Glaucoma: The "Silent Thief of Sight" Explained

Why they call it the silent thief

Glaucoma damages the optic nerve slowly, starting with peripheral (side) vision you never notice missing, because your brain fills in the gaps. There's no pain and no early warning. By the time most people notice a problem without an exam, significant permanent vision has already been lost.

Who's at risk

• Age over 60, risk rises steadily with age.
• Family history, a parent or sibling with glaucoma multiplies your risk.
• African, Hispanic, and Asian heritage, higher risk, and often earlier onset.
• High eye pressure, the biggest treatable risk factor.
• Other factors, diabetes, high blood pressure, severe nearsightedness, and long-term steroid use.

How we screen for it

A comprehensive exam checks your eye pressure, examines the optic nerve directly, and may include imaging that measures the nerve fiber layer and a visual field test that maps your peripheral vision. No single test tells the whole story so we look at the pattern over time, which is why regular exams matter more than any one visit. We use special machine known as an OCT imaging to measure different areas in the eye giving your doctor the bigger picture. We don't like to take guesses with our patients eye health. 

The part patients find hopeful

While vision lost to glaucoma can't be restored, treatment is very good at protecting what remains. For most patients, daily prescription eye drops that lower eye pressure are enough to stop or dramatically slow progression. Laser procedures and surgery exist for cases that need more. The key is catching it early, which only happens at an exam, since you can't feel it coming.

When to see an optometrist

If you're over 40, have a family history, or simply haven't had a comprehensive exam in a couple of years, glaucoma screening is reason enough on its own. It takes minutes, and it's part of every comprehensive exam we do.