|
Laser eye surgery can bring new freedom
and independence from corrective lenses. Although refractive surgery
has been available for a number of years, recent advances in laser
procedures have made surgery a safer and more realistic option for
many people. Laser eye surgery can reduce or eliminate your need for
glasses or contact lenses, freeing you to be more active and less
limited in your daily routine.
At your initial preoperative appointment Mr. Ansari will meet with you
personally to discuss your needs and goals in terms of vision
correction. He will thoroughly examine your eyes and perform a number
of painless tests to determine which vision correction options are
best-suited to you.
The most commonly used type of laser surgery for vision correction is
called LASIK, or laser in situ keratomileusis. Because refractive
errors like short sight, long sight, and astigmatism are caused by
incorrect corneal curvature, LASIK works by reshaping the cornea of
the eye.
 |
Shortsight or
Myopia
This is due to the cornea being too steeply curved or the eye is
longer than normal. Therefore, light rays fall in front of the
retina, resulting in blurred distance vision. |
 |
Astigmatism
Astigmatism is caused by the cornea being shaped rather like a
rugby ball instead of being spherical. This produces two different
focal points which can blur images at all distances. |
 |
Longsight or
Hyperopia
Longsight occurs if the cornea is too flat or the eye is too
short, therefore light rays focus on a point behind the retina
causing near vision to become blurred.
|
LASIK is a procedure that combines
micro-surgery and excimer laser treatment to remove microscopic
amounts of tissue within the deeper layers of the cornea, rather than
on the surface of the eye.
Using a specially designed automated instrument, called a
microkeratome, a thin layer of cornea is lifted to create a hinged
flap.
The flap is then gently lifted up and the excimer laser is used to
remove a precalculated microscopic amount of tissue underneath it. The
flap is then repositioned for a quick and natural recovery.
Patients can enjoy the benefits of LASIK almost immediately, with most
experiencing a marked improvement within 24 hours.
 |
LASIK
The laser treatment can be performed underneath the flap, which is
then repositioned.
THE RESULTS
With over 98% of patients treated achieving legal driving standard
vision or better without the assistance of glasses or contact lenses,
it's easy to understand why millions of people world-wide are already
enjoying the benefits of laser sight correction.
Our ophthalmologists and counsellors are committed to your care and
anxious to answer your questions as you consider the procedure.
Immediately before laser surgery, Mr. Ansari numbs the eye with
anaesthetic eye drops. A lid speculum helps to hold the eye open, and
a suction ring creates the necessary pressure on the eye. Using a
special instrument called a microkeratome, Mr. Ansari then cuts a thin
flap in the cornea, leaving a small hinge attached at one end. The
computer-controlled laser is then used to remove a predetermined depth
of tissue from beneath the flap and change the shape of the cornea.
The flap is then laid back into place, where it protects the eye and
heals without stitches.
Wavefront LASIK
Wavefront LASIK a unique treatment for every patient
In recent times the aim has been to give customized (bespoke)
treatment for all patients. In customizing treatment we can offer an
even greater potential for perfect vision, by being able to identify
imperfections that influence eyesight quality.
There are several types of imperfections, referred to as lower and
higher – order aberrations that can have a significant effect on your
vision. Like a finger print, each person’s vision is 100% unique to
their eyes. Before recent advancements in technology, it was only
possible to measure lower-order aberrations such as short sight, long
sight and astigmatism and correct these by glasses, contact lenses or
conventional laser eye surgery. This could only provide a certain
level of correction - despite an individuals specific needs.
Using the Technolas 2 excimer laser system in combination with the
Zyoptix mapping technology, we can also treat higher – order
aberrations and potentially improve your visual acuity. This is
measured against a standard numerical scale such as 20/20 and may even
enhance the overall quality and clarity of your vision.
During the scanning process a fine beam of light is projected into the
eye. The beam passes through the entire optical system and is
reflected back by the retina. By monitoring and measuring the
returning reflection over many points of the pupil, our surgeons are
able to identify and detect even the most subtle imperfections or
aberrations. The wavefront technology enables our surgeons to build up
an accurate and unique map of your eye, which allows the treatment to
be customized to your individual and specific needs.
The wavefront technology does not treat presbyopia – the natural
ageing process that everybody undergoes, where reading glasses are
required in middle age.
We always aim to be at the forefront of corrective laser eye surgery
breakthroughs. 75% of all treatments now are wavefront guided, and
this proportion will increase.
100% were at driving standard or better
98% could see 20/20 or better
70% could see better than 20/16
Results have shown that the wavefront technology, in addressing the
higher - order aberrations, provided an improvement in visual acuity
in low contrast sensitivity situations and demonstrated an improvement
in vision quality over conventional laser vision correction.
For more information about how Wavefront could improve your vision,
please contact Mr Ansari on the contact numbers and e-mail provided.
|
