A normal eye pressure can range from 10 to 21 mmHg. This eye pressure
can provide important information in determining whether or not someone
has a high chance of suffering from glaucoma. This condition can lead
to experience vision problems and total blindness.
One of the most efficient ways to determine if someone has a high
probability of experiencing glaucoma is by checking the intraocular
pressure. The pressure in the eye can increase temporarily by many
factors. Certain positions like being upside down, drinking coffee and
weight lifting can momentarily elevate the pressure in your eyes.
Measuring your eye pressure just after doing any of the previous
activities can lead to a false reading. This false reading could be the
cause of wrong diagnosis. That’s why is
very important to refrain from those activities just before getting
your eyes checked. Even when the normal eye pressure can go up to 21
mmHg; many people can be on the limit of 21 mmHg and be completely
fine. The pressures inside the eyes are measured by an instrument
called a tonometer.
The intraocular pressure can vary greatly but when the readings are
constantly over 22 mm Hg is called intraocular hypertension.
intraocular hypertension has many characteristics some of them are:
high eye pressure over 21 mmHg in one or both eyes in more than one
- no peripheral visual problems related to glaucoma
- no damage
to the optic nerve
- no sign of any other eye disease
Having a high
pressure in the eyes is not a condition but a way to identify anyone
who has a high risk of suffering from glaucoma. A person with glaucoma
is likely to have high pressure in the eyes plus optic nerve damage and
Another important test often used with the normal eye pressure test is
the corneal thickness test. If the eyes have a corneal thickness of
less than 555 microns the risk of suffering of glaucoma is many times
higher than those with a thicker cornea. The thickness of the cornea is
not a factor alone but when combined with the internal pressure of the
eye it can be very important.
If you have a
thick cornea there is chance that the instrument used to
measure the pressure might show a false high eye pressure reading.
the other hand measures of people with thin corneas might indicate a
false low eye pressure. This fact can be very helpful in order to
identify people at risk as people with thick corneas and low eye
pressure are very low risk and the ones with thin corneas and high eye
pressure are at very high risk of suffering from glaucoma.
get the pressure of your eyes checked at least every 2 years to prevent
any complications in your vision.
from Normal Eye Pressure to Eye Stroke
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