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Leonardo da
Vinci was, the
first to suggest
the use of
contact lenses
to correct
defective vision
in 1508. In
Germany, nearly
four centuries
later, the first
contact lens
manufactured was
a glass shell
that covered the
entire surface
of the eye.
Modern contact
lenses appeared
in the 1940s.
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Today, many
people prefer them to eyeglasses
for reasons of convenience or
cosmetics, although spectacles
offer far more protection for
the eye.
Present-day
contact lenses
cover only the
cornea of the
eye;
So-called soft
lenses, now in
common use, are
made from a soft
plastic material
that molds
itself to the
shape of the
cornea. |
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With advancing
technology
Contact Lenses
can correct all
forms of visual
defects
including
Astigmatism
safely and
comfortably.
There are
basically two
types of contact
lenses : Rigid
and Soft. Both
types come in
varying
materials with
different levels
of oxygen
permeability.
The higher the
oxygen
permeability the
better it is for
the eye. |
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Contact Lens
care is the most
important part
of contact lens
wear. Good eye
care also
includes proper
care of the
lenses. |
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All types of
contact lenses
should always be
kept clean,
disinfected and
hydrated. Lens
hygiene is the
key to a
comfortable
wear. All
contact lenses
accumulate a
variety of
deposits, from
the eye itself
whilst wearing
them, and from
the environment.
The environment
also contributes towards
building up of these
deposits especially on
soft lenses. |
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The chemical
pollution from cars, factories
etc., dust, metal in the air get
embedded onto the surface,
causing harmful contamination on
the lens surface, over a period
of time. In order to prevent
these deposits, all contact
lenses should be cleaned, soaked
and disinfected daily or
disposable should be used. |
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A new system of
prescribing and
manufacturing contact
lenses has been
introduced known as the
Disposable contact lens,
which enables the
replacement of lenses on
Daily, Weekly, Monthly,
and Three Monthly basis.
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The advantages
of this system of prescribing is
that, frequent infections due to
protein deposits and
environmental pollution are
almost eliminated, the eye gets
more Oxygen, Vision and Comfort
are greatly increased, and best
of all, simple cleaning systems
like multipurpose solutions can
be used safely. |
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To read Frequently Asked
Questions on Contact Lens
Click Here |
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For Any further questions,
Please Click Here |
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| Copyright©2006
Sahajanand Eye Care Hospital Pvt. Ltd..
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At :
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