Laser Eye Surgery-What Actually Happens
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Laser eye surgery is fast becoming on of the most popular
elective surgeries in the world today. It is a fairly
straightforward procedure, but many people do not know how it is
performed. This lack of knowledge may be stopping some good
candidates for the surgery from having it done.
The surgeon will be performing the surgery with a rather large
machine. While it may look intimidating, it is necessary as it
has a camera, the laser and computer attached to it. The doctor
will cut a flap in the cornea with a scalpel, and then switch to
the laser for the recardinalder of the surgery.
That is it. The laser eye surgery is completed. Now it is time
for the recovery process to begin. Since the cornea is not
sutured together after the surgery, the surgeon will place an
eye patch over it. This patch will protect the cornea from being
accidentally harmed.
When you go to the clinic for your procedure, you will be taken
to a room with a recliner. This is where you will be seated.
Your eye will be numbed and the eyelid clamped open to prevent
blinking.
Most patients return to work with in a couple of days and most
normal activities with in a couple of weeks. Your recovery will,
of course, depend upon you and your particular situation.
However, you should expect to have better vision within a short
amount of time following the surgery.
When you are contemplating laser eye surgery, also known as
LASIK eye surgery, the first step is to speak with your eye care
professional. Your doctor will be able to tell you if you are
indeed a candidate. During the prescreening phase, they will go
over a list of requirements such as: No change in eye
prescriptions with in the last year That you have no eye
diseases That you can sit still for an hour straight That you
fully understand after surgery care
It is a good idea to have someone drive you to the clinic for
the procedure, as you will not be able to see clearly enough to
drive yourself. You may also experience light sensitivity for a
short period of time.
About the author:
John Mancini has been writing about Eye Surgery online and
offline for a long time. Visit
http://laser-eye-surgery-center.com or
http://laser-eye-surgery-central.info to read fresh about matters
like laser eye surgery and eye surgery.For more information: LASIK Surgery
Contact Lenses And Why We Wear Them
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We wear contact lenses cardinally because we are vain.
But, they come in handy for any kind of sports, people even wear
them while swimming although you have to watch they don’t float
out.
The Inventor of the contact lens concept was Leonardo da Vinci
in 1508,who sketched and described several forms of contact
lenses.
Hard contact lenses
Hard contact lenses are manufactured from a rigid material,
PolyMethylMethacrylate (PMMA). This substance is also combined
with other plastics to increase the oxygen permeability. Visual
acuity is perfect.
In 1632 Rene Descartes of France suggests the first hard contact
lens, which idea was actually developed in 1801 by Thomas Young;
resulting in a quarter-inch-long, water-filled glass tube, the
outer end having a microscopic lens,and he is the first user.
In 1887 a German Glassblower, F.E. Muller of
Wiesbaden,fabricates the first piece of glass acting as a
contact lens which could be seen through seen through and
tolerated.
Soft daily wear lenses have the fundamental advantage that they allow
the eyes to be oxygenated through the lens.
They’re also easy to adapt to and difficult to lose. You can get
them in all kinds of colours. Fantastic for wearing in sport
activities.
Not a panacea for all vision problems and they have to be
thoroughly cleaned. Maximum lifespan 1 year.
In 1936 William Feinbloom, a New York optometrist, manufactures
the first American- made plastic contact lenses. These were
still hard lenses.
The first soft, water-absorbing plastic lenses were developed in
1960 by Otto Wichterle and Drahoslav Lim .
Disposable lenses
1.Extended-wear disposable
Soft lenses that you are able to wear for an extended period of
time, up to six nights, and then you can throw them away. They
hardly require any cleaning and have virtually no chance of
causing eye infection if user instructions are followed.
You can get them tinted and as bifocals. Your Vision may not be
as sharp as with other lenses and they do not correct all vision
problems. More difficult to handle.
2. Planned soft daily replacement lenses
Soft daily wear lenses that you replace on a planned schedule,
either every two weeks, monthly or quarterly. Require thorough
cleaning and disinfection. all vision problems. Not easy to
handle.
Colored lenses
There are 4 types of colored contact lenses:
visible tints, tints to enhance, color opaque tints and tints
that filter light Most of these colored contact lenses are
available in plano form (without visual correction), as well as
for astigmatism, who need bifocal correction, or who want a
disposable or frequent replacement lens.
Astigmatic lenses (toric) were first introduced in 1978 and
approved for distribution in the United States.
These lenses contain both a spherical and cylinder component to
correct prescriptions which have astigmatism. Lenses may be
thicker in one meridian or have modified thickness profiles to
enable the lens to criticaltain the correct orientation on the eye.
Bifocal contacts became available in 1982 for commercial
distribution.
There are a variety of designs in bifocals, essentially all
trying to provide a transition or reading zone for use at near
distances. The different designs include; + aspheric multifocal
- + simultaneous vision concentric - has either a central near
or distance zone with surrounding zone of opposite type to
centre (eg, centre near,distance surround) +
diffraction/holographic - based on diffraction grating
principles.
Eye exercises There seems to be a natural alternative to
eyeglasses, contacts, intacs, and even Lasik surgery, which is a
series of eye muscle exercises over a period of 30 days that
supposedly corrects your vision to quite an extent.
The validity of this method of vision correction has not been
fully proven.
About the author:
About Cataracts by J
Schipper Contact
Lenses by J SchipperFor more information: lasik eye surgeons
A treatise on diseases of the eye; for the use of general practitioners. To which is added, a series of test types for determining the exact state of vision. By Henry C. Angell, M.D. : Vol. 2
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A treatise on diseases of the eye; for the use of general practitioners. To which is added, a series of test types for determining the exact state of vision. By Henry C. Angell, M.D. : Vol. 2
This volume is produced from digital images created through the University of Michigan University Library’s preservation reformatting program.
How Safe Is Lasik Laser Eye Surgery ?About the time that people hit middle age, they start noticing a number of changes in their bodies and one of the changes that will often motivate people to see a doctor is when their vision is compro.
For more information: laser eye correction surgeryAtlas of the external diseases of the eye,: Including a brief treatise on the pathology and treatment, (Saunders’ medical hand-atlases)
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Selected topics on the eye in systemic disease
Abstract: coates eye disease
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Selected topics on the eye in systemic disease
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