HOW TO DO VISUAL FIELD

A visual field test checks your side (peripheral) vision and helps detect or monitor glaucoma and other optic nerve conditions. During the test, you look straight ahead and press a button whenever you notice lights appearing in different parts of your vision.

Automated static perimetry is the clinical gold standard for tracking glaucoma progression. Yet it is notoriously anxiety-inducing. High fixation losses and false positives corrupt diagnostic data when a patient is stressed. Active coaching before and during the test stabilises fixation, yields clean reproducible data, and transforms a feared exam into a collaborative clinical tool.

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.

How Patient-First Coaching Transforms Glaucoma Perimetry

Ask any glaucoma patient what part of their routine checkup they dread most. Nine out of ten will say the visual field test.

Sitting alone in a dark room, staring at a central yellow light, clicking a button for faint flashes you think you might be missing — it feels less like a diagnostic test and more like a high-stakes exam you are destined to fail.

A patient recently left a review that captured exactly why we approach this differently. They noted how other clinics seat you in the machine and tell you to press the clicker. No explanation. No preparation. Just anxiety and confusion. They described how, in our clinic, the entire experience was different. We walked them through what the visual field map actually shows. We explained the rhythm of the test before they started. They felt like a partner in their own care — not a passive subject.

You can read their experience here on Google.

When a patient understands that missing some flashes is a normal part of the machine’s threshold calculation, their heart rate drops. Their blinking stabilises. Their anxiety disappears.

That extra ten minutes of human coaching does not just produce a more comfortable patient. It produces pristine, accurate diagnostic data — the data we rely on to protect their optic nerve for decades.

What Actually Happens During a Visual Field Test

You sit with one eye covered and rest your chin on the machine. Your job is simple: keep looking at the central target and press the button whenever you notice a light anywhere in your side vision.

You are not expected to see every flash.

In fact, the machine deliberately presents lights that become increasingly faint to identify the threshold where vision transitions from “seen” to “not seen.” Missing some lights is not failure — it is how the test works.

Blink normally. Take short pauses if needed. If your attention drifts for a moment, do not panic and start clicking rapidly to catch up. The best visual field tests are usually not the fastest tests. They are the calmest.

The Most Common Mistake Patients Make

Patients often believe this is an intelligence test or a reaction-time test.

It is neither.

Trying too hard can sometimes reduce accuracy. Clicking every time you think a light might have appeared creates false positives. Chasing missed flashes leads to fatigue and fixation loss.

The goal is not perfection. The goal is honest responses.

Why One Visual Field Rarely Tells the Whole Story

A visual field is not interpreted in isolation.

Sleep, dry eye, anxiety, distraction, cataract, learning the machine, and even understanding instructions can influence a result.

That is why glaucoma decisions are usually made by combining visual fields with optic nerve examination, eye pressure, imaging, and change over time.

Protecting vision is rarely about one dramatic test result. It is about recognising patterns early and responding before change becomes irreversible.

FAQs

How do I prepare for a visual field test?

No special preparation is usually needed. Wear your glasses if advised, stay relaxed, and try to rest your eyes before the test.

Is a visual field test painful?

No. A visual field test is non-contact, painless, and usually takes only a few minutes for each eye.

Why do visual field tests need to be repeated?

Visual field tests help monitor change over time. In glaucoma, repeated tests are often more useful than a single result because they help detect progression early.

Why is the visual field test for glaucoma so stressful?

The test is designed to find the absolute limit of your peripheral vision. It presents flashes that are intentionally very faint, so feeling like you are missing lights or guessing is completely normal. This design triggers anxiety when the process is not explained beforehand. Preparation changes the entire experience.

How does anxiety affect the accuracy of a glaucoma perimetry test?

High anxiety leads to irregular blinking, rapid head movements, and false-positive clicking. These introduce significant noise into the results. An ophthalmologist cannot reliably distinguish true disease progression from a stressful test day. A coached, relaxed patient produces far more clinically reliable data.

What if I think I did badly on my visual field test?

Many patients feel they performed poorly, especially during early tests. A difficult test does not automatically mean glaucoma has worsened. Ophthalmologists interpret reliability measures, compare previous results, and look for repeatable patterns over time.

Am I Doing My Visual Field Test Wrong?

Most patients worry they are doing badly because they miss flashes or feel uncertain during the test. That feeling is normal. Visual field testing is designed to find the edge of what you can see, so missing lights is expected and does not mean you have failed.

Why Do I Keep Missing Lights on My Glaucoma Test?

The machine deliberately shows lights that become fainter and fainter to calculate your visual threshold. Missing some lights helps the test work properly. Trying to click for every possible flash often makes results less reliable than staying relaxed and responding naturally.

This page is part of the Advanced Glaucoma Care hub. Read about the full spectrum of glaucoma diagnosis and treatment.

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 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.

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

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

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

1500+ Five Star Patient Reviews Google Business Profile

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

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

Here are some patient stories

The English Teacher Who Began Painting Again

How to do visual fields

Uveitic glaucoma

When Glaucoma Keeps Progressing

Glaucoma can progress even with treatment. The most common reasons include suboptimal IOP control, non-adherence to drops, normal-tension progression, and unrecognised structural risk factors. Finding the cause and adjusting treatment early can prevent further vision loss, says Dr Shibal Bhartiya.

Glaucoma progresses in some patients despite regular treatment. This does not mean the treatment has failed, it means the treatment plan needs review.

Understanding why glaucoma advances is the first step toward stopping it. Several factors can drive progression even when eye pressure appears controlled.

What Does Progression Mean in Glaucoma?

Progression means measurable worsening of the optic nerve or visual field over time. Specialists confirm it using two or more reliable visual field tests and OCT imaging showing thinning of the retinal nerve fibre layer.

A single abnormal test does not confirm progression. Consistent change across multiple visits does.

Why Glaucoma Progresses Despite Drops

1. Eye Pressure Is Still Too High

The target intraocular pressure (IOP) is individual. A pressure that seems normal may still be too high for a given optic nerve. Studies show that lower IOP targets reduce progression rates in moderate and advanced glaucoma significantly.

If visual fields are worsening, the current pressure target may need revision downward.

2. Drops Are Not Working as Expected

Peak pressure often occurs in the early morning, outside clinic hours. A single office reading may miss harmful pressure spikes. Diurnal IOP curves — tested over several hours — can reveal fluctuations that drive unseen damage.

3. Non-Adherence to Eye Drop Therapy

Studies using electronic monitoring show that patients use drops correctly only 50 to 70 percent of the time. Missing doses, incorrect technique, or preservative intolerance all reduce drug efficacy. Non-adherence is the most correctable cause of progression.

4. Normal-Tension Glaucoma Behaving Differently

Some patients have optic nerve damage at pressures within the normal range. This is normal-tension glaucoma (NTG). It may involve poor vascular supply to the nerve, sleep apnoea, low blood pressure at night, or other systemic factors that drops alone cannot address.

5. Structural Risk Factors Not Yet Addressed

Thin corneas cause IOP readings to appear falsely low. A myopic or tilted optic disc is harder to interpret on imaging. Disc haemorrhages are a strong marker of ongoing progression and must be documented carefully.

6. Systemic Factors Affecting the Optic Nerve

Low systolic blood pressure, anaemia, sleep apnoea, and vascular disorders can reduce blood flow to the optic nerve. Treating these conditions alongside glaucoma can slow visual field loss in susceptible patients.

Reason for Progression	What It Means	Next Step
IOP target not low enough	Nerve still under excess pressure	Lower target IOP or add therapy
Pressure spikes between visits	Diurnal fluctuation causing damage	Diurnal IOP curve or 24-hour monitoring
Drop non-adherence	Inconsistent pressure lowering	Technique review, preserve-free drops, fixed combos
Normal-tension glaucoma	Vascular or non-pressure mechanism	Systemic workup, cardiology review
Thin cornea or high myopia	IOP underestimated by tonometry	Corneal-corrected IOP, adjusted targets
Disc haemorrhage	Active ischaemia at optic nerve	Close follow-up, often signals rapid progression
Systemic comorbidity	Poor vascular supply to nerve	Treat sleep apnoea, anaemia, hypotension

When to Consider Laser or Surgery

If maximum tolerated medical therapy does not achieve the revised IOP target, laser trabeculoplasty (SLT) or surgery becomes necessary. Selective laser trabeculoplasty is effective in open-angle glaucoma and can reduce the drop burden significantly.

Minimally invasive glaucoma surgery (MIGS) procedures such as iStent and iStent inject offer an option for mild to moderate glaucoma with lower surgical risk. Trabeculectomy remains the benchmark for advanced disease requiring very low pressures.

Dr Shibal Bhartiya’s published research includes peer-reviewed work on 24-hour IOP monitoring and diurnal pressure fluctuation: one of the most under-recognised drivers of progression in treated glaucoma. She has co-authored guidelines on surgical decision-making when medical therapy fails to halt optic nerve damage. As Clinical Director of Ophthalmology at Marengo Asia Hospitals, Gurugram, she manages complex progression cases with a structured protocol: reassess the IOP target, confirm adherence, evaluate vascular and systemic risk, and escalate to laser or surgery when the nerve continues to lose ground.

How Often Should You Be Reviewed?

Patients with progressing glaucoma need more frequent review — often every three to four months. Visual fields should be repeated at least four times a year if progression is suspected. OCT of the optic nerve head and RNFL should accompany each visit.

Waiting six or twelve months between visits when progression is active is not safe practice.

The Role of a Second Opinion

Glaucoma management decisions are complex. If your visual fields continue to worsen, a second opinion from a fellowship-trained glaucoma specialist adds value. Fresh eyes on your imaging, IOP pattern, and structural data can identify a missed cause.

Bringing your previous visual fields, OCT scans, and medication list to the consultation helps the specialist assess the rate of change accurately.

Known for her structured approach to glaucoma risk assessment and progression analysis, Dr Shibal Bhartiya provides trusted second opinions for patients seeking clarity before major treatment decisions. Both, in person, and online.

Frequently Asked Questions

Can glaucoma progress even with normal eye pressure?

Yes. Normal-tension glaucoma progresses at IOP readings within the statistical normal range. The optic nerve in these patients is more sensitive to pressure or more dependent on blood supply. Treatment often involves additional systemic assessment alongside IOP lowering.

How do I know if my glaucoma is progressing?

Your specialist tracks visual field tests and OCT scans over time. Progression is confirmed when two or more reliable tests show consistent worsening. You may not notice early progression — which is why regular monitoring matters.

What pressure should I aim for if my glaucoma is progressing?

The target varies by disease severity and rate of progression. Advanced or rapidly progressing glaucoma typically requires a target below 12 mmHg. Your specialist calculates this based on your structural damage and life expectancy.

Are there lifestyle changes that help slow progression?

Regular aerobic exercise, avoiding head-down positions such as headstands, good sleep hygiene, and managing vascular risk factors all support optic nerve health. Omega-3 supplementation and antioxidant nutrition are areas of ongoing research.

Is surgery the only option if drops stop working?

Not always. Selective laser trabeculoplasty is a non-incisional option that works well in many patients. If laser is not sufficient, MIGS procedures offer a middle path between drops and conventional surgery.

Consult a Glaucoma Specialist

If your glaucoma is progressing despite treatment, you need a specialist review, not just a medication change. The cause must be identified before the right intervention can be chosen.

About the Author

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

Access her work on Pubmed, Google Scholar, ResearchGate and ORCID.

Dr Shibal Bhartiya
Glaucoma • Second Opinion • Advanced Care

www.drshibalbhartiya.com
+91 88826 38735

1500+ Five Star Patient Reviews Google Business Profile

Upload your reports for a structured review.

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

Glaucoma in India: Why the Risk Is Higher Than You Think

Glaucoma is the most common cause of irreversible blindness in India, and 90% of cases remain undiagnosed. That means nine out of every ten people with glaucoma in this country do not know they have it. An estimated 11.2 million Indians aged 40 and above have glaucoma. And angle closure glaucoma is more common in India, than in the West, says Dr Shibal Bhartiya. Glaucoma in India is often missed or undertreated because it progresses silently, even when vision and eye pressure appear normal. Good glaucoma care focuses on early detection, risk-based monitoring, and long-term protection of vision, not just adding more eye drops.

Glaucoma does not give you a warning. You lose peripheral vision first. By the time you notice something is wrong, damage is already done. The good news is that glaucoma detected early is highly manageable. Blindness from glaucoma is largely preventable with timely diagnosis and consistent treatment.

In India, this story plays out every day at a scale that is hard to comprehend. Dr Shibal Bhartiya, fellowship trained glaucoma specialist in Gurgaon, explains more about Glaucoma in India, and Indians.

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.

Why Indians Are at Higher Risk

Indians carry specific anatomical and genetic traits that raise their glaucoma risk. One of the most significant is a shallower anterior chamber angle. This makes angle-closure glaucoma far more common in Indian and South Asian eyes than in Western populations.

Primary angle-closure disease may affect as many as 27.6 million Indians. Patients with primary angle-closure glaucoma are twice as likely to go blind compared to those with open-angle glaucoma. Yet this form is frequently missed or misdiagnosed.

Indians also present with glaucoma at a younger age than patients in Western populations. Juvenile open-angle glaucoma, which begins between the ages of 16 and 40, is well documented in Indian tertiary centre data. A family history of glaucoma raises your personal risk significantly. If a parent or sibling has glaucoma, your chances of developing it are much higher.

Other risk factors specific to the Indian context include:

Steroid use without medical supervision, myopia (short-sightedness), diabetes, and a family history of glaucoma are all important risk factors to discuss with your doctor.

The Problem of Late Presentation

Most glaucoma in India is detected late. Very late.

In India, undetected and untreated glaucoma leads to faster progression, earlier visual impairment, and preventable blindness. The core reason is that glaucoma causes no pain and no blur in the early stages. People feel completely fine. They see no reason to visit an eye doctor.

By the time central vision is affected, up to 90% of peripheral nerve fibres may already be lost. That damage cannot be reversed. No surgery, no medication, and no intervention brings that vision back.

This is what makes early screening so critical. You cannot feel glaucoma coming. You can only catch it on examination.

The Scale of the Problem in India

Glaucoma prevalence among Indians aged 40 and above ranges between 2.7% and 4.3% across multiple population-based studies. In those over 70 years of age, the risk rises sharply. Studies show glaucoma affects over 8% of Indians in their seventies and over 14% of those above 80.

Glaucoma is a leading cause of irreversible blindness globally, and the burden in Asia and India is expected to grow substantially by 2040.

India does not have enough glaucoma specialists to manage this burden. Most patients are diagnosed and managed by general ophthalmologists. Structured, specialist-led care makes a real difference to outcomes.

What Makes Glaucoma in Indians Different to Manage

Treating glaucoma in an Indian patient requires a different approach than using a standard Western protocol.

Indian eyes tend to have thinner corneas. Corneal thickness affects how accurately we measure intraocular pressure (IOP). A thin cornea can make the pressure appear lower than it actually is. This leads to underdiagnosis and undertreatment. Also, thinner corneas are an independent risk factor for glaucoma progression.

Angle-closure disease needs gonioscopy, a specialised examination to assess the drainage angle of the eye. Studies have found that a significant proportion of patients in India are incorrectly treated for open-angle glaucoma when they actually have angle-closure disease.The treatment for these two types is fundamentally different.

Normal tension glaucoma (NTG), where optic nerve damage occurs despite normal eye pressure, is also seen in Indian patients. This form requires looking beyond IOP and addressing other risk factors including blood pressure, sleep patterns, and vascular health.

How I Approach Glaucoma in Indian Patients

I have spent 25+ years specialising in glaucoma. I see this disease in its full Indian context, not through a textbook written for another population.

My clinical approach includes a full angle assessment with gonioscopy for every new patient, corneal thickness measurement to ensure accurate pressure readings, structural imaging with OCT to detect early nerve fibre loss, visual field analysis (with special emphasis on reliability criteria) and a detailed risk factor review including family history, steroid use, and systemic health.

Correct classification, open-angle versus angle-closure, changes treatment completely. Getting this right at the first visit prevents years of inadequate care.

I also believe in clear communication. Glaucoma is a lifelong condition. You need to understand what you have, why treatment matters, and what to monitor. I take the time to explain this at every visit.

If you have a family history of glaucoma, are over 40, have diabetes, are short-sighted, or use steroid eye drops, you need a glaucoma screening now.

Clinical Reality (What’s Not Always Obvious in Glaucoma Care in India)

Normal vision does not mean no glaucoma
Many patients read 6/6 and still have significant optic nerve damage.
Symptoms are often absent until late
Glaucoma is typically silent — by the time patients notice vision loss, it is often irreversible.
Eye pressure (IOP) alone is not enough
Patients can progress despite “normal” pressures — especially in normal-tension glaucoma, which is common in India.
Tests in isolation can mislead
A single OCT or visual field report cannot define disease. Progression over time is what matters.
Cataract and glaucoma often coexist — but are not interchangeable explanations
Improving vision after cataract surgery does not mean glaucoma risk is gone.
More medications ≠ better control
Multiple drops without a clear long-term plan often reflect escalation without strategy.
Follow-up gaps are a major cause of vision loss
Irregular monitoring is one of the biggest real-world failures in glaucoma care.
Family history is under-recognised and under-screened
Many high-risk individuals in India are never examined until damage has already occurred.

What Good Glaucoma Care Looks Like (Indian Context)

Early risk identification — even before symptoms
Screening is guided by age, family history, corneal thickness, optic nerve appearance — not just complaints.
Baseline documentation and longitudinal tracking
OCT and visual fields are used to establish a baseline and detect change, not just diagnose once.
Target pressure is individualised
Treatment is tailored based on stage of disease, risk profile, and rate of progression — not a fixed number.
Medication strategy is structured, not reactive
Each drop has a purpose. Escalation is thoughtful, not additive.
Patient understanding is prioritised
Patients are told what to watch for: subtle visual changes, adherence issues, side effects.
Consistency over intensity
Regular follow-up (every 3–6 months depending on risk) matters more than aggressive but irregular care.
Second opinions are used appropriately
Especially when:
- Disease is progressing despite treatment
- Multiple medications are being used
- Surgery is being considered
The goal is not just seeing clearly — but seeing safely for life
Glaucoma care is long-term risk management, not short-term vision correction.

Remember

Situation	What Patients Often Assume	Clinical Reality (India Context)	What Good Care Looks Like
Vision is normal	“I can see clearly, so everything is fine”	Glaucoma can cause optic nerve damage even with 6/6 vision	Risk-based screening and optic nerve evaluation, even without symptoms
No symptoms	“No discomfort means no disease”	Glaucoma is silent until late stages	Early detection through structured exams, not symptom-driven visits
Eye pressure (IOP)	“My pressure is normal, so I’m safe”	Progression can occur even at normal IOP (common in India)	Individualised target IOP based on risk and progression
Single test reports	“My OCT/field test is normal”	One report is not enough — change over time matters	Baseline + serial comparison to detect progression
Cataract vs glaucoma	“Cataract surgery fixed my vision, so I’m okay”	Cataract improvement can mask underlying glaucoma	Parallel evaluation of optic nerve even in cataract patients
Multiple eye drops	“More drops means stronger treatment”	Overmedication may reflect lack of strategy	Structured medication plan with defined goals
Follow-up gaps	“I’ll come back if I feel a problem”	Irregular follow-up is a major cause of preventable vision loss	Scheduled monitoring every 3–6 months based on risk
Family history	“No one told me to get checked”	High-risk individuals often remain unscreened in India	Proactive screening for family members
Treatment approach	“Doctor will adjust if needed”	Reactive care often misses slow progression	Long-term planning with defined targets and timelines
Understanding disease	“Drops are enough”	Poor understanding leads to poor adherence	Clear patient education on disease, risks, and expectations
Escalation decisions	“Add another drop if pressure rises”	Escalation without strategy leads to confusion and side effects	Stepwise, purpose-driven escalation or de-escalation
Goal of care	“I just need to see clearly”	Vision clarity ≠ visual safety	Focus on lifelong preservation of functional vision

FAQs: Glaucoma in Indians

Is glaucoma more common in Indians?

Yes. Indians face a higher risk than many Western populations for two main reasons. First, Indian eyes tend to have a shallower drainage angle, which makes angle-closure glaucoma significantly more common. Second, glaucoma in Indians often develops at a younger age and is detected later, by which time substantial nerve damage has already occurred.

Can Indians get glaucoma even with normal eye pressure?

Yes. Normal tension glaucoma (NTG) occurs when the optic nerve is damaged despite intraocular pressure readings within the normal range. This form is well documented in Indian patients. It is one reason why pressure measurement alone is not enough. A full glaucoma evaluation includes optic nerve imaging and visual field testing.

What are the early signs of glaucoma in Indians?

In most cases, there are no early signs. Glaucoma is called the silent thief of sight because it causes no pain and no blurred vision until the disease is advanced. Peripheral vision goes first, and most people do not notice this until significant damage has occurred. The only reliable way to detect early glaucoma is a comprehensive eye examination.

Who should get screened for glaucoma in India?

Anyone over 40 should have a baseline glaucoma check. Screening is especially important if you have a family history of glaucoma, are short-sighted, have diabetes, use steroid eye drops, or have previously been told your eye pressure is elevated. Earlier screening is recommended if more than one risk factor applies.

How is glaucoma treated in Indian patients?

Treatment depends on the type of glaucoma. Angle-closure glaucoma, which is more common in Indians, often requires laser treatment (laser peripheral iridotomy) in addition to or instead of eye drops. Open-angle glaucoma is typically managed with pressure-lowering drops, laser, or surgery. The right treatment must be matched to the specific type of glaucoma you have, which is why correct diagnosis through gonioscopy and full assessment is essential.

If you have been told you have glaucoma but have not had gonioscopy or a visual field or OCT imaging, a structured second opinion can clarify your diagnosis and treatment plan.

Book a consultation with Dr Shibal Bhartiya:

Marengo Asia Hospitals, Gurugram

Phone: +91 88826 38735

Website: drshibalbhartiya.com

Google Business Profile: maps.app.goo.gl/mcfegmHTuhqV5hSp6

Read the research articles

Read the research articles

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.

Available on Pubmed and Google Scholar

Dr Shibal Bhartiya
Glaucoma • Second Opinion • Advanced Care

www.drshibalbhartiya.com
+91 88826 38735

Patient reviews Google Business Profile

Upload your reports for a structured review.

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

Glaucoma AI Detection: Does it Save Sight?

Posted on April 22, 2026April 21, 2026 by Dr Shibal Bhartiya

AI can now detect glaucoma from a fundus photograph with a sensitivity of over 90% — but the more important…

How Patient-First Coaching Transforms Glaucoma Perimetry

What Actually Happens During a Visual Field Test

The Most Common Mistake Patients Make

Why One Visual Field Rarely Tells the Whole Story

FAQs

How do I prepare for a visual field test?

Is a visual field test painful?

Why do visual field tests need to be repeated?

Why is the visual field test for glaucoma so stressful?

How does anxiety affect the accuracy of a glaucoma perimetry test?

What if I think I did badly on my visual field test?

Why Do I Keep Missing Lights on My Glaucoma Test?

About the Author

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

What Glaucoma Actually Is

The most common forms of glaucoma

Why Superspecialty Training Changes Outcomes

What to Expect at This Practice

Glaucoma Care Covered in This Practice

Diagnosis and Detection

Medical Management

Monitoring and Progression

Surgery

Local and General

When to Come In

Frequently Asked Questions

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

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

Can glaucoma be cured?

Is glaucoma hereditary?

What is MIGS and am I a candidate?

What Does Progression Mean in Glaucoma?

Why Glaucoma Progresses Despite Drops

When to Consider Laser or Surgery

How Often Should You Be Reviewed?

The Role of a Second Opinion

Frequently Asked Questions

Can glaucoma progress even with normal eye pressure?

How do I know if my glaucoma is progressing?

What pressure should I aim for if my glaucoma is progressing?

Are there lifestyle changes that help slow progression?

Is surgery the only option if drops stop working?

Consult a Glaucoma Specialist

About the Author

Related Reading

Why Indians Are at Higher Risk

The Problem of Late Presentation

The Scale of the Problem in India

What Makes Glaucoma in Indians Different to Manage

How I Approach Glaucoma in Indian Patients

Clinical Reality (What’s Not Always Obvious in Glaucoma Care in India)

What Good Glaucoma Care Looks Like (Indian Context)

Remember

FAQs: Glaucoma in Indians

Is glaucoma more common in Indians?

Can Indians get glaucoma even with normal eye pressure?

What are the early signs of glaucoma in Indians?

Who should get screened for glaucoma in India?

How is glaucoma treated in Indian patients?

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For patients who live elsewhere, I’m happy to work in partnership with your local eye doctor to guide and support your care over time.