Glaucoma: The Silent Sight Thief & Early Signs All Indians Must Know

Most of us don’t think twice about our vision until it starts to go. Most eye conditions show up with symptoms. Glaucoma does not.  It grows slowly, often with no pain or obvious signs, and can cause slow damage to your vision before you even know there is a problem. The glaucoma symptoms in India are often missed until the disease has already resulted in permanent loss of vision. It is important to be aware of your eyesight early on and have regular eye exams. 

This is why glaucoma is also called “the silent thief of sight”.

Glaucoma is a disease that affects millions of people worldwide with one of the largest populations of affected people in India. But the condition progresses slowly and eye tests are often missed, so many people go undiagnosed.

The good news is that early detection can prevent additional vision loss. Well, there isn’t any complete cure available to treat glaucoma, but with early detection it’s possible to slow down progression of the disease. It will help you to preserve your eyesight for years to come. 

Thus, we have prepared a well-researched guide for you where you will find everything about glaucoma, its early warning signs, glaucoma symptoms in India, who are at the rsk of getting glaucoma, and treatment options available. We’ll also talk about why you should book eye tests at home, and how it’s one of the best things you can do to protect your sight.

What is Glaucoma? 

Glaucoma is an eye disease that damages the nerve of the eye. The optic nerve is the chief route that transports visual info from the eyes to the brain. Because this nerve is damaged, your vision is being invaded by blind spots.

Many cases of glaucoma are associated with an increase in intraocular pressure (IOP) within the eye. But you need to realise that glaucoma can also occur with normal eye pressure. If undiagnosed and untreated in time, glaucoma can eventually lead to irreversible blindness. 

What are Glaucoma Symptoms in India & Why is it called the “Silent Thief of Sight”?

Redness, pain or blurred vision are associated with infections or injuries but are not common in early glaucoma. Instead, it slowly eats away at your peripheral (side) vision. The brain compensates for these changes and many people do not notice anything unusual until a lot of vision has been lost.

Glaucoma and Glaucoma symptoms in India are dangerous because they progress silently. 

How Common is Glaucoma in India?

Glaucoma is one of the leading causes of irreversible blindness worldwide and there is a huge burden of the disease in India. Some important facts are:

• It is estimated that over 12 million people in India are affected by glaucoma.
• Because the disease develops without visible symptoms during the initial phase, almost fifty percent of all cases of glaucoma go undiagnosed.
• Glaucoma can occur in younger adults and sometimes even children, but it is more common in people over the age of 40. 

The above highlighted stats suggest that there is always a need for a regular eye checkup even if your vision is seeming normal. 

Know Different Types of Glaucoma

Understanding the different types of glaucoma may help you to understand why regular eye exams are so important.

1. Primary Open-Angle Glaucoma

This is the most common type of glaucoma. The drainage system of the eye also stops working well and the pressure in the eye rises with time. It is a slow-progressing disease and often asymptomatic in the early phase. Most people with open-angle glaucoma are diagnosed during a comprehensive eye examination.

2.  Angle-Closure Glaucoma

Angle-closure glaucoma is a medical emergency and can occur suddenly, unlike open-angle glaucoma. Symptoms can include:

• Severe eye pain
• Loss of vision, sudden
• Headache
• Nausea, vomiting
• Light Halo
• Red-Eyes

If you experience these symptoms, you should immediately see a doctor for permanent vision loss.

3. Normal Tension Glaucoma

Some people develop damage to the optic nerve even though their eye pressure is normal. This condition indicates that simply measuring the pressure in an eye is not sufficient to detect glaucoma early on. Comprehensive eye examinations needed.

Be Aware of Early Glaucoma Symptoms in India 

Glaucoma is a major problem because it may not show any warning signs at all in its early stages. But as the disease develops some people may see:

• Slow loss of peripheral (side) vision
• Trouble seeing at night
• Getting into the things often
• Trouble seeing at night or in dim light
• Increased glare sensitivity
• Subsequent Stages of Tunnel Vision

Because the symptoms develop slowly, many people assume they are a normal part of aging, not a sign of an eye disease. But regular eye exams are still the best way to detect glaucoma before it causes permanent damage.

When You Know Glaucoma Symptoms in India, Now Let’s Find Who is at Most Risk? 

Glaucoma can happen to anyone, but your risk may be greater if you:

• Are over 40
• Family history of glaucoma
• Do you suffer from diabetes or high blood pressure?
• Intraocular pressure increased
• Long term use of steroid drugs
• Had an eye injury
• Have extreme nearsightedness or farsightedness
• Thinner cornea.

If you belong to any of these groups, you need regular comprehensive eye exams more than ever. 

How is Glaucoma Diagnosed?

We would like to inform you that glaucoma symptoms in India and all other parts of the country aren’t obvious and that’s why it’s called the silent thief. Thus, if you want to detect glaucoma at an early stage, then you must visit an eye clinic or book professionals like EyeSetu to book eye test at home service. These professionals will help you with complete eye exams at the comfort of your home. Below is a list of eye test procedures that will help you detect glaucoma symptoms in India at an early stage. 

1. Check eye pressure (Tonometer)

This test measures the pressure in your eye. High eye pressure can put you at risk for Glaucoma. But some people get glaucoma without increased eye pressure.

2. Evaluation of optic nerve

The doctor looks for damage to the optic nerve.  Today’s imaging techniques can detect subtle changes before vision is lost.

3. Retinal Imaging Devices

Advanced retinal imaging to monitor changes in the optic nerve and retina over time.

Is There a Cure for Glaucoma?

Yes – glaucoma is treatable but once vision is lost it cannot be regained. The goal of treatment is to stop further damage and to keep what vision remains. Common treatment options include:

• Eye drops: These are typically the first treatment. They work by either decreasing the amount of fluid produced or increasing the drainage .
• Laser Treatment: Laser procedures can improve drainage in the eye and help control pressure.
• Surgical treatment: Sometimes surgery is advised to make a new drainage channel for the eye fluid.
• Regular Monitoring: Glaucoma is a chronic disease with life-long follow up. Even if treatment is working, regular eye exams are important. You can also book eye test at home for your complete eye checkup and detect glaucoma symptoms early. 

Can Glaucoma Be Prevented?

There’s no sure way to stop glaucoma, but you can do a lot to reduce your risk of severe vision loss by:

• Have your eyes checked regularly after age 40.
• Treatments for diabetes and hypertension.
• Only taken when a doctor prescribes steroid medicines.
• Protecting your eyes from injury.

If you are diagnosed with glaucoma, follow your doctor’s treatment plan.

Book Eye Test at Home or In a Clinic: Why You Need

A lot of people think, if you have blurry vision, you just need an eye exam. Unfortunately glaucoma is often symptomless until significant damage has been done. Comprehensive eye exams can catch glaucoma years before vision problems occur. If you: If you have: Early detection is very important if you:

• Are over 40 years of age.
• Family history of glaucoma.
• Be a diabetic or a hypertensive.
• Wear heavy prescription glasses.
• No full eye test ever.

Why Book Eye Test at Home Services by EyeSetu to Detect Glaucoma Early?

At EyeSetu, we believe that early detection should be easy and available. If you choose to book eye test at home services, you will see that we use the most advanced diagnostic technology and are backed up by expert medical review to identify potential eye issues early. Referral for appropriate specialist evaluation may be made for those at potential risk for glaucoma before irreversible vision loss.

Dr. Shikha Gupta, Director, EyeSetu, says, “Glaucoma often develops without noticeable symptoms, which is why regular screening is so important—especially for people over 40 or those with a family history of the disease. Early detection and timely intervention can make a significant difference in protecting vision.” 

Early detection saves life.

FREQUENTLY ASKED QUESTIONS (FAQS)

1. How do I know if I have glaucoma?

Early symptoms are not apparent in most cases. The first sign is usually a slow loss of peripheral vision.

2. Can glaucoma make you blind?

Yeah.  If left untreated Glaucoma will cause irreversible loss of vision and eventual blindness.

3. Is glaucoma painful?

The most common is primary open-angle glaucoma, which is usually painless. Angle-closure glaucoma is very painful and should be treated as an emergency.

4. How often should I get my eyes tested for glaucoma?

Most adults should begin regular eye exams at age 40. At-risk people may need to be screened earlier.

5. Can Glaucoma Be Cured?

There are several advanced treatments available for glaucoma that can effectively control the condition and help protect vision when diagnosed early. Treatment options depend on the type and stage of glaucoma and may include eye drops, laser procedures, or surgery to lower intraocular pressure (IOP). 

6. What Is Minimally Invasive Glaucoma Surgery (MIGS)?

Minimally Invasive Glaucoma Surgery (MIGS) is an advanced surgical approach designed to reduce eye pressure with smaller incisions and faster recovery than traditional glaucoma surgery. Procedures may include implants such as the iStent and Hydrus Implant, as well as techniques like KDB (Kahook Dual Blade) and GATT (Gonioscopy-Assisted Transluminal Trabeculotomy). Your ophthalmologist will recommend the most suitable procedure based on your condition.

7. Will I Need Regular Follow-ups After Glaucoma Treatment?

Yes. Glaucoma requires lifelong monitoring, even after successful treatment or surgery. Regular follow-up appointments allow your eye specialist to monitor intraocular pressure (IOP), evaluate the optic nerve, and adjust treatment if needed. Consistent follow-up plays a vital role in preserving vision over the long term.

Some Key Takeaway 

• Often called the “silent thief of sight,” the glaucoma symptoms in India are usually not visible.
• Glaucoma affects an estimated 12 million people in India.
• The best way to prevent irreversible loss of vision is to diagnose it early.
• Those over 40, diabetics and those with a family history are at risk of getting it.
• Even if you feel your vision is okay, it is important to have regular comprehensive eye exams. 

Medically Reviewed By

Dr. Shikha
Consultant Ophthalmologist
Dr. Shikha Gupta is the Co-founder & CEO of EyeSetu and an ophthalmologist with over 15 years of experience in clinical practice and telemedicine. An AIIMS alumna (MBBS, MD Ophthalmology, Gold Medalist), she is a former Senior Consultant at AIIMS, recipient of the American Glaucoma Society Humanitarian Award, and recognized among the Top 2% Stanford Researchers (2025). She is dedicated to making quality eye care accessible to everyone. 

Medical Disclaimer

This article is intended for educational purposes only and should not be considered a substitute for professional medical advice, diagnosis, or treatment. If you notice any changes in your vision or have concerns about your eye health, consult a qualified ophthalmologist.