is not the whole story. Roughly a third of glaucoma patients have pressures that fall within the normal range. In these patients, the nerve is vulnerable for reasons that go beyond simple mechanics — vascular supply, structural anatomy, and systemic factors all play a role.

This is why glaucoma cannot be managed by pressure alone. It requires a trained eye on the nerve itself.

The most common forms of glaucoma

Primary open-angle glaucoma is the most prevalent form globally and in India. It develops slowly, painlessly, and without warning. By the time peripheral vision is affected, significant nerve damage has usually already occurred.

Normal tension glaucoma is systematically underdiagnosed in India. Patients with pressures in the normal range are often reassured and discharged — while damage continues. Identifying this condition requires looking beyond the pressure reading.

Angle-closure glaucoma is more common in Asian populations. It can present as a sudden, painful emergency — or develop slowly and silently in the chronic form. A detailed anterior segment assessment is essential to detect the anatomical risk before a crisis occurs.

Childhood and secondary glaucomas require specialist evaluation. Secondary glaucomas — arising from inflammation, steroid use, trauma, or systemic conditions — are frequently missed or mismanaged without subspecialty input.


Why Superspecialty Training Changes Outcomes

A general ophthalmologist is trained to detect glaucoma and initiate treatment. A fellowship-trained glaucoma subspecialist is trained to do something more precise: to distinguish true progression from test variability, to select the right intervention at the right disease stage, and to manage the full complexity of a condition that evolves over decades.

The difference becomes most visible in three situations.

When the diagnosis is uncertain. Glaucoma suspects — patients with suspicious optic nerves or borderline pressures who do not yet meet diagnostic criteria — require careful longitudinal monitoring. The decision of when to treat, and how aggressively, requires experienced clinical judgement.

When progression occurs despite treatment. Patients who worsen on drops are not simply non-compliant. They may have nocturnal pressure spikes, inadequate pressure targets, or structural vulnerability that requires a different therapeutic approach entirely.

When surgery is on the table. The glaucoma surgical landscape has changed significantly with the advent of MIGS — minimally invasive glaucoma surgery. Knowing when MIGS is appropriate, which device fits which patient, and when conventional filtration surgery remains the better option requires a surgeon who operates across the full spectrum.


What to Expect at This Practice

My approach to glaucoma care is built around four principles.

Catch it before it matters. Early detection requires looking beyond the standard pressure check — at the optic nerve structure, the retinal nerve fibre layer on OCT, and the visual field pattern over time. I look for the signal before the symptom.

Track it with precision. A single test is a photograph. Glaucoma management requires a series of photographs — read by someone who understands what change looks like, and what normal variation looks like. I review trends, not snapshots.

Treat it at the right stage. Not every glaucoma patient needs surgery. Not every glaucoma patient can be managed on drops alone. The treatment plan is built around your disease stage, your lifestyle, your pressure target, and your individual risk of progression.

Protect the ocular surface. Long-term glaucoma drops affect the surface of the eye in a significant proportion of patients. Ocular surface disease reduces comfort, affects adherence, and is frequently undertreated. I address it as part of glaucoma management — not as a separate problem.

Glaucoma Care Covered in This Practice

Diagnosis and Detection

Medical Management

Monitoring and Progression

Surgery

Local and General

When to Come In

Book a superspecialty consultation if any of the following apply:

  • You have been told your optic nerve looks “suspicious” or “cupped”
  • You have a parent or sibling with glaucoma
  • You are on glaucoma drops and have never had a formal progression assessment
  • Your visual fields are worsening despite treatment
  • You have been recommended surgery and want a second opinion
  • You have high myopia — a significant independent risk factor for glaucoma
  • You use steroid drops, inhalers, or nasal sprays regularly

Glaucoma does not announce itself. By the time you notice something is wrong, the window for easy intervention may already be narrowing. Early assessment costs very little. Late diagnosis costs vision.


Frequently Asked Questions

What is the difference between a glaucoma specialist and a general eye doctor?

A glaucoma specialist has completed a dedicated fellowship — one to two years of focused training in glaucoma diagnosis, medical management, laser, and surgery — beyond standard ophthalmology residency. This training matters most in uncertain diagnoses, complex progression, and surgical planning.

How often should I have my eyes checked if I have glaucoma?

Most patients with established glaucoma require review every three to six months, including IOP measurement, OCT, and periodic visual field testing. The exact frequency depends on your disease stage, stability, and treatment response. Suspects require annual or biannual monitoring.

Can glaucoma be cured?

Glaucoma cannot currently be cured — but in the vast majority of patients, it can be controlled well enough to preserve functional vision for life. The key is early detection, accurate monitoring, and treatment that is adjusted as the disease evolves.

Is glaucoma hereditary?

Yes. First-degree relatives of glaucoma patients have a four to nine times higher risk of developing the condition. Screening siblings and adult children of affected patients is one of the most cost-effective interventions in glaucoma prevention.

What is MIGS and am I a candidate?

MIGS — minimally invasive glaucoma surgery — is a family of procedures designed to lower eye pressure with a safer profile than traditional filtration surgery. It is most appropriate for mild to moderate glaucoma. Not every patient is a candidate; appropriate selection requires subspecialty assessment.

You may want to listen to Dr Bhartiya answer some frequently asked questions here.


About the Author

This article was written by Dr Shibal Bhartiya, fellowship-trained glaucoma specialist and Mayo Clinic Research Collaborator, Clinical Director at Marengo Asia Hospitals, Gurugram, known for ethical, patient-centred glaucoma care and independent glaucoma second opinions. She is also the Program Director for Community Outreach & Wellness; and for the Marengo Asia International Institute of Neuro and Spine.

She has published peer-reviewed research on glaucoma management, examining how treatment decisions should balance medical evidence, patient preferences, and long-term vision outcomes.

As Editor-in-Chief of Clinical and Experimental Vision and Eye Research and Executive Editor of the Journal of Current Glaucoma Practice (Pubmed Indexed, official journal of the International Society of Glaucoma Surgery), Dr Shibal Bhartiya brings editorial and research depth to every clinical decision. Her 200+ publications, including 90+ PubMed-indexed publications and 28 edited textbooks span glaucoma biology, surgical outcomes, health equity, and emerging diagnostics.

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