Glaucoma Explained Early Signs Causes and Long Term Risks

Glaucoma is a serious eye disease.
It slowly damages the optic nerve which connects the eye to the brain and causes irreversible loss of vision. 
Most people do not feel pain or any other visual symptoms until very late in the disease. ​
Because of this, glaucoma is often called the silent thief of sight.
Early detection and treatment are very important to protect vision.

What Is Glaucoma
Glaucoma happens when pressure inside the eye becomes too high.
This pressure damages the optic nerve over time.
Once vision is lost it usually cannot be restored.
Glaucoma can affect one eye or both eyes.

Causes of Glaucoma
Glaucoma can develop for different reasons.
The main cause is obstruction to the outflow pathway at various levels so fluid inside the eye does not drain properly.

Age
Risk increases as people grow older.

Family history
Glaucoma can run in families.

Eye injuries
Past eye injuries can increase risk.

Eye diseases
Some eye problems like inflammation can affect eye pressure.

Long term use of certain medicines
especially steroid based medicines.

Early Signs of Glaucoma
Early signs are often mild or unnoticed depending on the type of glaucoma. 
Blurred vision
Difficulty seeing at night
Seeing halos around lights
Mild eye pain or headache
Slow loss of side vision
Because symptoms appear slowly most people do not realize they have glaucoma. 

Types of Glaucoma
There are different types of glaucoma.
Open angle glaucoma
This is the most common type is painless and develops slowly.
Angle closure glaucoma
This can happen suddenly and needs urgent care.
Congenital glaucoma
This is present at birth and affects babies.

How Glaucoma Is Diagnosed
Eye doctors use simple tests to diagnose glaucoma.
Checking eye pressure
Examining the optic nerve
Testing the field of vision
Measuring the thickness of the cornea
Imaging the thickness of the retinal nerve fibre layer making up the optic nerve. 

Regular eye exams help detect glaucoma early.

Long Term Risks of Glaucoma
If not treated, glaucoma can cause serious problems.
Permanent vision loss
Loss of side vision
Difficulty with daily activities
Complete blindness in severe cases
Vision loss from glaucoma cannot be reversed.
Treatment Options for GlaucomaGlaucoma treatment helps slow or stop damage.

Eye drops
These help lower eye pressure.

Oral medicines
Used in some cases to control pressure.

Laser treatment
Helps improve fluid drainage.

Surgery
Used when other treatments do not work.
Treatment is usually lifelong.

Can Glaucoma Be Prevented
Glaucoma cannot always be prevented.
But early detection helps protect vision.
Get regular eye checkups
Follow treatment plans carefully
Do not skip eye medicines
Inform doctors about family history

When to See an Eye Doctor Immediately
Seek medical help if you notice
Sudden vision loss
Severe eye pain
Red eyes with headache
Nausea with eye discomfort
These may be signs of angle closure glaucoma.

Frequently Asked Questions

Is glaucoma curable
Glaucoma cannot be cured but it can be controlled.

Can young people get glaucoma
Yes but it is more common in older adults.

Does glaucoma always cause blindness
No early treatment helps protect vision.

Summary
Glaucoma is a serious eye disease that damages vision slowly.
Early signs are easy to miss.
Regular eye exams and early care help reduce long term risks and protect eyesight.