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How do I know if I need bifocals?
The most common use of bifocals is for the treatment of presbyopia
in individual's aged 40 and over. Whether or not a person has needed
vision correction when younger, by the early to mid-forties, the
ability to accommodate or focus the eyes has diminished. Bifocals
allow the wearer to see clearly both at distance and near despite
the reduced focusing ability. Bifocals may also be used to help
align the eyes if a person tends to over-cross his or her eyes at
near. If you are over 40 or have any difficulty performing tasks
at near, ask your optometrist whether bifocals, or no-line progressive
addition lenses, could be right for you.
• Why is it that even if
you wear glasses or contacts, when you get below the water's surface
(wearing goggles) you can see almost normal?
Because of the higher refractive index of water, light travels more
slowly and is bent more in water than in air. The effect is that
nearsighted persons wearing goggles underwater can see more clearly
than in air.
• Are glass
lenses with a greater "base curve" likely to give
sharper vision when I look through my glasses near the edges?
There are a number of factors, which reduce the sharpness
of vision of glass or plastic spectacle lenses. There are
five specific problems, known as aberrations, which can
be present with any wavelength or color of light. The base
curves of lenses are chosen to reduce the two most important
of these aberrations-oblique astigmatism and curvature of
field. Changing the base curve of the lenses, either steeper
or flatter, away from the ideal curve (or "corrected
curve") will increase these aberrations. In order to
make lenses thinner, a flatter base curve is sometimes selected,
but an aspheric surface is used to control the aberrations.
• How can I tell if my child needs glasses?
Many children who need vision correction will have signs
or symptoms that a parent or teacher may notice. However,
there are many cases where there will be no signs or symptoms.
The only way these cases will be uncovered is by a comprehensive
eye and vision examination by an optometrist. The AOA recommends
a complete examination of children at age 6 months, 3 years,
before starting school and every 2 years thereafter.
• Are progressive (no-line) lenses difficult
to get used to?
Becoming accustomed to any new lens design can take some
time. It is a very individual experience due to differing
habits and lifestyles. Discuss your concerns with our certified
opticians. They will guide you through your options and
let you know what to expect both before and after you get
your new glasses.
• Can scratches be buffed out of plastic lenses?
Even as advanced as today's technology is, there is no way
to resurface a scratched lens without damaging the quality
and safety of the prescription.
• What are polarized sun lenses?
On a daily basis we encounter glare from light bouncing
off of flat surfaces like water, snow or pavement. This
glare interferes with our vision and fatigues our eyes.
Polarized lenses provide glare free vision which is critical
for driving, fishing, golfing, boating and skiing.
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is a contact lens?
A contact lens is a very thin piece of sterile, specially formed
material which is placed on the eye as a method of correcting vision.
It actually contacts the eye, and so it's called a contact lens.
When the contact lens is placed on the eye, it changes the way that
light is focused in your eye, and this change in focus corrects
your vision.
The material which is used in the contact lens is carefully produced
to allow as much oxygen as possible to get to the surface of your
eye, as well as to be as comfortable and safe as possible.
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• Do I have to get an eye exam
first? What if I already have a prescription?
We make things easy for you at GO - Optics. Sure you can bring
your own prescription; you don't need to see one of the independent
Doctors of Optometry in order to get great-looking frames.
But remember, at GO - Optics, an exam for eyeglasses free. So,
why not get an eye exam, just to make sure that your vision hasn't
changed?
You can bring in your own frames and purchase new lenses. If you
have a moderate to strong prescription and are wearing standard
plastic lenses, you'll love the comfort of Polycarbonate or High
Index Verilite™ Lenses - 30% thinner and lighter than ordinary
plastic lenses. Do you work in bright surroundings? Let us put
a tint or an antireflective coating on your lenses, for reduced
eyestrain and squinting.
Call or stop in -- one of our Opticians will be happy to explain
all the services we have to offer.
• Should I get contact lenses?
Many people who currently wear glasses can wear contact lenses.
When you come in for your appointment, one of the independent
Doctors of Optometry can help you decide whether contact lenses
are right for you.
Contact lenses have several advantages over eyeglasses. Here are
some of them:
• Contacts allow some people to see more clearly than with
eyeglasses, because more of your field of vision is corrected.
• Contacts are not visible to others, and do not interfere
with your appearance.
• Contacts can be more convenient than eyeglasses because
they are always "on you".
However, contact lenses take more time and require more responsibility.
For example:
• Contact lenses do need to be carefully cleaned and maintained
according to your Doctor's and lens manufacturer's instructions.
Contact lenses have a maximum wearing life, and need to be replaced
regularly
• Can contact lenses hurt my eyes?
What's more important than your eyes? At GO - Optics, the health
of your eyes is our number one priority. We will work closely
with you to ensure your good eye health and vision.
You, too, have to remember how important your eyes are, and have
to follow the wearing, cleaning, and replacement plan of your
contact lenses carefully. Properly used and cared for contact
lenses are safe for your eyes. Contact lenses are made of special
materials which are very gentle to the surface of the eye.
Not following your maintenance plan, such as wearing your contact
lenses for too long, not washing your hands before cleaning them,
and/or cleaning them improperly can result in eye irritation or
infection.
• How do I clean my glasses?
Warm water and lens cleaner are the best to clean lenses and frames.
Lenses should be dried with a soft CLOTH rather than any paper
product.
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