What is the base curve on gas permeable contact lenses?
When ordering gas permeable contact lenses online, there are certain
things you'll need to know. "What is the base curve on gas
permeable contact lenses?" is just one question that will
be asked of you.
What is the base curve ?
The base curve is the shape of the curve on the back surface on
the contact lens. The base curve needs to match the curve of your
eye's cornea in order to work properly. Your physician will conduct
an exam to determine the proper base curve for your lenses.
In addition to the base curve, you'll need to know the power and
diameter of your lenses. This information is included in your prescription.
If you are unsure of these parameters, talk with your doctor.
More about gas permeable contact lenses
Gas permeable contact lenses are made of a firm, durable plastic
that transmits oxygen. Because these lenses don't contain water
like soft lenses do, they resist deposits and are less likely to
become contaminated with bacteria. Gas permeable contact lenses
are easy to clean and disinfect and often last longer than soft
lenses. Gas permeable contact lenses retain their shape well when
you blink, and this tends to provide crisper vision than would a
soft lens. They also are extremely durable and difficult to tear.
The rigidity
of gas permeable contacts also make handling easier than soft
lenses. There is an adaptation period when you first start using
gas permeable contacts, however. Soft lenses tend to be more comfortable
at first, but with use, gas permeable contacts become just as comfortable
to wear.
For more information as well as gas permeable contact lenses, see
product menu at right.
|
