Glaucoma — The “Silent Thief of Sight,” and Why Screening Matters
Glaucoma has earned its nickname — the “silent thief of sight” — for a genuinely alarming reason: it typically causes no pain, no obvious symptoms, and gradual peripheral vision loss so slow that most patients don’t notice until significant damage has already occurred.
What’s actually happening
Glaucoma involves progressive damage to the optic nerve, often (but not always) linked to elevated pressure inside the eye. Left undetected, it causes permanent, irreversible vision loss — vision already lost to glaucoma cannot be restored, which is precisely why early detection is the entire game.
Who’s at higher risk
- Age over 40
- Family history of glaucoma
- Diabetes or high blood pressure
- Prior eye injury
- High spectacle power (both myopia and hyperopia)
Why routine screening matters more than waiting for symptoms
By the time someone notices vision changes from glaucoma themselves, a meaningful portion of the optic nerve may already be damaged. A comprehensive eye exam — checking eye pressure and optic nerve health — can catch it years before any symptom would appear.
Our recommendation: anyone over 40, or with any risk factor above, should have a glaucoma screening at least once a year — even with no symptoms and even with otherwise good vision.
The best time to catch glaucoma is before you’d ever notice anything wrong yourself. Book a glaucoma screening today.
Frequently Asked Questions
What is glaucoma?
Glaucoma is damage to the optic nerve, often (though not always) linked to raised pressure inside the eye. Over time it can gradually affect vision, starting with peripheral (side) vision.
Why is glaucoma called the “silent thief of sight”?
Because early glaucoma usually has no symptoms. Vision loss often begins at the edges of your visual field and can go unnoticed until significant, sometimes irreversible, damage has already occurred.
Can glaucoma be cured?
No, but it can usually be controlled with treatment — eye drops, laser, or surgery — to prevent further vision loss. Vision already lost to glaucoma generally cannot be restored, which is why early detection is so important.
Who is at higher risk of glaucoma?
Risk increases with age, a family history of glaucoma, high eye pressure, and certain other health conditions.
How is glaucoma diagnosed?
Through a combination of eye pressure measurement, examination of the optic nerve, and imaging or visual field tests such as OCT.
How often should I get screened for glaucoma?
Periodic screening is generally recommended after age 40, or earlier and more frequently if you have risk factors. Your doctor can advise the right interval for you.