Why is glaucoma called the silent thief of sight and who needs a check-up?

By Abhay Kumar, founder of ORINvue · 2026-10-17

Why is glaucoma called the silent thief of sight and who needs a check-up?

Glaucoma is called the silent thief of sight because the most common type causes no pain and no early symptoms while it slowly damages the optic nerve, starting with side vision. By the time you notice, a lot of sight may be gone and cannot be brought back. A regular dilated eye exam by an ophthalmologist is the only reliable way to catch it early.

What glaucoma is

The optic nerve carries images from the eye to the brain. In glaucoma it is damaged, often (but not always) because pressure inside the eye is too high for that nerve. Vision loss is permanent, but treatment can slow or stop further loss if started early.

Why it is silent

In open-angle glaucoma, the commonest form, side (peripheral) vision shrinks very slowly. The brain fills the gaps, and central vision stays sharp until late. Many people never realise until a test shows it.

Who is at higher risk

  • Age over 40, risk rising with age
  • Family history of glaucoma
  • Diabetes and high blood pressure
  • High myopia (very high minus number)
  • Long-term steroid use, including drops, creams or tablets
  • Past eye injury
  • Thin cornea or high eye pressure found on tests

Warning signs that need urgent care

Angle-closure glaucoma can be sudden: severe eye pain, red eye, headache, nausea, haloes around lights and sudden blur. This is an emergency. Go to an eye hospital immediately.

What the check-up includes

  1. Eye pressure measurement
  2. Examination of the optic nerve
  3. Visual field test
  4. Scan of nerve layers (OCT) and corneal thickness where needed
  5. A look at the drainage angle

One pressure check alone is not enough, because some people get glaucoma with normal pressure.

Treatment

Treatment, which only an ophthalmologist can prescribe, may include daily eye drops, laser or surgery. The goal is to protect the remaining vision. It is very important to use drops regularly and keep follow-ups.

Small steps that help

  • Test your eyes yearly after 40, earlier with a family history
  • Tell your siblings and children if you have glaucoma
  • Never use steroid drops without advice
  • Stay active and control sugar and blood pressure

Frequently asked questions

Can glaucoma be cured?

It cannot be cured and lost vision cannot be restored, but treatment can slow it.

Can glasses detect glaucoma?

No. Glasses fix focus. A glaucoma check needs pressure, nerve and field tests.

Is glaucoma always high pressure?

No. Normal-tension glaucoma exists.

Can young people have it?

Yes, though it is less common. Risk rises with high myopia and family history.

Does eye exercise help?

No exercise replaces medical treatment.

How ORINvue can help

Every eye test at ORINvue is done by our qualified optometrist, Khushboo Gangwar: a complete vision and eye-health check in 10-15 minutes. If your eyes need medical treatment or surgery, she guides you to a trusted eye specialist.

Read our guide: https://orinvue.netlify.app/eye-health/glaucoma.html .

Information only, not medical advice.

About ORINvue

ORINvue is an optical store opening in December 2026 in Lucknow's Kalyanpur / Vikas Nagar area, open daily 10 AM to 10 PM. It was founded by Abhay Kumar to give Lucknow families honest eye tests and fixed, all-inclusive glasses packages. Visit https://orinvue.netlify.app for details.

Read this on the ORINvue website (with video and reader Q&A): https://orinvue.netlify.app/blog/glaucoma-silent-vision-loss-checkup.html

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