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Frequently Asked Questions
What is Orthokeratology (Ortho-K)
Ortho-K is the use of therapeutic corneal molds or lenses to gently reshape the curvature of the
cornea (front part of the eye) to reduce nearsightedness, farsightedness and astigmatism.
How does Ortho-K work?
Orthokeratology or Ortho-K is accomplished through the use of specially designed corneal molds
or lenses. These molds are worn while you sleep, and cause the migration of corneal cells to the
peripheral cornea, thereby allowing you to see clearly throughout the day. Watch this demo from
the Ortho-K NETwork to see exactly how it works.
What is involved with Orthokeratology?
Each patient is required to have a comprehensive eye health examination. If your prescription
falls within a certain range, further testing will be done. An extensive computerized corneal
mapping (Corneal Topography) will help determine if you are a good candidate for this procedure.
We will then design customized molding contact lenses using a CAD/CAM (Computer Assisted
Design/ Computer Assisted Manufacturing) process and then a CNC lathe produces the lenses
within 0.1 micron accuracy. These molding lenses will be dispensed to you and you are trained in
lens handling and care. The lenses are worn only while you sleep. Each night these lenses will
gradually flatten your cornea, thereby improving your vision. Typically within a week you will have
clear vision that lasts all your waking hours.
Is Orthokeratology an alternative to refractive surgery?
Yes- Ortho-K is a non-surgical alternative to surgery. Individuals interested in reducing their
nearsightedness and astigmatism, but are apprehensive about surgery, now have a safe and
effective alternative. We often receive referrals from area refractive surgeons asking us to assist
them with patients that are not good surgery candidates, but might benefit from Ortho-K.
Is Orthokeratology new?
No- the concept and process of corneal molding has been available since 1962. What is new is
the Ortho-K design and computerized corneal mapping. Ortho-K contact lenses customized to the
patient's unique corneal shape using a CAD/CAM (Computer Assisted Design/ Computer Assisted
Manufacturing) process and then CNC lathe production with 0.1 micron accuracy is new. Dr. Lisa
Davis has been monitoring the development of these advancements and has completed extensive
training to ensure our patients' success.
Is Orthokeratology permanent?
No, unlike refractive surgery, Ortho-K is reversible simply by not wearing your molding contact
lenses. Within 1 to 7 days your vision will return to its pretreatment state.
I suffer from “dry”eyes, could I benefit from Ortho-K?
Yes. Many patients with slightly dry eyes do well with Ortho-K. Since you are wearing the lenses
only while sleeping, the closed eye state minimizes evaporation loss of tears and can give dry-eye
patients improved vision without compromising the ocular surface. Many dry eye patients are
more comfortable during their waking hours with Ortho-K versus soft or gas permeable contact
lenses. Only your eye care professional can determine if you are an Ortho-K candidate.
I used to wear contact lenses but stopped because of discomfort. Am I a
candidate for Orthokeratology?
Ortho-K lenses are worn at night while you are sleeping. This greatly reduces any discomfort
normally experienced while wearing contact lenses during the day.
Can I see with my Ortho-K lenses in?
Yes. One of the great features of the Ortho-K lens is that if you get up in the middle of the night,
you will be able to see perfectly. You will enjoy great vision with your Ortho-K lenses on or off.
What do I wear during the adaptation period?
Your doctor will either have you wear your glasses or give you other diagnostic lenses to wear
while your eyes are adapting to your new vision with the Ortho-K lenses. This is usually a short
term situation of a week or so.
Is there any scarring with Ortho-K?
No- this process is a non-surgical vision correction.
Is there any scarring with refractive surgery?
Almost all refractive surgeries cause some minimal corneal scarring.
How often do I have to wear the retainer (molding) contact lenses following
This varies with each individual. Some patients have to wear the lens each night while others
only need to wear the lens every other night.
Will medical insurance cover Orthokeratology or refractive surgery?
No - even though Ortho-K improves your visual function, the insurance carrier defines all
refractive surgeries and Ortho-K as cosmetic procedures.
Does Ortho-K help stop my child’s eyes from getting worse?
Rigid gas permeable lenses, the same used with Ortho-K, have been shown to slow the rate of
progression of near-sightedness when compared to children wearing eyeglasses. More studies
are needed to confirm this and the exact mechanism, but in our opinion children with rapidly
progressing nearsightedness should wear these lenses in an attempt to reduce myopia
To learn more about how Ortho-k slows nearsightedness in children, please read the attached
How old do I have to be to qualify for Ortho-K?
This procedure is beneficial to any nearsighted or astigmatic patient within certain criteria. Age is
not a restriction with Ortho-K, whereas in refractive surgery a patient must be at least 18 years of
age. Our youngest patient using Ortho-K is 7 years old and our eldest is 67.
What are the fees for Orthokeratology and what does it include?
The Ortho-K program includes corneal evaluation for 6 months, computer mapping of the corneas,
the doctor's time and expertise to customize a pair of Ortho-K lenses, lens insertion and removal
training, initial cleaning solutions and one pair of Ortho-K lenses. Ask our doctor or staff for a
range of applicable fees. "CareCredit" offers an easy payment plan that can reduce your monthly
payments to between $30 to $70 per month. Ask for details on financing.