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How Does A Contact Lens Work |
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Contact lenses are generally made from a gel like
plastic that contains around 38% to 79% water thus providing better
comfort and longer life which makes them soft. A contact lens is a very
thin optical disc smaller than a dime which is worn directly on the eye.
Contact lens basically rests on the cornea. It is comfortably held in
place by by eyelid's pressure or by adhering to the tear film that
covers the front of the eye.
The contact lens
functions as the initial optical element of the eye when in place on the
cornea. The optics of the contact lens combine with the optics of the
eye to properly focus light on the retina thus resulting in a clear
vision. Contact lenses outperform the traditional glasses as they are
easy to use and provide excellent peripheral vision without blocking the
eyes to look at sides.
New materials and lens care technologies have
transformed todays contacts making them comfortable, safer and easier to
wear. Today many types of contact lenses are available in the market
keeping in mind all the requirements of people with different needs and
vision problems. The appropriate type of lens would be determined by
your doctor after taking your eye exam.
Contact lenses enjoy the
biggest advantage of providing an excellent peripheral vision. It also
helps in reducing the image distortion caused by the eyeglasses.
Conditions like presbyopia, nearsightedness, farsightedness, and alike
can be easily corrected by contact lenses.
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