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Home » Eye Care Services » Orthokeratology

Orthokeratology

The GP lenses for ortho-k are used at bedtime and worn overnight. While you sleep, the lenses gently reshape the cornea to correct your vision, so you can see clearly without glasses or contact lenses when you’re awake.

See here for more about the wonderous effects of Ortho-k.

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Am I a Candidate for Orthokeratology?

People of any age who have low to moderate amounts of myopia, hyperopia or astigmatism are good candidates. Most doctors are comfortable treating myopia of -6.00 diopters prescription or less but some are treating much higher prescriptions. Ortho-K initially was best suited for myopia, but many doctors are now treating hyperopia (farsightedness) and astigmatism (mix of both myopia and hyperopia).

Goals

Here’s what we will assure to the best of our ability:
– Clear sight without glasses or contact lenses through a majority of the day
– Slow or stop the progression of myopia (near-sightedness)
– Safety

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What is Orthokeratology?

Orthokeratology is a simple and non-surgical process which reshapes the cornea using specially customized contact lenses to reduce refractive errors of nearsightedness (myopia), farsightedness (hyperopia) and astigmatism.

It can also be called Ortho-K, Corneal Reshaping (CR), Corneal Reshaping Therapy (CRT), Vision Shaping Treatment (VST), and Gentle Vision Shaping System (GVSS).

How does it work?

We use rigid oxygen permeable contact lenses, like retainers, to gently and temporarily reshape the cornea (front clear part of the eye) while you sleep. This allows images or objects we are viewing to be focused from the front to the back of the eye more clearly.

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How long does it last?

The contact lens is worn overnight for about eight hours and after removing the lenses, the effect will last all day. Sometimes it will last two or three days depending on the amount of prescription.

Ortho-K is not permanent and because so, it is reversible.

Why do people get Ortho-K?

There are many great reasons to get Ortho-K:

  • Slowing or stopping the progression or myopia
  • Other contact lenses aren’t comfortable anymore
  • Allergies
  • Dry Eyes
  • Too low of prescription and cannot have refractive surgery (LASIK or PRK)
  • Refractive surgery is too expensive
  • Outdoor enthusiasts
  • Swimmers
  • Active in sports or physical activities
  • Dusty/windy work environments
  • “My contacts really bother me!”
  • “I don’t want to wear my contacts anymore!”

How does Ortho-K slow or stop the progression of myopia?

Myopia control is used to slow or stop the increase in axial length of the eye that occurs in children who are becoming more nearsighted each year. This may result in lower prescription so the child won’t have to wear the thick lenses he/she might otherwise require by the time they are a teenager. Out of all the options being studied right now, this is currently the best for keeping our eyes from getting worse.

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Please ask Dr. Hofeldt if you are interested or have any more questions about Orthokeratology. For more information, you can also visit www.kenteyeclinic.com under ‘Eye Care Services’.

  • Orthokeratology or overnight contact lenses are available at Kent Eye Clinic. Experience amazing clarity without wearing glasses or contacts during the day!
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253-204-3504