Saturday, 6 January 2018

Alarming Causes Of Glaucoma You Should Know

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Glaucoma is a condition that causes damage to your eye 's optic nerve and gets worse over time. It's often linked to a buildup of pressure inside your eye . Glaucoma tends to be inherited and may not show up until later in life. The increased pressure, called intraocular pressure, can damage the optic nerve, which transmits images to your brain . If the damage continues, glaucoma can lead to permanent vision loss. Without treatment, glaucoma can cause total permanent blindness within a few years.
When the optic nerve is damaged, the impulses sent to the brain from the retina at the back of the eye are disrupted, causing an altercation between what you actually see and the images transmitted to your brain.
It develops gradually over time and can go completely unnoticed until it reaches an advanced stage, so you should regularly see an eye doctor to prevent any further damage. If not taken care of, glaucoma can cause vision loss or even blindness.
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At this time, lost vision can’t be restored. However, lowering eye pressure can help preserve the sight you have. Most people with glaucoma who follow their treatment plan and have regular eye exams don’t go blind. Glaucoma usually causes no symptoms early in its course, at which time it can only be diagnosed by regular eye examinations (screenings with the frequency of examination based on age and the presence of other risk factors).
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Risk Factors
You’re more likely to get it if you:
◾Ethnic background - East Asians, African Americans, and those of Hispanic descent have a higher risk of developing glaucoma, compared with Caucasians.
◾Are over 40
◾Have a family history of glaucoma
◾Have poor vision
◾Have diabetes
◾Take certain steroid medications , like
prednisone
◾Have had trauma to the eye or eyes.
◾Myopia (nearsightedness)

According to the American Academy of Ophthalmology, the most common type of glaucoma called primary open-angle glaucoma affects an estimated 2.2 million people in the United States, and that number is expected to increase to 3.3 million by 2020 as the U.S. population ages.

Causes Of Glaucoma
It’s the result of high fluid pressure inside your eye. This happens when the liquid in the front part of the eye doesn't circulate the way it should. Normally, the fluid, called aqueous humor, flows out of your eye through a mesh-like channel. If this channel gets blocked, the liquid builds up. That’s what causes glaucoma. The reason for the blockage is unknown, but doctors do know it can be inherited, meaning it’s passed from parents to children.


Less common causes include a blunt or chemical injury to your eye, severe eye infection, blocked blood vessels inside the eye, and inflammatory conditions. It’s rare, but sometimes eye surgery to correct another condition can bring it on. It usually affects both eyes , but it may be worse in one than the other.



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Author: Richard Smith