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Today's contact lenses have virtually eliminated the earlier hard
lenses. Hard lenses were made from a material that din't allow valuable
oxygen to pass through to the cornea. They had to be small (to leave
the cornea as uncovered as much as possible),and their size often
made blinking uncomfortable and allowed the lenses to "pop
out".
Today's lenses are made from materials that allow oxygen to pass
freely to the eye, allowing it to "breathe" comfortably.
This enables today's lenses to be bigger in diameter, greatly enhancing
comfort and peripheral vision,whilst reducing the image distortion
that can be caused by some spectacles.
Types of contact lenses are available
Soft lenses
Modern soft contact lenses are made from gel-like plastics, often
with a high water content, that allow oxygen to pass freely to the
eye.Because of thi, soft lenses can be made much larger which in
turn makes them very comfertable and easy to adapt to. Some of the
new ultra-thin soft lenses are so comfortable that new wearers can
leave them in all day right from the start. New users usually find
that they are only mildly aware of standard thickness soft lenses
and that tolerance can be built up fairly easily so that most people
are able to wear them all day within a week.
Categories in this Section
. Conventional Daily Wear
. Conventional Cosmetic Daily
Wear
. Conventional Toric Daily Wear
Disposable Lenses
All tyoes of contact lenses are now available on a planned replacement
programme. New manufacturing techniques have made it possible for
users to have a fresh pair of lenses regularly for about the same
cost over a period as non-disposable lenses. Daily disposable lenses
ara becoming increasingly popular as they eliminate the need for
a lens care routine, but depending on the type of lens and the environment
in which it will be worn, the replacement period can be anything
from one day to two years.
Categories in this Section
. Quaterly
Disposable
. Monthly
Disposable
. Monthly
Cosmetic Disposable
. Monthly
Toric Disposable
. Fortnightly
Disposable
. Daily Disposable
. Monthly
Bifocal
. Monthly
MultiFocal
Extended wear lenses
Most contact lenses are worn on a daily basis, being removed in
the evening and put back in next morning, Special extended wear
soft lenses are now available which may be recommended by your practitioner,
which allow you to sleep in them. Typically they are replaced weekly
or monthly.
Categories in this Section
Extended Wear
Solutions
Information to come here
Categories in this Section
Extended Wear
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