22 Feb 2008 03:49:06 | Dr. Dhavid Cooper
A Contact is designed to rest on the cornea, the clear outer
surface of the eye.
Contacts are held in place mainly by adhering to the tear film
that covers the front of the eye and, to a lesser extent, by
pressure from the eyelids.
As the eyelid blinks, it glides over the surface of the contact
lens and causes it to move slightly. This movement allows the
tears to provide necessary lubrication to the cornea and helps
flush away debris between the cornea and the contact lens.
A contact is an optical medical device, primarily used to
correct myopia, hyperopia, astigmatism and reading problems. In
these conditions, light is not focused properly on the retina,
the layer of nerve endings in the back of the eye that converts
light to electrochemical impulses. When light is not focused
properly on the retina, the result is blurred or imperfect
vision.
When in place on the cornea, the contact lens functions as the
initial optical element of the eye. The optics combine with the
optics of the eye to properly focus light on the retina. The
result is clear vision.
Hypermetropia is not a disease, nor does it mean that you have
"bad eyes." It simply means that you have a variation in the
shape of your eyeball. The degree of variation will determine
whether or not you will need help.
What causes farsightedness? Hypermetropia most commonly occurs
because the eyeball is too short; that is, shorter from front to
back than is normal. In some cases, hypermetropia may be caused
by the cornea having too little curvature.
If you've ever worn an ordinary products, you know that deposits
can build up on the surfaces and cause cloudy vision and that
scratchy, uncomfortable feeling.
But an ACUVUE eliminates the problem of long-term deposit
build-up because they are never worn longer than one day.
Your vision is always sharp and clear and always comfortable.
Better still, the cost of an ACUVUE disposable products is no
more per day than what you might pay for a cup of coffee and a
muffin.
A growing number of people now use these products, which can be
worn for either a single day, or up to seven, depending on the
wearing schedule prescribed by your eye care professional.
Even bifocal wearers can now get discount prices when ordering.
Six per box is the average number per supplier. They are usually
used for anywhere from 1 to 2 weeks on a daily wear basis and
approximately 1 week if used as extended wear.
Replacing frequently usually means better eye health. Other
obvious advantages are having spare ones immediately available
should one get torn or lost.
Be sure you wear your back up eye glasses at least once a week
to give your eyes and cornea a chance to reoxygenate.
Symptoms of overwear include burning eyes, dryness, blurred
vision and seeing halos around lights.
This can lead to serious corneal problems and infections.
Consult your eye doctor regularly for eye examinations and
follow up care.
Frequent and Planned Replacement are replaced on a planned
schedule, most often every two weeks, monthly or quarterly.
These items usually come 4 to 6 per box.
Eye care professionals may recommend enzyming them if they are
used longer than one month. A popular brand is the Colored
Monthly from Ciba Vision.
For the largest online selection of eyewear products, including
designer sunglasses and eyeglasses from Calvin Klein, Ralph
Lauren, Eddie Bauer, Modo, Saki, Silhouette, Laura Ashley and
hundreds of others, visit the World's Largest Online Optical
Store at FramesDirect.com.
Ordering is easy. Simply call us at 1-800-248-9427 or order
online by selecting your products from the drop down selection.
Operators are available Monday through Friday and half day on
Saturdays to take your order. If you don't have your
prescription, we will call your doctor directly and get it for
you.
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About Author :
============================== Dr. David Cooper and Dr. Guy
Hodgson are the founders of FramesDirect.com which
has been recognized for outstanding customer service and
satisfaction. FramesDirect.com is fast becoming the global
leader of prescription eyeglasses, contact lenses and sun
glasses sales online. ==============================