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Do You Recognize the Early Warning Signs of Glaucoma?

Sarah Stevenson
By Sarah StevensonJanuary 5, 2017

Nearly three million people in the U.S. are estimated to have glaucoma, but only half of those are aware they have the disease. It can’t be cured — but it can be treated if it’s detected early enough.

Learn more about the early warning signs of glaucoma.

Signs of Glaucoma

January is Glaucoma Awareness Month and the perfect time to create awareness for the disease, considering early-stage glaucoma has few, if any, symptoms.


Over 120,000 in the U.S. are blind from glaucoma — between 9-12% of all blindness cases, reports the Glaucoma Research Foundation, and there is currently no known cure. Seniors are at high risk for glaucoma, which is why it’s of critical importance to get regular eye examinations from an optometrist, particularly if you or your loved ones show any early warning signs or are in a high risk group.

Glaucoma is a group of diseases that affect the optic nerve and lead to permanent vision loss. Different types of glaucoma present alternate warning signs — and sometimes there are no symptoms, particularly in open-angle glaucoma, the most common form of the disease.

However, if you experience any of the following symptoms, you should seek immediate help:

1. Loss of peripheral or side vision.

This is usually the first sign of vision loss due to glaucoma.

2. Seeing halos around lights.

If you see rainbow-colored circles around lights or are unusually sensitive to light, it could be a sign of glaucoma.

3. Vision loss.

Especially if it happens suddenly.

4. Redness in the eye.

Sometimes accompanied by pain, which may be a sign of injury, infection, or acute glaucoma.

5. Eye that looks hazy.

A cloudy-looking cornea is the most common early sign of childhood glaucoma.

6. Nausea or vomiting.

Especially when it accompanies severe eye pain.

7. Pain in the eye and in the head.

This often occurs in angle-closure glaucoma, a type of glaucoma which can develop quickly.

8. Narrowing of vision (tunnel vision).

You may start to lose vision around the edges of your visual field.

Who is at Risk for Glaucoma?

One of the keys to glaucoma prevention is knowing whether you or your loved ones are at increased risk. Those with a higher risk should get a complete eye exam every one to two years, recommends the Glaucoma Research Group.

You may be at risk for glaucoma if you:

  1. Are of African-American, Asian, Hispanic, Inuit, Irish, Russian or Scandinavian descent.
  2. Are over age 40, and particularly if you are over age 60.
  3. Have diabetes.
  4. Have a family history of glaucoma.
  5. Have hypertension or extremely low blood pressure.
  6. Have had an eye injury in the past.
  7. Have poor vision, particularly if you have extreme nearsightedness or a very thin cornea.
  8. Take certain steroid medications, such as prednisone.

For more information on the risk factors for glaucoma, visit the Glaucoma Research Foundation website or the Glaucoma Foundation‘s website.

Though most types of glaucoma cannot be prevented, early detection and ongoing monitoring of eye health can limit the vision loss caused by the disease.

Stay aware of the risks and symptoms, and “keep an eye” on your visual health.

Did you or a loved one have any early warning signs of glaucoma? Share your story with us in the comments below.

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Sarah Stevenson
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Sarah Stevenson
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