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

Finding	Likely Cause	When to Investigate Further
Glaucoma progressing despite good clinic IOP	Nocturnal IOP spike not captured by daytime readings	Request 24-hour diurnal variation assessment
On timolol or brimonidine, still progressing	Night-time loss of drug efficacy	Ask whether a prostaglandin has been considered
Visual field deterioration at routine review	Ongoing IOP fluctuation between clinic visits	IOP fluctuation may be as damaging as sustained elevation
Good compliance, good lifestyle, still progressing	Medication class mismatch for 24-hour coverage	Second opinion from glaucoma specialist
Pressure controlled but OCT showing RNFL thinning	Structural damage continuing despite IOP numbers	Full 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 and Headaches

Acute and intermittent angle closure glaucoma can present with severe headache, nausea, vomiting, and coloured haloes around lights — symptoms so closely overlapping with migraine that patients spend years in neurology before anyone examines their drainage angles. A gonioscope placed at a routine eye examination can reveal in minutes what years of migraine treatment cannot resolve.

For patients with narrow angles, a laser peripheral iridotomy, a five-minute outpatient procedure — may eliminate the trigger entirely. The eye and the head are not separate systems.

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.

Seven Years of Migraines That Disappeared After a Routine Eye Examination

She was in her late forties or early fifties. She had no eye complaints.

It was a routine check — glasses, perhaps a small change in power. I noticed a shallow anterior chamber, explained she needed a gonioscopy. Asked her if she had experienced any headaches, or coloured haloes around lightbulbs.

She talked. She had been living with migraines for seven to eight years. Treatment after treatment. Specialist after specialist. The headaches kept coming.

If you are reading this after years of treatment that has not worked, I want you to know: that exhaustion is real, and it is not in your head. But the answer sometimes is — in your eyes.

I looked at her angles. They were narrow. Both eyes.

What a gonioscope found that years of migraine treatment missed

I placed a gonioscope, a contact lens with a mirror that allows direct visualisation of the eye’s drainage angle, and examined both eyes carefully. She had primary angle closure. Peripheral anterior synechiae were present in roughly a quadrant of each eye — meaning parts of the drainage angle had already begun to stick shut. Her IOP was in the range of 22 to 24 mmHg.

A standard migraine workup does not include a gonioscope. A glaucoma specialist examination does.

Why angle closure symptoms feel exactly like a migraine

In intermittent angle closure, the drainage angle narrows and blocks without fully closing. Pressure builds, then releases. The episode passes. No one connects it to the eye.

During these episodes, the symptoms are: severe throbbing headache, nausea, vomiting, coloured haloes around lights and streetlamps, eye redness, and a deep ache around the orbit. These are textbook migraine symptoms. They are also textbook intermittent angle closure symptoms. Without a gonioscope, there is no way to tell them apart from a history alone.

If your migraines have not responded to treatment, or if your headaches come with coloured halos or eye pain, a glaucoma specialist examination may give you answers years of headache treatment have not.

Book a consultation with Dr Shibal Bhartiya in Gurgaon. Second opinions welcome.
+91 88826 38735 | www.drshibalbhartiya.com

Symptoms, Causes, and When to Worry

Symptom	Likely Cause	When to Worry
Severe throbbing headache	Intermittent IOP spike from narrow angles	Attacks are recurring, not relieved by migraine medication
Nausea and vomiting with headache	Acute pressure rise, vagal response	Accompanying eye redness or blurred vision
Coloured halos around lights	Corneal oedema from raised IOP	Any episode with halos warrants urgent eye evaluation
Eye ache or pain around orbit	Elevated intraocular pressure	Persists beyond the headache episode
Blurred vision during headache	Raised IOP affecting corneal clarity	Vision does not fully recover after episode
Headache worse in dim light or evening	Pupil dilation narrows angles further	Consistent pattern linked to lighting conditions

What Doctors Often Miss

Neurologists and general physicians are not trained to examine drainage angles. That is not a criticism — it is a structural gap. A gonioscope is a specialist instrument used by ophthalmologists and glaucoma specialists. It is not part of a standard headache workup, and it is not part of most routine optometry checks either.

The result is that intermittent angle closure goes undiagnosed for years in patients who are otherwise receiving excellent neurological care. The migraine label is applied because the symptoms fit. The eye is never examined. The pressure spikes continue.

If you have been diagnosed with migraines and you have never had your angles examined, that is worth a second opinion from a glaucoma specialist.

The other missed signal is coloured halos. Many patients mention them. Fewer doctors follow up specifically on the eye examination that halos warrant.

A five-minute laser. Ten migraine-free years.

We performed a laser peripheral iridotomy — a small opening in the iris, made with a laser, in the clinic, in under ten minutes. It allows aqueous fluid to flow freely, relieves intermittent pressure build-up, and eliminates the trigger that narrow angles create.

That was ten years ago.

She has not had a single migraine attack since.

An occasional headache, she tells me — but she has her own explanation for those. “Those are because of who I am married to,” she said.

Whether the angle closure was the direct cause of her migraines or a powerful intermittent trigger, the outcome speaks for itself. A gonioscope at a routine eye check gave her back ten years of her life.

What This Means for You

Narrow angles produce no symptoms between episodes. An eye that looks entirely normal — good vision, no redness, no pain — can have drainage angles that are quietly narrowing with every passing year.

The only way to know is an examination that includes gonioscopy. If you have recurring headaches that have not responded to treatment, if your headaches come with coloured halos or eye pain, or if you have a family history of glaucoma, angle closure, or are significantly long-sighted — ask your eye doctor specifically whether your angles have been examined.

A laser peripheral iridotomy takes ten minutes. The benefit, as one patient told me a decade later, can last a lifetime.

FAQs

Can narrow angles or angle closure actually cause migraines?

Narrow angles cause intermittent spikes in eye pressure. These spikes produce headache, nausea, vomiting, eye pain, and coloured haloes — symptoms that overlap significantly with migraine. Whether angle closure directly causes migraines or acts as a powerful intermittent trigger remains an open clinical question. What is well-documented is that some patients with long-standing treatment-resistant headaches find complete or substantial relief after laser iridotomy.

How do angle closure symptoms mimic a migraine attack?

The overlap is striking and clinically important. Acute or intermittent angle closure can cause severe throbbing headache, nausea and vomiting, coloured haloes around lights and streetlamps, eye redness, blurred vision, and a dull ache around the eye socket. Many patients — and sometimes their doctors — attribute these episodes to migraine, tension headache, or stress for years. The eye is rarely examined. A gonioscope at one routine visit can change everything.

What are coloured haloes and why do they appear in angle closure?

When eye pressure rises suddenly, fluid accumulates in the cornea. This causes light to scatter as it enters the eye, producing rainbow-coloured rings around light sources — bulbs, headlights, streetlamps. Coloured haloes are a warning sign. They warrant an urgent eye evaluation, not just a change in glasses. If your headaches come with haloes around lights, tell your eye doctor specifically.

What is a laser peripheral iridotomy and is it a major procedure?

It is a minor outpatient laser procedure done in the clinic, usually in under ten minutes. A small opening is created in the iris to allow fluid to drain freely and relieve the pressure build-up caused by narrow angles. There is no incision, no hospitalisation, and no general anaesthesia. Most patients resume normal activity the same day.

Who should be screened for narrow angles?

Anyone with a family history of angle closure glaucoma, anyone of East or South Asian descent, anyone who is significantly long-sighted (hypermetropic), and anyone over 40 with unexplained recurrent headaches, eye ache, or coloured haloes around lights. Narrow angles cause no symptoms until a pressure spike begins — and by then, some damage may already have occurred.

Can treating narrow angles prevent glaucoma entirely?

In many cases, yes. A timely laser iridotomy in a patient with primary angle closure — before significant optic nerve or drainage angle damage — can halt the glaucoma disease process entirely. This is why early detection matters. The laser takes minutes. The benefit can last a lifetime.

This page is part of the Advanced Glaucoma Care hub. Read about the full spectrum of glaucoma diagnosis and treatment. Please also read about Laser Treatments for Glaucoma, Narrow Angles and Gonioscopy.

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

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

Second Opinion Before Eye Surgery

A second opinion before eye surgery can help confirm the diagnosis, review alternative treatment options, assess surgical necessity, and ensure the chosen procedure is appropriate for your eye condition and long-term visual goals. Seeking a second opinion may improve confidence in your treatment decision, identify overlooked risks or alternatives, and help you make a well-informed choice before undergoing cataract, glaucoma, retinal, corneal, or refractive eye surgery.

Getting a Second Opinion Before Eye Surgery: When to Ask, What to Bring, and Why It Matters A second opinion before eye surgery is not disloyalty to your doctor, it is due diligence. Eye surgery is elective in most cases, irreversible in all cases, and highly dependent on surgical judgment that can vary significantly between specialists. An independent second opinion either confirms you are on the right path, or it changes a decision that cannot be undone.

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 second opinions matter more in ophthalmology than most specialties

Most eye surgery is permanent. The lens removed in cataract surgery does not grow back. LASIK reshapes the cornea irreversibly. A filtering bleb created in glaucoma surgery changes the eye forever. Surgical decisions made on incomplete data, or by a surgeon whose judgment or equipment differs from another, can produce vastly different outcomes.

Second opinions also matter because ophthalmology has an exceptionally wide range of practice patterns. Two equally qualified surgeons may recommend completely different interventions for the same patient — one recommending early surgery, one watchful waiting; one recommending MIGS, one recommending trabeculectomy. Neither is necessarily wrong. But the patient deserves to understand the range of reasonable options.

When should you get a second opinion?

Get a second opinion when:

You have been told you need surgery but have no symptoms, or symptoms are mild. Elective surgery on an asymptomatic or minimally symptomatic eye warrants confirmation.

You have been offered a surgery you have not heard of before or that involves premium implants at significant additional cost. Understand what you are paying for and why.

You have had a previous eye surgery that did not produce the expected result. A second opinion helps distinguish between a surgical complication, unrealistic expectations, or a condition requiring further intervention.

You have glaucoma and have been advised to proceed to surgery without an adequate trial of drops or laser. Most glaucoma surgeons agree that surgery follows failure of medical and laser treatment — not precedes it, except in specific circumstances.

You have been told your cataract is ready for surgery but your vision is still functional. There is no universal threshold. The right time for surgery is when the cataract affects your quality of life — not when it looks a certain way on a slit lamp.

You feel rushed, unheard, or unclear about why the surgery is being recommended. These are legitimate reasons to pause.

You have a serious or rare condition — optic nerve tumour, uveal melanoma, complex retinal detachment — where surgical outcomes depend heavily on the surgeon’s volume and subspecialty experience.

What a second opinion can reveal

Confirmation of the first opinion: which is also valuable. Most second opinions confirm the initial recommendation. This should be reassuring, not redundant. Going into surgery with confidence in the recommendation is itself a benefit.

A different diagnosis entirely. Diagnostic errors in ophthalmology are more common than patients expect. Conditions misidentified as glaucoma, or retinal pathology missed on a routine exam, are regularly uncovered on second assessment.

A non-surgical alternative. The second specialist may offer laser treatment, medication optimisation, or observation as a reasonable alternative to surgery, options the first surgeon did not present or does not offer.

A different surgical approach. Cataract surgery with a standard monofocal IOL versus a premium multifocal or extended-depth-of-focus IOL. Conventional trabeculectomy versus MIGS. LASIK versus SMILE versus ICL. The choice of procedure materially affects outcome.

What to bring to a second opinion

All your prescriptions and records. Even if you think they are redundant. Previous OCT scans, optic nerve and macular; Visual field test results (Humphrey or Octopus), CCT, Gonioscopy, fundus photos for glaucoma. IOL power calculation reports if cataract surgery is planned. Corneal topography and pachymetry if refractive surgery is planned Current medication list including all eye drops. A written summary of the surgical recommendation and the reason given, will really help. Any operative notes, and discharge summaries, if you have had previous eye surgery

The second specialist needs data, not just a history. Bring everything.

What to ask at a second opinion

Do you agree with the diagnosis?
Do you agree that surgery is needed now, or could we watch and wait?
What are my options, and what are the risks and benefits of each?
What surgical approach would you use, and why?
How many of these procedures have you performed?
What result should I realistically expect?
What happens if I do not have surgery?

Surgery types and second opinion value

Surgery	Why a Second Opinion Helps	Key Questions to Ask
Cataract	IOL choice, timing, premium lens value	Do I need surgery now? Which IOL suits my lifestyle?
Glaucoma (trabeculectomy / MIGS)	Surgical threshold, procedure choice	Have I exhausted medical options? Which procedure fits my pressure target?
LASIK / SMILE / ICL	Candidacy, corneal safety, procedure choice	Am I a safe candidate? Is ICL safer for my corneal thickness?
Retinal detachment	Urgency and surgical approach	Which repair technique? What is the prognosis?
Strabismus	Surgical versus non-surgical options	Is surgery the only option? How much correction is planned?
Ptosis / lid surgery	Functional vs cosmetic threshold	Is this affecting my vision or just appearance?

What doctors often miss

Patients are often reluctant to seek a second opinion because they fear offending their doctor. A doctor who discourages a second opinion is a reason, not a reassurance, to get one. Ethical surgical practice welcomes independent review. Dr Shibal Bhartiya routinely encourages second opinions, including for her own recommendations.

The second opinion consultation is frequently underutilised because patients arrive without records. A second opinion without data is largely an opinion, not an assessment. Bring everything.

Glaucoma surgical decisions are particularly second-opinion-worthy. The threshold for surgery, the choice between MIGS and filtration surgery, and the IOP target are all areas of legitimate specialist variation. A patient recommended for trabeculectomy who has not tried all medical options and selective laser trabeculoplasty (SLT) deserves a careful second assessment.

Frequently asked questions

Will my doctor be offended if I seek a second opinion?

Any ethical doctor welcomes a second opinion. It protects both patient and surgeon. If your doctor discourages one, that is itself meaningful information.

Does a second opinion mean I don’t trust my doctor?

No. It means you are taking your health seriously. Second opinions are standard practice in oncology, cardiology, and neurosurgery. Ophthalmology should be no different, particularly for irreversible procedures.

How do I get my records for a second opinion?

You are entitled to copies of all your test results — OCT, visual fields, IOL calculations, topography. Ask the clinic reception. You do not need your doctor’s permission.

What if the two opinions differ?

A difference of opinion is not a problem, it is useful information. It tells you the decision is genuinely judgment-dependent. Ask both specialists to explain their reasoning. Sometimes a third opinion resolves ambiguity. Sometimes it reveals that both options are reasonable and the choice is yours.

Is a second opinion worth it before LASIK?

Yes, particularly if your corneas are thin, your myopia is high, or you have been told you are “borderline” for the procedure. LASIK on an unsuitable cornea can cause progressive corneal ectasia, a serious, irreversible complication. And an ICL may be a safer alternative.

Can I get a second opinion if surgery has already been scheduled?

Yes, and it is never too late. Surgery can be postponed. An irreversible outcome cannot be reversed.

Dr Shibal Bhartiya offers dedicated second opinion consultations for glaucoma, cataract, and complex eye surgery decisions in Gurgaon. Fellowship-trained, Mayo Clinic Research Collaborator, 25+ years of experience. Ethical, unhurried, evidence-based.

Bring your reports. Get clarity before you commit. 📞 +91 88826 38735 | Upload your reports for a structured review

A Second Opinion from AI

In an era where AI can analyse scans, summarise records, and identify patterns, the value of a second opinion is not simply getting another answer, it is gaining another layer of judgement. AI can help process information, but decisions about eye surgery still require clinical context, experience, risk assessment, and an understanding of how a recommendation fits into a patient’s life, goals, and long-term visual needs. A thoughtful second opinion can help patients move forward with greater clarity, confidence, and peace of mind.

So use ChatGPT and Claude and Gemini with absolute confidence. Discuss your fears and aspirations. Make notes. And carry them all- fears, notes, expectations- to your second opinion human doctor. I know I love an informed patient, and it is a pleasure to take care of people who invest their time and energy in their own care.

This article is a part of the Second Opinion Hub. Please also read Second Opinion in Glaucoma, Second Opinion Before Cataract Surgery, and Second Opinions in Eye Care.

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

Eyes Hurt After Screen Use

Eye discomfort after screen use is often caused by digital eye strain, dry eyes, reduced blinking, uncorrected vision problems, or prolonged focusing at close distances. If eye pain is severe, persistent, associated with blurred vision, headaches, redness, or does not improve with rest, a comprehensive eye examination can help identify underlying causes and rule out more serious eye conditions.

Eyes Hurt After Screen Use: Why It Happens and How to Stop It

Eye pain after screen use is digital eye strain — one of the fastest-growing eye complaints in India, and especially high tech cities like Gurgaon. It is caused by reduced blinking, sustained near focus, screen glare, and poor posture. It will not damage your eyes permanently in most cases. But it will get worse if ignored, and in some people it signals an underlying problem that deserves attention, explains Dr Shibal Bhartiya.

Dr Shibal Bhartiya is a fellowship-trained eye 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 screens hurt your eyes

When you look at a screen, blink rate drops by 60–70% — from a normal 15–20 blinks per minute to as few as 5. Each blink renews the tear film. When blinking stops, the tear film breaks up, the corneal surface dries, and pain receptors fire. Simultaneously, the ciliary muscle — which controls near focus — contracts continuously for hours. Sustained ciliary spasm produces a deep aching pain behind the eyes that worsens through the day.

Add screen glare, blue-wavelength light, and forward head posture compressing the cervical spine — and you have the full picture of why screens hurt.

Symptoms of digital eye strain

Burning or aching in or around the eyes. Blurry vision that fluctuates. Headache — typically frontal, worse in the afternoon. Difficulty shifting focus between near and far. Sensitivity to light. Dry, gritty, or watery eyes. Neck and shoulder pain accompanying eye discomfort.

Dry Eyes and Digital Eye Strain in Gurgaon

Many people in Gurgaon spend long hours on computers, phones, and other digital devices. Reduced blinking during screen use can contribute to dry eyes, eye strain, headaches, blurred vision, burning, watering, and difficulty focusing.

These symptoms may be further aggravated by factors common in Gurgaon, including air-conditioned office environments, long working hours, dry weather, air pollution, dust, and ongoing construction activity. Together, these factors can affect the stability of the tear film and make the eyes feel tired, irritated, or uncomfortable throughout the day.

A comprehensive eye examination can help determine whether symptoms are related to dry eye disease, digital eye strain, an uncorrected vision problem, or a combination of factors. Early assessment can often improve comfort, productivity, and visual quality.

Dr Shibal Bhartiya works with corporates, professionals, and frequent screen users in Gurgaon on the diagnosis and management of dry eye disease, digital eye strain, and healthy screen-use habits. To book an eye examination or arrange an eye health awareness session for your organisation, call +91 88826 38735 or visit drshibalbhartiya.com.

What actually helps

The 20-20-20 rule: Every 20 minutes, look at something 20 feet away for 20 seconds. This relaxes the ciliary muscle and allows the tear film to renew. Simple, evidence-based, consistently underused.

Conscious blinking: During screen use, blink deliberately and fully every few minutes. This is not automatic — you have to practise it. A complete blink fully renews the tear film; an incomplete blink (the “squint-blink” most people do on screens) does not.

Screen position: The top of the screen should be at or just below eye level. Looking slightly downward reduces the exposed ocular surface and slows tear evaporation.

Screen distance: 50–70 cm from the face. Closer than this increases the accommodative demand on the ciliary muscle.

Preservative-free lubricant drops: Used before screen sessions and during breaks — not after symptoms develop. Prevents rather than chases the problem.

Ambient lighting: The room should be as bright as the screen. Contrast between a bright screen and a dark room forces the pupil to work harder and accelerates fatigue.

Blue light glasses: Evidence for blue light as the primary cause of digital eye strain is weak. Glare reduction and proper screen positioning matter more. They do no harm — but do not substitute for the above.

When it is more than screen strain

See an eye specialist if: symptoms persist on rest days away from screens, if one eye hurts more than the other, if vision is blurry even after stopping screen use, or if you have headaches every morning before screens begin. These patterns suggest dry eye disease, refractive error, binocular vision dysfunction, or early glaucoma — none of which resolve with screen hygiene alone.

If screen-related eye pain is affecting your work or daily life, a full assessment takes under an hour. Dr Shibal Bhartiya — dry eye specialist and glaucoma specialist in Gurgaon — will identify whether this is screen strain or something that needs treatment. 📞 +91 88826 38735 | www.drshibalbhartiya.com

This article is part of the Dry Eye Hub. Please also read Basics of Dry Eye, Dry Eye Second Opinion and Dry Eye: A Chronic Disease. Why Vision Becomes Blurred After Reading or Screen Use, and Why Are Your Dry Eye Drops Not Working may also help you understand your problem better.

You may also want to read this article written by Dr Bhartiya for NDTV online. And listen to her talk about dry eyes here.

Frequently Asked Questions

Why do my eyes hurt after using a screen?

Eye discomfort after screen use is commonly caused by digital eye strain, dry eyes, reduced blinking, prolonged near work, or an uncorrected vision problem.

Can screen time cause dry eyes?

Yes. People blink less frequently while using computers, phones, and tablets. Reduced blinking can increase tear evaporation and contribute to dry eye symptoms.

What are the symptoms of digital eye strain?

Digital eye strain may cause eye pain, eye fatigue, headaches, burning, watering, blurred vision, dryness, difficulty focusing, and discomfort after prolonged screen use.

Why are dry eyes and digital eye strain common in Gurgaon?

Long screen hours, air-conditioned offices, dry weather, pollution, dust, and construction activity can contribute to dry eyes and digital eye strain among professionals in Gurgaon.

When should I see an eye specialist for eye pain after screen use?

You should seek an eye examination if symptoms are severe, persistent, associated with blurred vision, redness, headaches, light sensitivity, or do not improve with rest and screen breaks.

Can digital eye strain be treated?

Treatment depends on the cause and may include managing dry eyes, improving screen ergonomics, taking regular breaks, updating glasses prescriptions, and addressing underlying eye conditions.

About the Author

This article was written by Dr Shibal Bhartiya, fellowship-trained eye 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

Can Playing Wind Instruments Affect Glaucoma?

Some wind instruments can temporarily increase pressure inside the eye during performance. For musicians with glaucoma or glaucoma risk factors, understanding how instrument type, breathing technique, and eye health interact may help protect long-term vision.

Here is what Musicians Need to Know About Eye Pressure, Technique, and Long-Term Vision, says Dr Shibal Bhartiya.

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.

Dr. Shibal Bhartiya has published peer-reviewed research examining the relationship between glaucoma and musical instrument performance. The discussion in this article draws upon both published evidence and ongoing clinical interest in how lifestyle activities may influence intraocular pressure and optic nerve health.

Related publication: Eye-tunes: role of music in ophthalmology and vision sciences; Twenty four hour eye pressure monitoring

Music, Breathing, and Eye Health: An Overlooked Conversation

Most people think of glaucoma as a disease influenced by age, family history, eye pressure, and genetics. Few consider whether a lifelong hobby or profession could affect the eyes.

Yet musicians who play wind instruments generate substantial airflow and pressure during performance. Researchers have therefore explored whether playing certain instruments might temporarily increase intraocular pressure (IOP), the pressure inside the eye.

The answer is more nuanced than many headlines suggest.

While some wind instruments may be associated with transient rises in eye pressure by almost 10%, the effects vary depending on the instrument, the player, the technique used, and the individual’s underlying glaucoma risk.

Following publication, Professor Frank Gabriel Campos, Professor Emeritus of Trumpet at Ithaca College, provided valuable insights regarding brass performance technique and the distinction between efficient airflow support and Valsalva-like straining. This article has been written to reflect those nuances and to encourage a more technique-sensitive interpretation of the available evidence.

Why Eye Pressure Matters in Glaucoma

Glaucoma is a chronic optic nerve disease that often progresses silently. Elevated intraocular pressure is one of its most important risk factors.

What makes glaucoma challenging is that damage often develops gradually over years before noticeable symptoms appear.

Many patients continue to see well while subtle changes accumulate in peripheral vision, contrast sensitivity, dark adaptation, or visual processing.

This is why activities that may temporarily increase eye pressure have attracted scientific interest.

Do Wind Instruments Increase Eye Pressure?

Several studies have reported temporary increases in intraocular pressure while playing certain wind instruments.

Researchers believe this may occur because high-resistance instruments require forceful exhalation against resistance, generating pressure changes within the chest, neck, and head.

These physiological changes may influence:

Venous pressure
Blood flow dynamics
Intraocular pressure
Optic nerve perfusion

Importantly, temporary increases in eye pressure are not the same as glaucoma.

Most musicians who play wind instruments never develop glaucoma.

However, for individuals who already have glaucoma, ocular hypertension, suspicious optic nerves, or a strong family history, these findings may be clinically relevant.

Not All Instruments Are the Same

Different instruments create different airflow demands and resistance.

Instruments Often Associated with Higher Resistance

Instrument Type	Potential Eye Pressure Concern
Trumpet	Higher expiratory resistance
Oboe	Very high airflow resistance
French Horn	Sustained pressure generation
Bassoon	High resistance airflow
Certain Brass Instruments	Repeated pressure fluctuations

Instruments Generally Associated with Lower Resistance

Instrument Type	Relative Physiological Load
Flute	Lower resistance
Clarinet	Variable
Saxophone	Moderate
Recorder	Generally lower

The relationship remains complex and individual. In the Indian context, while there is little or no evidence, blowing the conch shell, and the flute may also have similar effects.

An Important Clarification About Technique

One of the most valuable insights on this topic comes not from ophthalmology, but from professional music performance.

After publication of an earlier version of this article, Professor Frank Gabriel Campos, Professor Emeritus of Trumpet at Ithaca College and author of Trumpet Technique (Oxford University Press), generously shared an important perspective.

Professor Campos notes that the Valsalva manoeuvre is generally considered poor or incorrect technique in high-level brass performance rather than a desired component of proper playing.

This distinction matters.

Some discussions of eye pressure and wind instruments assume that elevated pressure results from Valsalva-like straining. However, experienced musicians aim to support airflow efficiently without unnecessary glottic closure or excessive pressure generation.

In other words:

The physiological effects of wind instrument performance may depend not only on the instrument being played, but also on how it is played.

This highlights an important area for future research.

Understanding technique may prove just as important as understanding instrument type.

The author gratefully acknowledges Professor Frank Gabriel Campos for his thoughtful contribution to this discussion and for helping improve the accuracy and nuance of this article.

What Doctors May Miss

What Patients Think	What May Actually Be Happening
“My vision seems normal.”	Early glaucoma may cause no noticeable symptoms.
“Nobody asked about my hobbies.”	Certain activities may provide useful risk information.
“My eye pressure is normal in clinic.”	Eye pressure naturally fluctuates throughout the day.
“Playing music cannot affect my eyes.”	Some instruments may temporarily influence eye pressure.
“Only family history matters.”	Multiple risk factors interact in glaucoma development.
“If I see clearly, I must be safe.”	Functional compensation can hide early disease.

Should Musicians Stop Playing?

In most cases, no.

The purpose of understanding these findings is not to discourage music.

For many musicians, playing an instrument is a profession, passion, social connection, and lifelong source of joy.

Instead, the goal is awareness.

If you have:

Glaucoma
Ocular hypertension
A strong family history of glaucoma
Suspicious optic nerves
Progressive visual field loss

it may be worth discussing your musical activities with your eye specialist.

Monitoring can often be tailored without requiring major lifestyle changes.

Questions Worth Asking Your Eye Doctor

Does my current glaucoma appear stable?
How advanced is my disease?
Should my eye pressure be monitored more closely?
Are there activities that may affect my individual risk profile?
Do my optic nerve findings suggest increased vulnerability?
Would additional testing be useful?

This page is a part of the Glaucoma Hub. you may want to read about Glaucoma Progression, and Risk Stratification in Glaucoma.

Frequently Asked Questions

Can playing a trumpet cause glaucoma?

No. Playing a trumpet does not directly cause glaucoma. However, some studies suggest that certain wind instruments may temporarily increase eye pressure during performance.

Is it safe to play a wind instrument if I have glaucoma?

Many people with glaucoma continue playing wind instruments safely. Decisions should be individualized based on disease severity, eye pressure control, and overall risk profile.

Which instruments are most often studied?

Trumpet, oboe, bassoon, and French horn have received particular attention because of their higher airflow resistance.

Does technique matter?

Yes. Professional musicians emphasize that efficient breathing and airflow support differ from excessive straining. Technique may influence physiological responses during performance.

Can normal eye pressure readings miss risk?

Yes. Eye pressure varies throughout the day and may not always reflect pressure changes during specific activities.

Should musicians undergo glaucoma screening?

Anyone with glaucoma risk factors: including family history, elevated eye pressure, suspicious optic nerves, or age-related risk, should consider regular comprehensive eye examinations.

Can glaucoma affect musicians even if they read music normally?

Yes. Early glaucoma often affects peripheral vision first. Reading music may remain normal while subtle visual field changes develop elsewhere.

What symptoms should musicians watch for?

Glaucoma often causes no symptoms in its early stages. Regular examinations are more reliable than symptom monitoring alone.

Key Takeaway

Playing a wind instrument does not automatically mean you are at risk of glaucoma.

However, research suggests that certain instruments may temporarily increase eye pressure, particularly when substantial resistance is involved.

The relationship is complex. Instrument type, technique, breathing mechanics, eye anatomy, and individual susceptibility all matter.

For musicians with glaucoma or glaucoma risk factors, awareness—not alarm—is the right response.

The goal is not to stop making music.

The goal is to protect vision so that music can remain part of life for years to come.

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

Note: This article was written by Dr. Shibal Bhartiya, and was updated following correspondence with Professor Emeritus Frank Gabriel Campos regarding brass performance technique.