CK and aging eyes – can I get rid of my
reading glasses ?
you unable to read the menu or prices when shopping? Have you ever had
to run back into the house from the car because you left your glasses
inside ? Are you sick of having multiple pairs of cheap reading
glasses, bought off the shelf and hanging around your neck but needed
for even the simplest near tasks?
If so, and if you had
normal vision all your life until your mid-forties when you started to
need reading glasses, then CK may be just what you are looking for.
treatment is applied with a probe thinner than a human hair that is
introduced 8 to 32 times into the cornea in a circular pattern, which
results in an increased curvature of the cornea to correct your vision.
||What is CK?
is an exciting new procedure designed to treat farsightedness and
presbyopia (the need for reading glasses) without using a laser. The CK
treatment utilizes a controlled release of radiofrequency (RF) energy
to increase the temperature of corneal tissue.
How does CK work?
human eye functions like a camera. The lens in a camera focuses light
images onto film. In the same way, the cornea and the crystalline lens
inside the eye focus light images on the retina, the back surface of
the eye. Blurred vision occurs when the light does not focus precisely
on the retina.
is specifically designed to treat hyperopia and presbyopia. Hyperopia
(farsightedness) is an eye condition where people may see objects
better in the distance than near. Presbyopia, or eyes, is a condition
which occurs in mid- to late-40’s when it becomes difficult to focus on
near objects, like menus, computers, prices when shopping and reading.
improves near vision in presbyopia and distance vision (and also often
near vision) in hyperopia by steepening the cornea and making it a
This steepening corrects the point of
focus so that light focuses properly on the retina. CK reshapes the
cornea without changing any other parts of the eye.
Am I suitable for CK?
If you are over 45, have had good vision without glasses for most of
your life and now need glasses just for reading and other near tasks
(ie your arms aren’t long enough, you have presbyopia (aging eyes)
and you may well be a good candidate for CK. In this case, only one eye (the non-dominanat eye) is treated.
you had good distance vision through your teens and twenties without
glasses, but then you needed glasses for distance and later reading,
you probably have farsightedness or hyperopia
You may also be a good candidate for CK but will probably need the
procedure in both eyes (one eye corrected for distance and the other
eye for near).
To determine whether you personally are
suitable for CK, we perform the “loose lens test” in the office. This
simple test not only determines whether you are suitable and how much
treatment you would require, but it also simulates the results of
treatment so you can see if you like the result.
What is involved in the procedure
CK procedure is performed in the office using local anesthetic drops.
These drops ensure the painless application of treatment.
will need to look directly at the light of the operating microscope
during the procedure. This light is extremely strong but quite harmless
to your eye, and an instrument will be placed between your lids to help
you keep them open. Your co-operation in fixating on the centre of the
light is of critical importance for the procedure.
the procedure, you may hear a series of beeps. These audible tones
provide Dr Collie with an indication that the appropriate energy has
been delivered to your cornea This will be repeated 8 to 32 times
depending on the amount of treatment you require
Overall, the procedure takes about 5 minutes.
Will I feel anything
CK is a considered painless procedure. However, you may be aware of some pressure and you may find the bright light disturbing.
Can I drive home?
you should arrange for a friend to drive you home from the CK procedure
and you should not drive for several days afterwards. If you have had
both eyes treated, you should not drive until you have seen Dr Collie
and your vision has been tested.
What happens after the procedure?
may be mildly sensitive to light and have the feeling that something is
in your eye for the first few days. Sunglasses may make you more
comfortable during this time. DO NOT
rub your eyes for the first 3 to 5 days.
You may also experience blurred vision with or without glasses in the first week to one month after the procedure.
During the first month after the procedure, you may notice some glare, sensitivity to light, and difficulty driving at night.
Keratoplasty is the only procedure designed for farsightedness that
uses radio frequency (RF) energy instead of a laser to correct your
vision. Approved by the FDA in 2002 after five years of successful
clinical trials in the US and abroad, CK has proven to be a safe,
effective alternative to laser surgery.
Who can have CK?
Keratoplasty is intended for people with farsightedness (hyperopia) and
Presbyopia. CK is not intended for people with nearsightedness
(myopia). All patients considering vision correction should undergo a
complete eye examination prior to the procedure.
Candidates for CK must meet the following criteria:
Be 40 years of age or older
Have hyperopia between +0.75 to +3.00 diopters
Not have had any significant changes in vision for one year
How does CK work?
uses a pen-shaped instrument with a cool tip as thin as a human hair.
After application of a topical anesthetic (eye drops), we will apply
radio frequency (RF) energy in a circular pattern. This pattern is
along the periphery of the cornea and minimizes interference with your
line of sight. The procedure is done in our office. You’re here about
one hour on treatment day. The CK procedure itself takes approximately
Near Vision Improvement
||CK is considered painless.
Once finished, you don’t have to wear a patch and can usually
return to work within 48 hours.
Vision continues to improve
during the first month.
of our patients have good distance vision and want to improve their
near vision. As a result, they only require CK in one eye. While this
sounds odd, it is a technique used widely with contact lenses and Lasik
for patients over age 40. The advantage with CK is that the improvement
in near vision comes with very little change in distance vision in the
treated eye. It is similar to the sound you hear from stereo speakers.
A different sound comes from each one, but they work together to
provide the entire range of sound. That is what you want to happen with
your vision – to see a more complete range of distance and near again.
Our goal in offering CK is to restore functional near vision for those
who are over 40.
Distance Vision Improvement
of our patients require CK in both eyes. They have become more far
sighted with age, and benefit from having treatment in one eye to
sharpen their distance vision, and treatment in the other eye to
sharpen their near vision.
Are the results immediate?
patients notice an improvement in their vision almost immediately, in
some it takes several days or longer for the improvement to be evident.
Improvement in vision can be expected for the first three months after
Will my vision fluctuate after CK?
patients experience small changes in their vision. These changes may
occur up to 3 months or more after the procedure. These changes may
occur for several months after the procedure. Your vision with and without glasses should become stable within the first few months after the procedure.
When can I return to work?
patients return to work the day after CK. If both eyes have been
treated, you may need several days off work. If you perform highly
intense visual tasks, you may find your work more difficult to perform
for the first week or so.
Are there any scientific trials on CK?
The FDA in the United States requires very stringent trials to be
performed before it approves medical products or procedures. As a
result of extensive trials in the US, CK
has been approved by the FDA to treat both presbyopia and hyperopia and
has been described as one of the safest of all refractive surgical
What results can I expect from CK?
CK, the vast majority of patients enjoy good vision without corrective
lenses for most of life’s daily activities. However, it is important to
have realistic expectations and glasses may still be needed for fine
print or very detailed work.
As with any refractive procedure, CK does not guarantee perfect
results. Your vision may not be perfect and you may still need to wear
glasses or contact lenses in some circumstances.
Will I ever need contacts or glasses again?
most patients CK “turns back the clock” so that glasses are not needed
for most activities. However, the eye continues to “age” and while the
effect of CK does not wear off, additional vision correction may be
required as the process continues. The benefit obtained from CK is not
lost but further treatment may be needed.
Is CK reversible?
is not reversible. However, in the unlikely event that CK does not work
for you, at least your vision will still be able to be corrected with
glasses or contact lenses.
Are there any risks or side effects of CK?
is a refractive procedure and as such, carries potential risks.
However, CK has been described as one of the safest of all refractive
procedures. It is possible, but unlikely, that CK might not work for
you. In this situation, you may need to wear glasses or contacts to
achieve your best vision, but unlike other refractive procedures, the
possibility of actually losing “best corrected” vision is remote.
During the first week after the procedure you may experience pain,
discomfort, blurry vision, tearing, and/or light sensitivity as the
After the procedure some patients may experience fluctuation in their vision throughout the day.
You may be nearsighted for the first few months after CK. This is mild
and temporary, but you may require glasses for tasks such as driving.
Some patients also experience an increase in astigmatism, which may
affect their vision.
What does CK cost?
cost of CK is $1850 per eye. For patients with normal distance vision
who wish to reduce their dependence on reading glasses for near, only
one eye has CK treatment. If patients are long-sighted and need glasses
for both distance and near, both eyes may need to be treated.
The fee also includes post-treatment care for 3 months, and any enhancements needed in that time.
If any enhancement is needed between 3 months and 1 year, this will be performed at a cost of $200.
To determine if you are suitable, see if you fit the profile below:
I am over 45
I have had good distance vision without glasses for most or all of my life
I have trouble with near vision without glasses
My eyes are otherwise healthy
If you answered YES to these statements, you may well be suitable for
CK. We can determine this with a “Loose Lens” test, which also
simulates for you the likely result of CK. This assessment is free.
If we find you are suitable and you would like to proceed with CK, we
will take further measurements and make a time for you to see Dr Collie
to assess and discuss your own case with you. We will provide you with
an “Informed Consent” document for you to read and sign, and will of
course happily provide you with any further information you require.
Canterbury Eye Specialists
208 Canterbury Rd
Tel: +613 9836 3677
Fax: +613 9830 0288