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Multifocal contact lenses are made up of soft material so that they
could be used in our daily routine. Today multifocal lenses are
available in the form of soft bifocals which are disposable even
daily. Multifocal contact lenses designed as RGP(rigid gas permeable)
are available.
With the help of
new technology, the multifocal lenses are being made that they help
in vision whether it be distance or near and even astigmatism
correction. The toric contact lenses and the lenses permeable to gas
are available as the multifocals. To keep the contact lenses in one
position, they are made with different designs. In some lenses the
thickness of the lower part of the lens is maintained(also known as
the ballast system). Where as in some lenses both the upper and lower
part of the lenses is made thinner and the middle part is made a bit
thicker. These kinds of lenses have proved to be very beneficial for
the astigmatic correction.
The adaptation to the different multifocal lenses can not be
judged easily. So, whenever you go for the multifocal lenses, always
consult the eye specialist as he is the best person who can judge
which eye needs which kind of lens. Monovision fit should be used for
the person not comfortable with the multifocal lenses. Our dominant
eye is used for distant viewing and for the near view, the non
dominant eye is used by monovision. Most of the right handed people
have their dominant right eye and the people who are left handed are
mostly found to have their dominant left eye. But this judgment of
the dominance of eye should be made by an eye specialist.
For the
multifocals the single vision contacts are not used, rather they are
used for mostly the monofits. The brain can appropriately recognize
the images until there is a normal difference with the near vision
and the distant vision prescriptions.
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