Gas Permeable Contact Lenses: Beneficial for Healthy Eyes
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There are two kinds of contact lenses available to help people with
their vision correction. The most commonly known is the soft lens but
the lesser known is the gas permeable contact lens, also known as GP or
RGP, rigid gas permeable lenses.
Gas permeable lenses are stiff but they do not belong to the category
of hard contacts, which are now out of date. PMMA was the material used
to manufacture the hard lenses. The main problem with this material was
that they were uncomfortable to wear. Another defect with this material
was that it did not permit oxygen to pass. And therefore, the eyes remained
unhealthy.
Soft lenses are even made of the same material i.e. PMMA where as the
gas permeable contact lenses are a made of a new technology – silicone.
The lenses are more flexible because of the new material. Silicone permits
regular flow of oxygen through the GP lenses. This provides the person
with great comfort and good eye health. The flow of oxygen permitted by
the silicone made GP lenses is more than that of the soft lenses.
Even after having a smaller diameter than soft lenses, gas permeable
contact lenses provide a clear vision and have more strength than the
other one. The best thing about GPs is that they can be easily cleaned.
They are even cheaper for they are long lasting than the soft contact
lenses.
GP lenses are stiff and therefore retain its shape even after blinking.
You can break the lenses but can t tear them. They are very long-lasting,
you just need to show a little care and it will last for years.
The most important thing about the RGP lenses is that that it is made
of a material that allows regular flow of oxygen ensuring a healthy eye
and a correct vision. People who are very particular about their vision
quality will be very satisfied after using RGP lenses.
The individuals suffering from astigmatism are very much benefited by
the use of gas permeable lenses than any other lenses. They will understand
the difference once they start using it.
Gas permeable lenses are even available for people having presbyopia
for they come in various multifocal and bifocal designs. People who have
had a refractive surgery can wear the GP lenses.
Even after being a better solution than the soft lenses, GP contacts
are not much preferred because it requires time to adapt. It takes some
time for people to receive the comfort from the lens. To provide this
comfort, Synerg Eyes lens are available in the market.
