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Do
not let it to steel your vision
 
Glaucoma is an eye disease caused by increased pressure inside
the eyeball, when detected early enough through regular eye exams
is easily treatable.
People
who have their eyes regularly checked with either an optometrist
or an ophthalmologist as part of a routine eye exam will be as part
of the exam tested for a serious eye disease known as glaucoma.
This is a relatively silent disease that can strike at anytime,
and when symptoms are finally detected, for some it may be too late.
We
can sub-categorize glaucoma as--acute and chronic. Thankfully the
acute form is rare, but nonetheless when it does occur, immediate
treatment should be sought to prevent permanent loss of vision.
Basically,
glaucoma is a condition where pressures will build up within the
eyeball. It is like a sink that is filling up with water, and
with the drain closed. If you place some kind of a flexible cover
over the sink, the cover will start to bulge outward. Similarly,
this is what happens inside the eyeball, and if left untreated can
lead to impaired vision or permanent blindness.
The
eye normally discharges this buildup of fluid through a network
of tissues called a “drainage angle.” Problems begin when proper
drainage within the eyeball does not take place through this area
called the “drainage angle,” which is located between the iris and
the cornea. As long as this “drainage angle” does not function correctly,
the pressures will continue to build in the eyeball, and this in
turn will reduce the blood flow to the retina and the optic nerve.
Without
nourishment from the blood, fibers of the optic nerve can die. The
person’s vision starts to dim, and if left further untreated this
can and most often does lead to permanent blindness.
This
condition is easily treated through the use of a laser, i.e. by
creating a small opening in the iris to relieve the pressure, or
even creating a new opening that will successfully correct this
potentially debilitating disease.
Some
of the early symptoms to watch out for are blurred vision, loss
of peripheral vision, teary eyes, and headaches. In the more serious
forms there can be sudden eye pain, again blurred vision, halos
of lights, even nausea and vomiting.
Other
treatments involved in this disease are injections and medications
that will help alleviate the pressure behind the eyeball.
Thankfully,
glaucoma is treatable, especially the acute form and even if that
is present, proper immediate treatment will restore normal vision.
In chronic glaucoma, early detection is the only known cure at this
time.
If
a person is taking certain medications such as for asthma, irritable
bowel syndrome, or an antidepressant, they should regularly scheduled
an eye exam as certain medication can bring on symptoms of this
disease.
By
having the eyes examined every three to five years, especially for
persons over 40 will provide an early enough detection if glaucoma
is indeed present.
What
are the symptoms of glaucoma? What are the causes?
Are there any different types of Glaucoma?
Does
high eye pressure cause damage to vision?
What are the normal eye pressure ranges?
What is the difference between high eye pressure
and Glaucoma?
How fast does the condition typically progress? Is
it reversible?
How can I decrease my eye pressure? What are the
treatment options?
Does medication prevent the condition from worsening?
What can I expect in the years to come? Will I
go blind?
Does diet, exercise, or change in behaviors help?
What
are the symptoms of glaucoma? What are the causes?
You
cannot see or feel the pressure in your eye because, in its early
stages, glaucoma shows no symptoms. In fact, up to 40% of your
optic nerve can be damaged before you notice any vision loss.
It
was once thought that high eye pressure was the main cause of
glaucoma. Although high eye pressure is a risk factor, it is now
known that other factors are involved.
Are there any different types of Glaucoma?
There
are many different types of glaucoma, but we have listed only
the most common ones below.
Open-angle
glaucoma (primary open-angle glaucoma — POAG) is the most
common form of glaucoma and the one most often associated with
aging. It occurs when fluid from the eye cannot pass through the
eye’s filtration area to drain. This buildup causes increased
eye pressure, which may damage the optic nerve.
Angle-closure
glaucoma (acute glaucoma) is a condition in which fluid at
the front of the eye can’t leave because a part of the iris is
blocking the angle through which it would flow. This type of glaucoma
may result in a sudden increase in eye pressure, which comes with
severe pain and nausea, and is considered a medical emergency.
Congenital
glaucoma is a condition that exists when children are born
with defects in the angle of their eyes. These defects keep the
fluid in the eye from draining, causing eye pressure to increase.
Secondary
glaucoma can develop following an eye injury or trauma to
the eye. This type of glaucoma may develop because of problems
from eye surgeries, cataracts, certain eye tumors, or eye trauma.
Pigmentary
glaucoma occurs when small parts of pigment from the iris
(the colored part of the eye) break off and clog the angle where
fluid flows out of the eye. This type of glaucoma is a form of
secondary open-angle glaucoma.
Normal-tension
glaucoma (NTG) occurs when there is unexpected optic nerve
damage in people who have normal eye pressure. This damage comes
with the same narrowed side vision as open-angle glaucoma, and
is treated in the same way.
Does
high eye pressure cause damage to vision?
High
eye pressure occurs when drainage channels in the eye become clogged,
causing the pressure in the eye to increase. This pressure can
damage the optic nerve. The optic nerve is like a cable. It has
more than a million fibers that send messages about what we see
from the eye to the brain. If left untreated, damage increases,
and may eventually lead to blindness.
What
are the normal eye pressure ranges?
The
normal range of eye pressure is from 8 to 21 mm Hg, but there
are a number of factors, for instance, the thickness of your cornea,
that can affect this reading. Different people may have different
sensitivity to the level of pressure. Some eyes can tolerate a
higher pressure than others, but as a general rule, the lower
your eye pressure, the lower your risk is of developing glaucoma.
What
is the difference between high eye pressure and glaucoma?
Glaucoma
and high eye pressure are not the same thing, but are closely
related. High eye pressure occurs when drainage channels in the
eye become clogged, causing the pressure in the eye to increase.
This increased pressure puts pressure on the optic nerve, which
can cause damage to it. Glaucoma is the general term used to describe
damage to the optic nerve caused by high eye pressure.
How
fast does the condition typically progress? Is it reversible?
Glaucoma
progresses very differently for each individual, depending on
the type of glaucoma, how early it is diagnosed, and if it is
being treated. Normally, this damage progresses over a number
of years. However, in some cases, it has been known to progress
much more quickly.
Unfortunately,
damage caused by glaucoma is irreversible. For this reason, it
is important to see your eye doctor on a regular basis. Through
early detection, you and your doctor can help preserve your vision.
How
can I decrease my eye pressure? What are the treatment options?
There
are many treatment options for lowering eye pressure, including
eyedrops, pills, laser surgery, eye operations, or a combination
of methods..
Does
medication prevent the condition from worsening?
Yes.
Medicated eyedrops focus on lowering eye pressure because studies
have suggested that, for most people, lowering eye pressure slows
the advancement of glaucoma.
What
can I expect in the years to come? Will I go blind?
Although
there is no cure for glaucoma at this time, studies suggest, for
most people, lowering eye pressure slows the advance of glaucoma.
For this reason, glaucoma treatments focus on lowering eye pressure.
Glaucoma can be managed and controlled with medication and/or
surgery, and you can go about your life as you did before.
The
good news is that glaucoma sufferers rarely lose their sight,
as long as the proper precautions are taken. If glaucoma is left
untreated, damage increases, which may eventually lead to blindness.
You should have your eyes examined regularly (check with your
eye doctor about how often) and make sure you take your medicine
as your doctor has instructed.
Does
diet, exercise, or change in behaviors help?
There
is no medical research that shows that any type of food or diet
affects glaucoma, however, some studies suggest that exercise
may be beneficial. Exercise lowers eye pressure and improves blood
flow to the entire body, including the optic nerve. It is important
to remember that exercise in which the head is lower than the
heart for a long period may increase eye pressure. Those exercises
should be avoided.
In
addition, it is always a good idea to avoid smoking or second-hand
smoke. Tobacco can irritate glaucoma and may even worsen the disease.
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