When Should I Go To Ophthalmologist..!
How To Care About My Contact Lenses..!
The
Lasik
For
over 25 years doctors placed incisions in
the cornea to treat nearsightedness.
farsightedness, and
astigmatism. In the early 1980s, they
began looking at lasers to improve
the precision and predictability
of
altering the
shape of the cornea. Researchers
found that the Excimer laser could remove
tissue with up to 0.25 microns of
accuracy. Now, in its second
decade of use, the technologically advanced Excimer laser
has added a tremendous amount
of
precision, control and safety to the
surgical correction of vision errors. Using this remarkable technology,
the cornea is reshaped to
confirm to your glasses or contact lens prescription,
thereby reducing or even
eliminating
a lifetime of dependence on
corrective lenses for thousands of
persons every year.
LASIK
or Laser in the situ Keratomileusis offers a number of benefits
over other forms of laser vision
correction because it is
performed under a protective layer of corneal tissue. As a result, there
is less surface area to heal, less risk of scarring, less risk of
corneal haze, less postoperative discomfort, less postoperative need for
medications, and vision returns more rapidly, often within a day or so.
LASIK can also treat a higher range of vision errors.
Refractive Errors
$
MYOPIA
(Nearsightedness)
Myopia or
nearsightedness occurs when
light rays are focused in front of
the retina instead of
directly on the retina
$
HYPEROPIA
(Farsightedness)
Hyperopia or
farsightedness
occurs when
light rays are
not bent enough to
focus on
the retina.
$
ASTIGMATISM
Regular
astigmatism
occurs when light
rays are focused at
more than one
point
on
the retina.
LASIK (Laser in-Situ Keratomileusi
s)
The Excimer laser removes microscopic layers of corneal tissue to change
its shape, allowing light rays to focus more directly on the retina