Understand What Glaucoma Is and How To Prevent It

Edited by Debbie, Charmed, Eng, Anonymous

For just a moment, keep your eyes focused on the last word of this sentence. Without trying to move your eyes, could you see some of the area below, above,and on either side of this page? You probably could, thanks to peripheral vision. This gives you the capability to sidestep objects on the ground and avoid bumping into walls when you walk. If you are driving a car, it can alert you of a person who has stepped off the curb. But even as you read this page your peripheral vision could slowly be dying without you even realizing it. In the world approximately 66 million people are affected by a group of eye diseases known as glaucoma. Of that number, over 5 million have become completely blind making it the third largest cause of losing eyesight. Who is at risk of developing glaucoma? How is it identified, and treated?

Was this helpful? Yes | No | I need help

Glaucoma.jpg

The eye's inelasticity is obtained through pressure. The soft tissues of the eye are inflated up, just like a balloon. This pump, called the ciliary body transfers a fluid called aqueous humor from the blood vessels into the eye. The aqueous flows deep inside the eye, giving nourishment to living structures and returns to the bloodstream through a filter-like formation called the trabecular meshwork.

Was this helpful? Yes | No | I need help

If this meshwork becomes blocked for any reason, the pressure inside the eye will rise, and begin to damage the fragile nerve fibers at the back of the eye. This disorder is called open-angle glaucoma and accounts for about 90 percent of all cases.

Was this helpful? Yes | No | I need help

The pressure inside the eye known as intraocular pressure can change from hour to hour and is affected by a number of factors including your heartbeat, the amount of fluids that you drink, and your body position. These natural changes cause no injury to your eye. High pressure in the eye is not by itself proof of glaucoma, since normal eye pressure changes from person to person. IOP is still considered an indication of glaucoma. A unique form of this disease is called acute, or angle-closure. Unlike open-angle glaucoma, this kind includes a sudden increase in pressure in the eye. It can cause severe pain, along with distorted vision and vomiting. If this is not treated within hours of the beginning of symptoms, it can cause blindness. Another type is called secondary glaucoma. As the name indicates, this kind is triggered by other conditions found in the eye such as cataracts, tumors, or an eye injury. A small minority of people are afflicted by the fourth type, known as congenital glaucoma. This kind is present at birth, or shortly after and is indicated if the baby has enlarged eyeballs and an amplified sensitivity to light.

Was this helpful? Yes | No | I need help

Ad

How it steals your vision

Glaucoma can take up to 90 percent of your eyesight in one eye without you being aware of it. How? All of us have a naturally occurring blind spot in the back of each eye. This mark on the retina, where your nerve fibers connect together to form the optic nerve, is without light sensing cells. You are not aware of this blind spot because your brain has the capability to paint in the missing bits of the picture. Ironically, it is the brains ability to do this that makes glaucoma so deceptive. Glaucoma is called the sneaky robber of sight, because it doesn't give you any symptoms. The most popular kind is slow and steady and, without any warning causes harm to the nerve structure that joins the eye to the brain.

Was this helpful? Yes | No | I need help

Detecting the thief

Eye check.jpg

Unfortunately, there is no all-inclusive test for glaucoma. An eye specialist may use a device called a tonometer, by checking the fluid pressure in your eyes. This instrument gently flattens the cornea or front part of the eye. The amount of force essential to do this job is measured, and in this way the pressure inside your eye can be gauged. He can also look for signs of glaucoma by using instruments that detect damaged tissue in the nerve structure that connects the eye to the brain.

Was this helpful? Yes | No | I need help

Glaucoma is also discovered by visual field testing. A person can look into a bowl of white light, and there is a light that is brighter that is shone at a little spot inside that bowl. The person acts by pushing a button where they can see the little white light. If they fail to see it when it is at the outer edge of their visual field, this could mean they have glaucoma. There are new instruments being produced that could make this procedure easier.

Was this helpful? Yes | No | I need help

Risk factors for Glaucoma

  1. 1
    Family History of Glaucoma.{
    Advertisement
    Was this step helpful? Yes | No | I need help

  2. 2
    High Blood Pressure.
    Advertisement
    Was this step helpful? Yes | No | I need help

  3. 3
    If you have Diabetes.
    Was this step helpful? Yes | No | I need help

  4. 4
    Common in people of African Descent.
    Was this step helpful? Yes | No | I need help

  5. 5
    If you are over 60, you are six times most likely to get glaucoma.
    Was this step helpful? Yes | No | I need help

  6. 6
    If you are Near-sighted.
    Was this step helpful? Yes | No | I need help

  7. 7
    If you have Hypertension.
    Was this step helpful? Yes | No | I need help

  8. 8
    Eye Injuries can be a factor.
    Was this step helpful? Yes | No | I need help

  9. 9
    You are a long time user of cortisone/steroid that is used in some medical creams and asthma sprays.
    Was this step helpful? Yes | No | I need help

If your parents have glaucoma, your risk of getting it goes up three to five times. If you have a brother or sister that has it, than the risk goes up between five and seven times.

Ways to prevent & treat Glaucoma

  1. 1
    Eat a Healthy Diet of fruits and vegetables.
    Eyedrops.jpg
    Good foods with protein can help save your eyesight. Try to stay away from trans fats.
    Was this step helpful? Yes | No | I need help

  2. 2
    Exercise.
    This is good for blood flow to the eyes.
    Was this step helpful? Yes | No | I need help

  3. 3
    Quit Smoking.
    This can be damaging to your eyesight.
    Was this step helpful? Yes | No | I need help

  4. 4
    Prevent or keep your Diabetes under control.
    Was this step helpful? Yes | No | I need help

  5. 5
    Take Vitamin C.
    It has been known to lower fluid pressure in the eyes.
    Was this step helpful? Yes | No | I need help

  6. 6
    Pills or Eye Drops.
    This helps regulate the pressure.
    Was this step helpful? Yes | No | I need help

  7. 7
    Laser Surgery.
    Was this step helpful? Yes | No | I need help

    Advertisement

Comments

VisiHow welcomes all comments. If you do not want to be anonymous, register or log in. It is free.




Krazeeme3
Premier Author
142 Articles Started
489 Article Edits
11,800 Points
Krazeeme3 is a premier author with VisiHow. Krazeeme3 has achieved the level of "Gunnery Sergeant" with 11,800 points. Krazeeme3 has started 142 articles (including this one) and has also made 489 article edits. 588,000 people have read Krazeeme3's article contributions.
Krazeeme3's Message Board
Krazeeme3: Hi, my name is Krazeeme3.
Krazeeme3: Can I help you with your problem about "Understand What Glaucoma Is and How To Prevent It"?
 

Article Info

Categories : Noindexed pages | Eyes

Recent edits by: Eng, Charmed, Debbie

Share this Article:

Thanks to all authors for creating a page that has been read 10,474 times.

Do you have a question not answered in this article?
Click here to ask one of the writers of this article
x

Thank Our Volunteer Authors.

Would you like to give back to the community by fixing a spelling mistake? Yes | No