"I
have a very bad sight. I wish to change glasses for lenses,
but I am afraid of diseases like "keratitis".
Is everybody who wears contact lenses at risk?"
We are often asked questions like that.
Glasses and contact lenses are not competitors. Each
of them serves a specific purpose. However, lenses quite
often have advantages over glasses at the certain diseases
of eyes: a high degree of short-sightedness or a far-sightedness,
when visual acuity of two eyes if very different, and
for people with astigmatism.
There are two groups of lenses - rigid and soft. However,
many people don't harry to switch from glasses to contact
lenses. One of the reasons is fear of diseases of eyes,
first of all keratitis.
Keratitis is an inflammation of a cornea of an eye.
How wearing contact lenses can affect the risk of keratisis?
First, quality of the lens and how much oxygen the lens
lets through. Brand name soft
contact lenses like Acuvue
contacts or Focus
contact lenses are made of high-quality polymeric
materials high procentage of water. It allows lenses "to
breathe", providing supply of oxygen to a cornea
of an eye.
Secondly, it depends on how thick is the lens, lenses
with more power are thicker, and ther wearers are at greater
risk.
Thirdly, the fit and correct selection of a lens. The
lens should not block plaintive liquid. Liquid space should
be formed between a lens and a cornea. If fit of a lens
too dense vessels are squeezed, and tear does not wash
a cornea. Therefore lenses should be selected individually,
considering not only materials of which they are made,
but the form and a structure of the eye.
Contact lenses that aren’t fitted correctly and
don’t let enough oxydgen through create a high risk
of keratisis. Fitting contact lenses is extremely important
for your eye health.
One more problem – being in the room with high
polution, smoke or dust. Lenses often react even to strongly
flavored deodorants. They very quickly absorb all smells
and gases, which immediately provokes irritation of a
cornea.
Also when you wear contact lens for a long time protein
builds up on it. Therefore contact lenses need to be disinfected,
cleared and stored in a special sterilizing solution daily.
And still it is necessary to remember, what even the best
and expensive lenses are not eternal, no matter how carefully
you look after them. They should be replaced on schedule.
A little thing that got between an eye and a lens also
can cause keratisis. Even if it is a microscopic mote.
In that case you have to remove a lens immediately, and
wash the lens and your eye.
Sleeping in your contact lenses is not permitted under
any conditions (unless you wear an extended wear contact
lenses like Focus
Night and Day). Shot eyelids press on a lens.
Also color contacts of pure quality sold from flea markets
can cause all sort of problems. If you want to change
the color of your eyes go only for safe brand name color
contact lenses like Freshlook
or Acuvue 2 Colors.
First signs of an inflammation of a cornea - the dim
image and later – fear of light. If you notice such
simptoms, you should see a doctor immidiately. This might
mean that your lenses aren’t fitted rightly or are
of a low quality.
