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What is the Crystalens? |
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What makes the Crystalens different from other intraocular lenses?
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Can my vision be corrected to 20/20, for both reading & distance? |
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What about my middle vision, like working on the computer. Will
it be like wearing trifocals? |
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Will I be able to read in all light conditions? |
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How do I know if I am a good candidate for Crystalens implantation? |
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Should I have the Crystalens implant put in both eyes? |
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How long with the surgery take? Will I feel anything? |
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What are the chances that something could go wrong with the surgery?
What would they be? |
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What will my vision be like after surgery? |
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What about glare, problems driving at night and sensitivity to light?
Can implant surgery create these problems? |
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When will I be able to return to normal activities after Crystalens
refractive implantation? |
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How often do I need to have my eyes checked after surgery? |
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Can I go to any eye doctor for check-ups after the surgery? |
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Will I have to have cataract surgery again? |
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What happens if my eye is injured sometime in the future? |
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What about future eye surgery? |
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I have rosacea on my face, do I need to do anything or take anything
before the surgery? Do I run a higher risk of infection after surgery? |
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I have dry eyes. Will lens implantation help this condition or will
I still have to use artificial tears? |
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Will the Crystalens implant influence chronic red & irritated eyes
or headaches from eyestrain? |
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Will security eye scanning still work after Crystalens implantation? |
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Cost? Will insurance cover any of it? |
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How do I know who is a qualified Crystalens implant surgeon? |
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Q: |
What is the Crystalens? |
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A: |
The Crystalens is the first-ever revolutionary lens implant technology that mimics the eye’s natural ability to focus on distant, middle and near objects. Used in conjunction with standard cataract extraction methods, the Crystalens can restore a broader range of functional vision.
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Q: |
What makes the Crystalens different from other intraocular lenses?
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The
Crystalens has the unique ability to focus on objects at varying
distances using the eye’s natural muscle. This means that the Crystalens can provide sharper vision, without corrective lenses, throughout a broader range of vision.
Standard (single vision) lens implants provide a fixed focal length of vision, primarily for seeing far. Patients who have single vision lens implants typically wear glasses for middle and near vision.
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Q: |
Can my vision be corrected to 20/20, for both reading & distance? |
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A: |
The Crystalens has been designed to focus your eyes at all distances after cataract surgery. While virtually everyone will experience a significant improvement in their uncorrected vision after surgery, patients do not see 20/20 at all distances.
It
is interesting to note that many people who have not had surgery,
are not able to see 20/20 at both near and far even with glasses
or contact lenses. This is due to a variety of ocular and physiological
problems as well as lifestyle preferences, yet most of these people
function quite normally although their vision is reduced.
The
Crystalens FDA two-year clinical study results indicate that 92%
of the people enrolled in the study (implanted bilaterally) could
see 20/25 or better at distance, 96% could see 20/20 at arm’s length
and 73% could see 20/25 at near without glasses or contact lenses.
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What about my middle vision, like working on the computer. Will
it be like wearing trifocals? |
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Your
ability to see at approximately arm’s length (middle vision) will be greatly enhanced with the Crystalens.
In addition, the quality of vision compared to wearing trifocals is significantly improved. You will have a full range of vision, without having to tilt your head to find that portion of your glasses that allows you to see clearly.
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Will I be able to read in all light conditions? |
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The
Crystalens functions very much like the normal human lens. It is
important to remember that reading vision in low light is also influenced
by the overall health of your eye and by the condition of the light
sensors in the retina. As we get older our ability to see in low
light conditions may start to decrease. It is always best to read
in good light conditions.
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How do I know if I am a good candidate for Crystalens implantation? |
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You
will receive a thorough examination and advised of a customized
treatment plan for effectively correcting your vision.
Virtually
everyone with good general health is a candidate for implant surgery,
but people with chronic infections, uncontrolled diabetes, or other
health problems may have to wait until these conditions are under
control prior to surgery.
People
who have had prior corneal refractive surgery are acceptable candidates
for Crystalens implantation as long as their eye is in good health.
If
you have already had cataract surgery, you are not a candidate for
the Crystalens procedure.
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Q: |
Should I have the Crystalens implant put in both eyes? |
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A: |
Typically
cataracts will develop in both eyes. If only one eye has a cataract,
only one implant is necessary. If both eyes have cataracts and the
vision in one eye is worse, typically your surgeon will elect to
implant that eye first. If both eyes are the same, your surgeon
usually starts with the ‘non-dominant’ eye.
Your
doctor will look at a number of factors in deciding which eye to
implant first and when, if necessary, to implant the other eye.
Your surgeon may wait one to three weeks between surgeries, but
this will vary based on how well the first eye is healing and the
visual outcome.
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How long will the surgery take? Will I feel anything? |
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The
Crystalens procedure is performed in our outpatient surgical center.
You will arrive at the surgery center about an hour before the procedure.
A number of topical drops will be placed in your eye and oral medications
may be administered to help you relax. The eye drops anesthetize
your eye and dilate your pupil.
Once
in the surgery suite, you will lie down on a comfortable bed, a
microscope will be positioned over your eye and you will be asked
to look up into the light of the microscope.
The actual surgery usually takes less than 20 minutes. Your eye will be stabilize with a device to keep your eyelids open. Patients report that they feel no pain, only slight pressure on their eye. All you have to do is to relax and hold still.
Once
the surgery is complete, additional drops will be placed in your
eye to prevent infection, decrease inflammation, and keep your pupil
dilated. A patch may be placed over your eye and someone will need
to drive you home. Once at home, you should rest for the remainder
of the day. You should avoid any strenuous activities. Your doctor
will want to see you the day after surgery to remove the eye patch
and examine your eye. Do not rub your eye.
You
will be given additional medications that you will need to put in
your eye for the next week or two. These drugs help the eye heal
leaving no residual effects.
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What are the chances that something could go wrong with the surgery?
What would they be? |
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A: |
The
contemporary treatment for cataracts is to remove the crystalline
lens and replace it with an artificial lens. The Crystalens represents
the state-of-the-art in artificial lens design and is the result
of over 50 years’ evolution in the treatment of cataracts.
The
medical procedure to implant the Crystalens is the same safe, proven
cataract surgery performed annually on over 7 million eyes globally.
Over 40 million procedures have been done in the last 25 years.
But because it is surgery, it is not completely risk-free.
Complications
of cataract surgery range from minor, usually temporary side effects,
to sight-threatening complications. Fortunately, significant sight-threatening
complications are extremely rare, and include, but are not limited
to infection, hemorrhage, and retinal detachment. People with existing
medical conditions such as diabetes, high blood pressure, chronic
inflammatory conditions and chronic infections are at a higher risk
of developing complications. Current data indicate that 98% of people
have no complications after cataract surgery and more than 95% have
improved vision.
You
will receive a thorough examination and be informed if you might
have any increased risk of a complication.
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What will my vision be like after surgery? |
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Your
distance vision will usually be very good within a day or two after
surgery. However, your middle and near vision may be somewhat blurred
at first.
Drops
will be applied to your eye after surgery, preventing the eye from
changing focus from far to near. These drops dilate your pupil making
you sensitive to light until the drops wear off. This is done to
ensure that the Crystalens is correctly positioned in your eye as
it heals. It will take 7 to 14 days for the effects of this drug
to wear off. You may need to wear reading glasses to help you read
during this time.
After
about 2 weeks, you will notice that your middle (arm’s length) vision
is improving and your near vision is also starting to get better.
It is important that you discontinue the use of the reading glasses
at this time so that you strengthen the focusing muscle of your
eyes.
It may take several months for your eyes to reach their full focusing potential. You may notice a difference in your vision from one eye to the other after your eyes heal. This is normal. If the difference in your vision is significant we may recommend additional corneal refractive surgery. This is often done for the correction of astigmatism after implant surgery.
Everyone’s
focusing ability is different. Most people will be able to see clearly
in the distance, have excellent middle vision and will be able to
read a newspaper without glasses, but some people may be more comfortable
with additional correction, particularly at night or in dim light.
It
is important to remember that implant surgery cannot resolve pre-existing
visual conditions such as floaters, flashes, or visual field loss
that are a result of conditions of the eye and not related to the
lens.
Your
doctor will thoroughly discuss the restoration of your vision after
surgery and will recommend a specific plan for optimizing your uncorrected
vision for near and far. It is important to remember that while
virtually everyone experiences much improved vision after cataract
surgery, some people will have better uncorrected vision than others.
Since
this information isn’t intended to replace the advice of a health
care professional, be sure and talk with your doctor before making
any decisions regarding vision correction procedures.
The
long-term safety and effectiveness of this lens have not been established.
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What about glare, problems driving at night and sensitivity to light?
Can implant surgery create these problems? |
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Yes.
These symptoms can be produced or exacerbated by cataract surgery.
Many people report these problems before cataract surgery and even
after surgery; however, they are rarely debilitating.
Sensitivity
to light is often a temporary symptom. The Crystalens optic material
is so clear that in some people it takes time to get used to how
bright colors are and how intense lights can be, particularly at
night.
As
with any intraocular lens, glare can be a problem at night when
the pupil widely dilates and occasionally light can reflect off
the edge of the implant and create a flash or halo of light. This
typically does not occur in your central field of vision, but rather
in the periphery. People who have worn contact lenses in the past
may be familiar with this phenomenon.
Again,
glare is rarely debilitating and if it does bother you, there are
a number of things that can be done to improve your vision at night
including medications or night driving glasses.
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Q: |
When will I be able to return to normal activities after Crystalens
refractive implantation? |
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Typically
you will be able to return to normal activities within several days
after implantation with some limitations. Your eye may be sensitive
to touch and bright light, but you should be able to drive and return
to work in two to three days.
Your doctor will provide you with medications to prevent infection
and decrease inflammation, and may provide a protective shield to
cover your eye while sleeping. A pair of plastic, disposable sunglasses
will decrease your sensitivity to light as well as providing protection
during the day.
It
is important that you avoid heavy lifting or straining that would
increase the pressure in your eye for several days after surgery.
You also must avoid rubbing or pushing on your eye. You should refrain
from activities that could increase your chances of getting hit
in the eye. Wear your protective sunglasses when outdoors.
You
can shower and wash your hair as long as you avoid getting soap
or shampoo in your eye. Refrain from using eye makeup, lid liner
and mascara for several weeks after implantation. You should avoid
public swimming pools, hot tubs or other sources of bacterial contamination
for several weeks.
Consult
your doctor on recommendations for specific activities.
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How often do I need to have my eyes checked after surgery? |
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Your
doctor will advise you as to how often your eyes need to be checked.
Typically, your doctor will see you one day after surgery, after
2 to 4 weeks, and again around 3 to 6 months. Thereafter, an annual
exam is usually sufficient unless you have a specific problem.
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Can I go to any eye doctor for check-ups after the surgery? |
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Your
surgeon will want to see you right after the surgery to ensure your
eye is healing properly. This includes the 1st post-operative visit
and usually the following visit. After that, the surgeon may allow
you to see another
qualified doctor to perform your follow-up visits.
You
should inform your surgeon if you would like a different doctor
to follow-up with you after surgery so he can consult with that
doctor to ensure a high level of care. You should immediately contact
your surgeon if you have problems or any doubts about your eyes
after surgery.
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Will I have to have cataract surgery again? |
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Once
your cataracts are removed and replaced with an artificial lens,
you will never have to have cataract surgery again. Occasionally,
several months after the lens has been placed in the eye, the vision
may start to become cloudy once again. This is sometimes called
a secondary cataract and refers to the clouding of the membrane
that surrounds the implant.
This
membrane (the capsular bag) originally surrounded the human lens.
When the cataract was removed, all that remained was this membrane
into which the artificial lens was implanted. The membrane healed
around the artificial lens, securely holding it in place in the
eye. Unfortunately, sometimes the same conditions that caused the
original cataract will cause the build up of cells on the membrane
behind the implant. These cells will block the vision and have to
be removed.
A
laser is used to make an opening in the membrane behind the implant,
immediately improving vision. This is done painlessly without an
anesthetic and takes just a few minutes.
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What happens if my eye is injured sometime in the future? |
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Eye
injury can involve many different parts of the eye. The clear front
part of the eye, the cornea, and the back part of the eye, the retina,
are most often affected by injury.
The
presence of an artificial lens does not make the eye any more vulnerable
to trauma.
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What about future eye surgery? |
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Advanced
implantation techniques and the biocompatibility of the Crystalens
allow the body to treat the implant as a normal part of the eye.
The artificial lens is encased in the original membrane that surrounded
the crystalline lens. This membrane, called the capsular bag, traps
and holds the Crystalens in the correct anatomical position in the
eye.
Since
the implant is fixed in the same position as the original lens,
any future eye surgery that could be performed in or around the
normal eye can be performed in an eye with the Crystalens.
Botox
treatments, plastic surgery, pterygium removal and other cosmetic
procedures should not be performed until your eye is well healed.
Typically this is around 3 months, but your doctor will advise you
when it will be safe to undergo these procedures.
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Q: |
I have rosacea on my face, do I need to do anything or take anything
before the surgery? Do I run a higher risk of infection after surgery? |
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A: |
Rosacea
is not generally considered a contraindication for eye surgery unless
symptoms are expressly related to the lids or the eye itself. Your
doctor will perform a complete examination and if symptoms such
as an infection of the eyelids, styes, eye irritation and red eyes
are present, he/she may elect to treat these conditions with medication
before surgery.
If
you have rosacea and are not currently exhibiting significant symptoms,
it is wise to inform your doctor of your condition.
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I have dry eyes. Will lens implantation help this condition or will
I still have to use artificial tears? |
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Implant
surgery typically will have very little influence on chronic dry
eyes. This condition is related to a variety of internal and external
medical conditions and is sometime associated with aging. You should
consult your doctor on a therapy that is most suited to the cause
and severity of your condition as well as your lifestyle.
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Q: |
Will the Crystalens implant influence chronic red and irritated
eyes or headaches from eyestrain? |
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If
eye irritation is a result of excessive contact lens wear, sensitivity
to cleaning and storage solutions, or what is generally described
as ‘eye strain’, implant surgery may reduce or eliminate these symptoms.
Eye irritation can be caused by a wide variety of internal and external
factors including allergies that have nothing to do with the Crystalens
implant. Consult with your doctor for proper diagnosis and treatment
of red, irritated eyes.
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Q: |
Will security eye scanning still work after Crystalens implantation? |
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Security
scanning should not be affected after Crystalens implantation. Security
scanning usually relates to iris or retinal pattern recognition.
The implant has no influence on iris scanning and should not interfere
with retinal visualization through a normal sized pupil.
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Q: |
What will the Crystalens procedure cost? Will insurance cover any
of it? |
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Since
each patient’s vision is different and unique, the cost for the
Crystalens procedure will vary.
Insurance
coverage varies greatly from policy to policy and state to state.
Generally speaking, private insurance may cover the cataract surgical
procedure and anesthesia; and may also allow a certain additional
amount for the artificial lens implant. The insured is then required
to pay their deductible as well as any additional amount above the
primary coverage. Some patients are completely responsible for the
full payment.
Your
insurance coverage will be reviewed with you and your surgical alternatives
prior to your surgery. It will also be beneficial for you to contact
your insurance carrier.
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Q: |
How do I know who is a qualified Crystalens implant surgeon? |
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All
surgeons who are implanting the Crystalens must go through an authorized,
comprehensive training and evaluation. The Crystalens procedure
applies most of the same techniques found in traditional cataract
surgery.
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