You are familiar
with increase in pressure at work and increase in blood pressure, but did
you know about eye pressure?
Increase in eye pressure leads to glaucoma.
Lets discuss the detail eye structure, to better understand the concept of
The fluid present in front portion of the eye is called as the
It is produced by the ciliary processes. The fluid moves from the front of the
lens across the pupil, into the anterior chamber, AC. Here it circulates. It exits
the anterior chamber via the Angle. The Angle of the eye is formed of a sieve-like
trabecular meshwork (TM),
and a collecting pipe the Schlemm's canal . From the
Schlemm's canal, aqueous enters the
veins and thus into the general blood stream.
what goes wrong in
In glaucoma, there is an increased resistance to the outflow of the aqueous,
leading to increased pressure in the eye.
It is like
your bath-tub is not draining. The problem could be in the tub pipe in
your home or something is the matter with the whole drainage system.
The word glaucoma comes
from Greek word "glauco" meaning 'bright'. It must have been
given for the disease in which there is blindness with "bright
eyes" versus the "cloudy eyes" of cataract.
Glaucoma is of two main types -
Open Angle Glaucoma
In this, there is an increased resistance to the
outflow of the aqueous. The exact cause of resistance is not known. This type is most common.
Angle Closure Glaucoma
In this, the angle from where aqueous exits is narrow, thus causing glaucoma.
This is less common.
Risk factors for glaucoma:
These are the features which may make a person more
likely to get glaucoma. We all have to be aware of these factors since
glaucoma strikes silently.
What if you do have one or more of
the risk factors?
You do not have to take tension if a certain factor
holds true for you, but consider yourself lucky, that the glaucoma may be
detected earlier, than your friends who may awaken late! You ought to get
your eye pressure checked regularly and confide to the eye doctor about
your risk factors.
If you are above 30 years, once a year eye pressure
check is recommended.