Q&A about Eye Classes and LASIK
designs do I need?
What lens materials should I choose?
What options can I add to the lenses of my
What is LASIK?
Am I a good candidate for LASIK and what procedure do I need?
What is the risk of Laser correction surgery?
What are floaters? How to deal with
What lens designs do I need?
The following are the
options of the lens designs. You can choose it base on your
prescription, life style and personal preference:
This all-purpose len is available in all materials, and can
be used for either distance or near vision correction.
provide both far (driving) and near (reading map) correction
in one lens.
are basically progressive lenses with visible lines. The
majority of the lens is for distance viewing, while the
center portion is divided into intermediate and near viewing
correct for far (driving a vehicle), intermediate
(viewing the computer), and near (reading a map) all in one
lens. Because there is no visible line, progressives have
the appearance of single-vision lenses and are, therefore,
the most cosmetically desirable multifocal.
Lens offers less magnification or minification of the
eyes, as well as in images viewed. Edge-to-edge visual
clarity means that as the eyes move, vision will remain
clear rather than ”blur out” when the viewer looks away from
the center of the lens.
2. What lens materials
should I choose?
The following are the options
of the lens material. You can choose it based on your
prescription, life style and personal preference:
are lighter than glass lenses, but it is easy to be
offer superior optics and the best scratch-resistance.
However glass lenses are easy to be broken, so it is not
lenses are one of the high index lenses and have low
specific gravity, so they are thinner and lighter. They
provide good safety for eyewear because they are high impact
have the feature of high impact resistant, lightweight
and thin just like polycarbonate.
options can I add to the lenses of my glasses?
You can choose the following options of
lenses base on your preference, life style and occupation needs:
Scratch-resistance coating: Recommended to protect
lenses from everyday wear-and-tear.
coating: The sun’s UV rays pose potential hard to your
eyes. UV protection on lenses accomplishes the same thing as
sunscreen lotion on your skin-it shields your eyes from
harmful UV rays.
(AR) coating: AR coating provides maximum reduction of
reflections, your lenses appear crystal clear and
practically invisible, the wearer’s eyes are clearly vision
behind the lenses, so AR lenses are cosmetically desirable.
Also AR lenses help reduce eye fatigue in all situations,
particularly while viewing computer screens and driving at
night. AR lenses enhance vision by removing distracting
Lenses: Sometimes called “comfort” lenses, photochromic
lenses darken and lighten according to light exposure. If
the wearer is in the sun, photochromics darken, if indoors,
the lenses are light. Photochromic lenses are available in
virtually all lens materials and lens designs.
4. What is LASIK?
(Laser-Assisted-In-Situ Keratomileusis) is currently the most
common type of laser vision correction procedure. It is an
effective outpatient procedure that is suitable for low,
moderate, and higher prescriptions. Although no medical
procedure is perfect, the excimer laser allows for an
unparalleled degree of precision and predictability. Each pulse
of the laser can remove 39-millionths of an inch of tissue in
12-billionths of a second. This enables an experienced surgeon
to achieve remarkable accuracy while maintaining excellent
control throughout the procedure. However, the LASIK procedure
requires a great deal of technical skill and training to perform
properly, so choosing the proper surgeon is critical. The TLC
network of surgeons has performed more than twice as many laser
vision correction procedures than any other doctor network. So,
regardless of what TLC center you choose, you will receive
thorough care and have access to experienced, highly trained
5. Am I a good candidate for LASIK
and what procedure do I need?
The best way for you to
determine this is with a thorough exam from your eye doctor.
Appropriate candidates must be at least 18 years old, in good
general health, and have good eye health with no diseases such
as cataracts or glaucoma. Laser vision correction can treat a
very broad range of nearsightedness, farsightedness and
astigmatism. Through an initial consultation with your eye
doctor, your doctor will confirm if you are a good candidate,
explain the procedure, and answer your questions so that you can
make an informed decision. He or she will explain what results
you can reasonably expect by measuring your prescription and
thoroughly examining your eyes.
What procedure you need
is depending on many factors of your eyes (your prescription,
thickness of your cornea, your age and so on). Your eye care
professional is the best person to tell you.
6. What is the risk of Laser
There are risks with the
laser vision correction procedure. However, the chance of having
a vision reducing complication has been documented in a number
of clinical studies to be minimal. Remember, millions of people
have had excellent results from laser vision correction.
complications include conditions such as dryness, complications
in making the surgical flap, night glare, under or
over-correction, and loss of best-corrected vision. At TLC Laser
Eye Centers, these and other risks of the surgery are discussed
fully with the patient prior to the procedure. Proper
preoperative screening ensures that we proceed with the
procedure only when it is medically advisable. As well, diligent
post-operative care helps to identify and address any potential
healing complications. Perhaps the best way to help prevent
LASIK complications is to choose a surgeon who is experienced
and respected in the community. This is one of the advantages of
choosing TLC. TLC is careful to join only with respected and
knowledgeable eye care professionals who value patient care
above all things.
are floaters? How to deal with floaters?
Floaters are usually
small, semi-transparent cloudy specks or particles that can
appear as threadlike strands or cobwebs in various shapes and
sizes within the vitreous. The vitreous is a clear, jelly-like
fluid in the eye. While these objects appear to be in front of
the eye, they are actually located within the eye and are
noticed only when they cast a shadow on the retinal. The retina
is the nerve layer at the back of the eye that senses light and
allows the ability to see. The floaters will move as your eyes
move and seem to dart away when you try to look at them
directly. They can be often be seen when looking at a plain
background, like a blank wall or blue sky
Floaters are often caused
by small flecks or protein or other matter trapped during the
formation of your eyes before birth. They can also result from
deterioration of the vitreous fluid, due to aging; or from
certain eye diseases or injuries. The vitreous can pull away
from the back wall of the eye causing a posterior vitreous
detachment leading to noticeable floater/s. Sometimes flashes or
streaks of light may appear when the retinal is stimulated by
this pulling action. These flashes are usually located in the
peripheral vision and are very short in duration-last seconds.
Floaters are usually not
harmful and rarely limit vision but can be an early indication
of more serious eye problems. Occasionally, the retina can tear
when the vitreous pulls away from the back wall of the eye. A
torn retina is at risk for retinal detachment which can cause
significant vision loss. An indication of torn retina or
detachment is recurrent flashes. A dilated fundus examination is
needed to evaluate if the floaters and/or flashes are harmful.
Floaters can occasionally
get in the way of vision and be annoying. Since most cases are
benign, these are no good surgical or medicinal options to
remove them. With time, most floaters will fade as you adapt to
them becoming less bothersome. However, new and sometimes
persistent floaters should be evaluated.