What To Expect When Being Fit with Ortho-K Lenses


Congratulations! Dr. Pearl has approved you for Ortho-K contact lenses. You’re ready to launch the process known as orthokeratology, or Ortho-k for short.

What’s it like to wear these special lenses? Do they feel different from regular contacts? How long does it take to see improvement? Although every situation is unique, let’s explore the basic information, so you know what to expect.


At your first eye exam, Dr. Pearl will check your eyes thoroughly to see if current vision issues make you a good Ortho-K candidate. The best candidates are nearsighted, with or without a low level of astigmatism. In addition to conducting a regular eye exam, Dr. Pearl will use a computer-imaging tool called a Topographer to map the shape of your cornea (front of the eye).

You’ll be fitted for each Ortho-K lens so it properly rests on your cornea based on its curvature, diameter and height. Paragon CRT lenses are gas-permeable, or hard contact lenses. Once you’re fitted, Dr. Pearl's office will order them for you to pick up the following week.



Taking care of your new lenses is a lot like caring for soft contact lenses. Gas-permeable lenses go in just like soft contact lenses: you hold your lids open, gently placing them on your eye’s surface. The only difference is that you’ll need a few lubricating drops before placing the lenses on your eyes.

Right before bedtime, clean each lens as instructed by Dr. Pearl, and check it for chips and scratches. Insert the lubricating drops, and then rest a lens on each eye. This video explains the process.

When you go to bed, it may feel unusual to have lenses in your eyes. Don’t worry — within a few days, you’ll be used to the sensation.


Removing gas-permeable lenses is a little different from removing soft contact lenses. Because they’re not pliable, you will use a special remover supplied by Dr. Pearl. It’s easy and painless. When you wake up, you’ll add more lubricating drops in your eyes and wait 10 minutes before removing your lenses. This video explains the process.

Because you’ll have an appointment with Dr. Pearl the first morning after wearing your lenses, his staff can help if you have trouble with the remover. During your appointment, Dr. Pearl will assess how the lenses worked the first night. For the second night, you may receive different lenses depending on the changes in your cornea.

You’ll continue using the lenses for seven to 14 days. Then, you’ll have an additional follow-up appointment with Dr. Pearl.


Patients notice different things the first morning after wearing their lenses, and many often read the doctor’s eye chart noticeably better than they did before. At first, the clearer vision may not last throughout the day. You can either carry your glasses or use daily disposable soft contact lenses until you reach improvement that lasts all day.

With continued overnight use, your vision should become more focused, and the clarity will last longer as your cornea shape changes. As the days pass, your old glasses or contact lens prescription will become too strong. Avoid wearing them; Dr. Pearl will provide a plan for gradually reducing your prescription as you progress.

Make sure to wear your Ortho-k lenses every night during the early stages of your treatment. Also, follow your Dr. Pearl’s instructions to get the best results. Within one to two weeks, most patients can go the entire day without glasses or contact lenses.

If your eyes feel a little dry after lens removal, add some rewetting drops before starting your day. The good news is that without daily contact lenses, you should experience fewer dry eye symptoms during the day. When you wear your lenses at night, your eyes remain closed, which seals in moisture against the surface of your eyes.


If you decide to stop wearing your CRT lenses, your cornea will gradually revert to its original shape. This change means you’ll need a stronger prescription once again, so you’ll need to schedule an eye exam. Discuss your preference for glasses, contact lenses, or other treatments with your Dr. Pearl.

Contact Us

We look forward to hearing from you.


Find us on the map

Featured Articles

Read Up On Informative Topics

  • Healthy Vision Month

    Get ready for Healthy Vision Month by upgrading your vision habits. ...

    Read More
  • Presbyopia eye drops

    Would you like to stop squinting when you look at close objects? A new kind of eyedrops can improve presbyopia, an age-related vision problem. ...

    Read More
  • Dry Eye

    Sometimes your eyes don’t make enough tears or the tears evaporate too fast because they don’t have the right amount of compounds in them. This is called dry eye. Up to 5% of Americans complain of some form of dry eye. Individuals who wear contact lenses or have undergone LASIK or other types of ...

    Read More
  • Subconjunctival Hemorrhage

    Similar to a bruise under the skin, a subconjunctival hemorrhage happens when a small blood vessel located between the sclera (white portion of an eye) and the conjunctiva (lining on the surface of an eye) breaks and covers the sclera with blood. Unlike broken blood vessels located under the skin which ...

    Read More
  • Decorative (Plano) Contact Lenses

    Colored contact lenses allow you to temporarily change your eye color whether or not you need to correct impaired vision. In this way, you can create a more subtle eye appearance, wear a crazy design for special occasions, or just enjoy a new eye color. Will Colored Contacts Change the Way I See? Yes, ...

    Read More
  • Wandering Eye

    A wandering eye is a type of eye condition known as strabismus or tropia, and it may be caused by damage to the retina or muscles that control the eye, stroke or brain injury, or an uncorrected refractive error like farsightedness. With a wandering eye, one eye deviates or wanders in a different direction ...

    Read More
  • Reading and Writing

    For many adults, reading and writing come so naturally that they seem almost effortless. However, reading and writing are actually complicated skills that take significant effort to learn. For example, reading involves recognizing letters, associating letter combinations with their corresponding sounds, ...

    Read More
  • Lazy Eye

    Lazy eye, also referred to as amblyopia, is a condition that develops in infancy or early childhood, and it typically starts when the focus in one eye is more enhanced than the other. The eye with less focus might be impaired due to a significant amount of farsightedness or astigmatism, or something ...

    Read More
  • Dyslexia

    Dyslexia When a child has difficulty reading due to problems recognizing speech sounds and learning how they connect to words and letters, the condition is known as dyslexia, a learning disorder caused by genetic traits that disturb how the brain works. It affects areas of the brain dealing with language ...

    Read More
  • Crossed Eyes

    Crossed eyes, also known as strabismus, refer to a condition in which both eyes do not look at the same place at the same time. Often times they both turn in, but may also turn out. What Causes Crossed Eyes? The six muscles attached to each eye, which control how it moves, receive signals from the brain. ...

    Read More