What Is the Leading Cause of Glaucoma?

Glaucoma is one of the leading causes of irreversible blindness in the world, yet many people remain unaware they have it until significant vision loss has occurred. Often called the “silent thief of sight,” glaucoma progresses gradually and without noticeable symptoms in its early stages. But what exactly causes it, and how can you protect your vision?
 

What is Glaucoma?

Glaucoma is not just one eye disease, it’s a group of eye conditions that damage the optic nerve, which is essential for good vision. This damage is often, but not always, caused by abnormally high pressure in the eye (intraocular pressure or IOP). If left untreated, the damage to the optic nerve can lead to permanent vision loss or blindness.
 

Understanding the Leading Cause

The primary and most common cause of glaucoma is elevated intraocular pressure. This pressure builds up when fluid in the eye (called aqueous humor) doesn’t drain properly. Normally, this fluid flows out of the eye through a mesh-like channel, but when the channel becomes blocked or restricted, pressure increases - putting strain on the optic nerve.
 

It’s important to note that not everyone with high eye pressure will develop glaucoma, and some people can develop glaucoma even with normal eye pressure. This is why regular eye exams and pressure checks are so critical.
 

Risk Factors You Should Know

While elevated eye pressure is the main cause, other factors can increase your risk of developing glaucoma, including:
 

• Family history of glaucoma

• Age (more common over 60)

• Being African American, Hispanic, or Asian

• Medical conditions like diabetes or high blood pressure

• Prolonged use of corticosteroid medications

• Eye injuries or surgeries

Why Routine Eye Exams Matter

Because glaucoma can cause vision loss before you notice any symptoms, early detection is your best defense. Comprehensive eye exams include tests that measure your eye pressure, assess your optic nerve, and evaluate your peripheral vision - all essential for detecting glaucoma early. We use advanced diagnostic tools to catch the earliest signs of glaucoma, even before symptoms appear. By catching it early, we can often manage the condition with eye drops, laser treatments, or surgery to slow or prevent further damage.
 

Schedule Your Glaucoma Screening Today

The leading cause of glaucoma is elevated intraocular pressure, but the risk is influenced by a variety of factors. Since glaucoma often progresses without warning, routine eye exams are essential for protecting your vision.
 

Schedule your eye exam with Eyecare Center of Leesburg to stay ahead of glaucoma. Visit our office in Leesburg, Florida, or call (352) 787-1956 to book an appointment today.