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Silicone Hydrogel Contact
Lenses:
A new generation of
"super-permeable" contact
lenses can transmit
unprecedented amounts of
oxygen to your cornea and,
in some cases, enable 30
consecutive days of wear
without removal.
Silicone hydrogel contact
lenses represent a
breakthrough over
traditional hydrogel soft
contact lenses, because
silicone lets so much oxygen
(essential for a healthy
cornea) pass through the
lens. "We're talking about
lenses that breathe six to
seven times more oxygen than
previous lenses.
Silicone is oxygen
permeable. So silicone
hydrogel lenses use both
their water and polymer
content to transmit oxygen
to the eye.
The benefits to wearers
include comfort and
convenience:
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Silicone hydrogel
contact lenses contain
less water than
traditional hydrogel
lenses. As a result,
they aren't as prone to
dehydration while you're
wearing them. For some
people who wear their
lenses for long days,
this can mean better
end-of-day comfort.
-
Silicone hydrogels also
have made 30-day contact
lens wear - sometimes
called "continuous wear"
- available once again.
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