• Published on: May 04, 2022
  • 3 minute read
  • By: Second Medic Expert

Glaucoma Causes, Symptoms, Diagnosis & Treatment

  • WhatsApp share link icon
  • copy & share link icon
  • twitter share link icon
  • facebook share link icon

Glaucoma is a group of diseases that damage the eye's optic nerve. The optic nerve carries information from the eye to the brain. Glaucoma can cause vision loss and blindness. It is one of the leading causes of blindness in the world. There are no early warning signs of glaucoma. It may take years for vision loss to occur. The only way to prevent blindness from glaucoma is to get regular eye exams and treat it early.

Glaucoma is diagnosed with a comprehensive eye exam that includes a test for your visual field, which measures your side vision. Treatment for glaucoma depends on the type and severity of disease. Glaucoma is a condition that causes damage to the optic nerve. This damage results in a gradual loss of vision, typically leading to blindness. While the cause of glaucoma is not completely understood, it is known that the pressure within the eye (intraocular pressure) plays a role in its development.

High intraocular pressure damages the optic nerve by causing fluid to build up and pushing against the optic nerve fibers. The high pressure can also damage the tiny blood vessels at the back of the eye (retina), which can lead to vision loss. Glaucoma can be diagnosed through a comprehensive dilated eye exam, which includes an evaluation of your visual field and measurement of your intraocular pressure. Glaucoma is a group of eye diseases that damage the optic nerve. It can lead to blindness. The most common type is primary open-angle glaucoma. Angle closure glaucoma, in which the angle between the iris and cornea closes up, is another type. Most people with glaucoma have no early symptoms. If you do have symptoms, they may include blurred vision, halos around lights, eye pain or redness, headaches, and nausea. Often by the time these symptoms develop it is too late for treatment to save vision.

Glaucoma  can cause permanent vision loss and blindness. Glaucoma often has no early warning signs, so it's important to get regular eye exams. The main types of glaucoma are open-angle glaucoma and angle-closure glaucoma. Open-angle glaucoma is the most common type of glaucoma. It develops slowly over many years and usually has no symptoms in the early stages. Angle-closure glaucoma is a less common type of glaucoma that can cause a sudden increase in eye pressure.

Glaucoma is a group of eye diseases that can lead to vision loss and blindness. It is caused by damage to the optic nerve. The optic nerve is a bundle of nerve fibers that connects the eye to the brain. The most common type of glaucoma is open-angle glaucoma, which is not caused by an injury or an infection. Open-angle glaucoma develops slowly over time. The other main type of glaucoma is angle-closure glaucoma, which can develop quickly and cause a sudden increase in pressure inside the eye. This pressure can damage the optic nerve and lead to vision loss and blindness

Glaucoma is a group of diseases that damage the eye’s optic nerve. The optic nerve carries visual images from the eye to the brain. Most people with glaucoma don’t know they have it because there are usually no symptoms in the early stages. Vision loss can occur gradually and may not be noticed until significant damage has occurred. There are several types of glaucoma, but the most common type is open-angle glaucoma. Treatment for glaucoma depends on the type and severity of the disease. Options include eyedrops, laser therapy, or surgery.

Glaucoma is caused by damage to the optic nerve, which transmits images from the eye to the brain. Most people with glaucoma don't notice any early symptoms. That's why it's important for people at risk for glaucoma—such as those with a family history of the disease or African Americans over age 40—to get regular eye exams. The only way to prevent vision loss from glaucoma is to diagnose it early and start treatment immediately. Treatment may include prescription eye drops or surgery.

Glaucoma is the second leading cause of blindness in the world. It is a silent thief because often there are no symptoms until significant vision damage has occurred. Most people with glaucoma don't know they have it until they have lost some vision. Vision loss from glaucoma can be gradual or sudden, but it almost always occurs over time. Early in the disease, you may not notice any changes at all in your vision.

Glaucoma can cause vision loss and blindness. The damage is usually due to an increase in pressure in the eye, which is called intraocular pressure (IOP). Most people with glaucoma don't have any symptoms until significant damage has occurred. Symptoms may include a gradual loss of peripheral vision, difficulty seeing at night, a change in pupil size or color, and red eyes.

If you have any of these symptoms, see an ophthalmologist as soon as possible for diagnosis and treatment. Untreated glaucoma can lead to permanent vision loss within a few years.

Glaucoma is a condition in which the optic nerve is damaged, leading to vision loss. It's often caused by an increase in pressure within the eye, called intraocular pressure (IOP). Some common symptoms of glaucoma include: a feeling of pressure in the eyes, blurred vision, and seeing halos around lights. Glaucoma can be diagnosed with a comprehensive eye exam that includes measuring IOP and checking for signs of optic nerve damage. Treatment for glaucoma depends on the severity of the condition and may include medication to reduce IOP, laser treatment, or surgery. Early diagnosis and treatment are essential to preserving vision.

Read Blog
Air pollution

Impact of Air Pollution on Human Health: Risks, Effects and Prevention

Air pollution has become one of the most serious public health challenges worldwide. In India, rapid urbanisation, vehicle emissions, industrial activity and seasonal factors contribute to high pollution levels, especially in metropolitan cities. Understanding the impact of air pollution on human health is essential because exposure to polluted air significantly increases the risk of chronic illness and premature death.

According to the World Health Organization, air pollution is responsible for millions of premature deaths globally each year. Studies published in The Lancet highlight India as one of the countries most affected by air quality-related health burdens.

 

What Is Air Pollution?

Air pollution occurs when harmful substances such as:

  • particulate matter (PM2.5 and PM10)

  • nitrogen dioxide

  • sulfur dioxide

  • ozone

  • carbon monoxide

accumulate in the atmosphere at unsafe levels.

Among these, PM2.5 particles are particularly dangerous because they are small enough to penetrate deep into the lungs and bloodstream.

 

Respiratory Health Effects

The most immediate and visible impact of air pollution is on the lungs.

Short-Term Effects

  • coughing

  • throat irritation

  • wheezing

  • shortness of breath

Long-Term Effects

  • chronic bronchitis

  • asthma worsening

  • reduced lung capacity

  • chronic obstructive pulmonary disease (COPD)

Children and elderly individuals are especially vulnerable.

 

Impact on Heart Health

Air pollution does not only affect the lungs. Fine particles enter the bloodstream and trigger inflammation.

Long-term exposure increases risk of:

  • hypertension

  • heart attack

  • stroke

  • atherosclerosis

ICMR reports show cardiovascular diseases remain a leading cause of mortality in India, with pollution being a significant contributing factor.

 

Impact on Immune System

Constant exposure to polluted air weakens the immune response.

This leads to:

  • frequent respiratory infections

  • slower recovery from illness

  • increased susceptibility to viral diseases

Pollution also increases systemic inflammation.

 

Effect on Children’s Health

Children are particularly vulnerable because:

  • their lungs are still developing

  • they breathe more air relative to body weight

  • they spend time outdoors

Long-term exposure may reduce lung growth and increase asthma risk.

 

Impact on Pregnant Women and Infants

Research published in Lancet indicates that high pollution exposure during pregnancy increases risk of:

  • low birth weight

  • premature birth

  • developmental complications

Protecting pregnant women from pollution exposure is critical.

 

Air Pollution and Cancer Risk

Prolonged exposure to air pollution increases the risk of lung cancer.

WHO classifies outdoor air pollution as a carcinogen.

 

Mental Health and Cognitive Impact

Emerging research suggests pollution may contribute to:

  • cognitive decline

  • mood disorders

  • reduced concentration

Clean air supports brain health.

 

Seasonal Pollution in India

During winter months, many cities experience severe smog due to:

  • crop burning

  • temperature inversion

  • increased emissions

Monitoring Air Quality Index (AQI) helps individuals take precautions.

 

Signs of Pollution-Related Health Impact

  • persistent cough

  • chest tightness

  • eye irritation

  • unusual fatigue

  • worsening asthma

Individuals experiencing these symptoms should consult healthcare providers.

 

Preventive Measures to Reduce Exposure

Monitor AQI

Avoid outdoor activities during high pollution days.

 

Use Protective Masks

N95 masks filter fine particles effectively.

 

Indoor Air Quality

Use air purifiers and keep windows closed during peak pollution.

 

Avoid High-Traffic Areas

Limit time near busy roads.

 

Maintain Healthy Lifestyle

Strong immunity helps reduce pollution-related health risks.

 

Role of Preventive Healthcare

Regular screening for:

  • lung function

  • blood pressure

  • heart health

helps detect early damage caused by pollution.

Urban populations should prioritise routine health checkups.

 

Long-Term Public Health Impact

Air pollution contributes significantly to:

  • healthcare burden

  • productivity loss

  • economic strain

Preventive awareness and environmental policies are essential.

 

Conclusion

The impact of air pollution on human health is profound and far-reaching. From respiratory disorders and heart disease to immune suppression and increased cancer risk, polluted air affects nearly every organ system. In India’s urban environment, proactive measures such as monitoring AQI, using protective masks and maintaining regular health screenings are crucial. Protecting oneself from air pollution is not just about comfort—it is a vital step in preserving long-term health and preventing chronic disease.

 

References

  • World Health Organization (WHO) – Air Pollution and Health Reports
  • Indian Council of Medical Research (ICMR) – Environmental Health Studies
  • National Family Health Survey (NFHS-5) – Respiratory and Cardiovascular Data
  • NITI Aayog – Environmental and Preventive Health Strategy Reports
  • Lancet – Global Burden of Disease and Air Pollution Research

See all

Live Doctor consultation
Live Doctor Chat

Download Our App & Get Consultation from anywhere.

App Download
call icon for mobile number calling and whatsapp at secondmedic