Gas Permeable
Lenses
Gas Permeable lenses are smaller and harder
than soft lenses. They float on the surface of the eye within the
coloured part, the iris.
They:
 Let
your eyes breathe more as they allow more oxygen through the lens.
Are
good for very irregular shaped corneas – they provide sharper
vision.
Are
more suitable for very dry eyes.
Correct
both low and very high astigmatism.
Have
a lower risk ofinfection or allergy.
These type of lenses are also used to correct irregular corneal conditions
such as kerataconus.
Frequent Replacement Gas Permeable Lenses
Because Gas Permeable lenses are more deposit resistant they do not
need to be changed as frequently as soft. However the surface quality
still degrades with time and for long term comfort and health it is
still advisable to change them regularly.
Currently, three monthly, six monthly and annual disposable Gas Permeable
replacement lens schemes are available. |
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