Can Children Have Corneal Refractive Therapy
At this time, the FDA has placed no age restrictions on candidates for Corneal Refractive Therapy. The therapy is being successfully performed on children 12 years old and younger and may be a good option for children and teens that are involved in sports. Visual requirements due to age or activities can only be assessed after a thorough eye exam. Your eye doctor will recommend what is best.
It Can Slow Your Childs Myopia Progression
Many parents are pleased to learn that corneal refractive therapy is FDA approved and has been clinically proven to slow a childs myopia progression in most cases. Many parents like the idea of halting or slowing down myopia, since rapidly progressing or high levels of myopia during childhood increase the risk of developing serious eye diseases in the future.
Thats right CRT can help preserve your childs gift of sight for the long term.
Who Is A Good Candidate For Orthokeratology
Most people with mild to moderate nearsightedness are good candidates for ortho-k.
Because the corneal reshaping effect is temporary, little risk is involved, and you can discontinue wearing the lenses at any time provided you are willing to start wearing glasses or contacts again when your myopia returns.
Children and young adults who want to be glasses-free but are too young for LASIK or are not good candidates for refractive surgery for other reasons often are good candidates for ortho-k.
People who participate in contact sports or work in dusty environments that can pose problems for contact lens wear can also be good candidates.
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Is Corneal Refractive Therapy The Same As Orthokeratology
Orthokeratology is defined as the reshaping of the cornea to reduce myopia through the use of rigid contact lenses. So technically, CRT is a type of orthokeratology. However, earlier corneal reshaping designs were limited by the available technology of the time. The newly developed corneal refractive therapy utilizes recent advancements in three highly technical areas: computerized corneal mapping, computerized manufacturing, and oxygen permeable contact lens materials. Each of these produce a therapeutic contact lens design that is unique. This has allowed CRT to become the first corneal reshaping modality to earn FDA approval for nighttime corneal refractive therapy.
Facts About Corneal Refractive Therapy

Millions of people wear contact lenses daily to correct myopia, hyperopia, and astigmatism. Some, however, prefer not to wear contacts during the day and are reluctant to opt for corrective eye surgery.
For those that have low myopia , one option that doesnt require wearing glasses or undergoing a more invasive procedure is Corneal Refractive Therapy . Also known as orthokeratology ortho-K for short it involves wearing special rigid gas-permeable contact lenses designed to gently reshape the cornea during the night, providing temporary clear daytime vision when lenses are removed.
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Crt Can Help You Improve Your Vision While You Sleep
Corneal refractive therapy is an exciting new non-surgical process that uses a therapeutic lens to gently reshape the cornea and temporarily correct nearsightednessall while you sleep!
Corneal refractive therapy is a technique using unique rigid gas permeable contact lenses designed to temporarily correct nearsightedness by safely, gently and reversibly reshaping your cornea at night as you sleep. Imagine the convenience of correcting your vision while you sleep with safe, CRT therapeutic lenses! Imagine waking up, working, playing and living through a full day without using any vision-correcting lenses!
Corneal refractive therapy, or Orthokeratology, is an option for people who would like to improve their vision without the aid of glasses, contact lenses, or laser vision correction.
The Paragon CRT lens by Paragon Science is the first specially designed contact lenses to earn FDA approval for night time corneal refractive therapy. It works by gently reshaping the cornea while you sleep!
Upon taking your lenses out in the morning, your natural vision is improved for most of your waking hours – freeing you from glasses and contact lenses. The Paragon CRT lens can temporarily correct low to moderate amount of nearsightedness, and may even be effective against farsightedness.
To find out how you can benefit from treatment, call now or schedule an appointment in Lees Summit or Lenexa.
What You Need To Know
Our eyes are so essential in everything that we do. Which is why we must have a basic understanding of eye anatomy and function. When we suffer from vision problems, it just makes life so difficult. The issue is that most treatments for ocular problems arent really treatments, but more like band-aids that temporarily work until you need a stronger prescription. This continues as a constant cycle that never ends. In recent years, the new procedure of corneal refractive therapy has emerged. Not only is non-surgical, its something you can do to actually correct your vision. This short guide will explain the procedure so you can see if it is right for you.
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Am I A Candidate For Corneal Refractive Therapy
The CRT lens is only intended for patients with low to moderate myopia and mild astigmatism. Schedule an appointment at Foley Vision Center to find out if you are a candidate.
If you experience any of the following conditions, you should not undergo CRT:
- Inflammation or infection of the eye
- Any eye disease, injury, or abnormality that affects the cornea or surrounding tissue
- Any systemic condition that may affect the eye or be worsened by wearing contact lenses
- Allergic reactions of the eye, which may be caused or exaggerated by wearing contact lenses or use of contact lens solutions
- Eyes that are red or irritated, or suffer severe dryness
In general, ideal candidates can be any age but must have healthy eyes. You should be dependent on glasses or contact lenses and have a desire to reduce this dependence during daytime hours.
Is Crt Right For You
Most often, Corneal Refractive Therapy is used to temporarily treat those who suffer from myopia . CRT has proven to be extremely beneficial for those who are especially active during the day, and those who often suffer from dry, irritable eyes as a result of wearing typical contact lenses. CRT Lenses are especially helpful for children and young adults, specifically those with still-developing or rapidly changing eyes, and those involved in sports or other strenuous activities.
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Understanding Corneal Refractive Therapy Management
Corneal Refractive Therapy contact lenses are a unique rigid gas permeable design that temporarily corrects nearsightedness by gently reshaping your cornea while you sleep. You may then go throughout the day without wearing contacts or glasses and see great!
How Long Does It Take For Maximum Ortho
This depends on many factors, especially the amount of nearsightedness you have when you begin the ortho-k process.
Some people can have excellent vision after a day or two of overnight ortho-k. But higher prescriptions can take two or more weeks for maximum correction.
Until your eyes are fully corrected, you might notice blurred vision and glare and halos around lights. In some cases, you may need to wear glasses during the ortho-k process.
Also, in some cases, mild glare and halos might persist even after maximum ortho-k correction.
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How Much Does Ortho
Fitting ortho-k lenses is a more time-consuming process and requires more expertise than fitting regular contact lenses. It requires a series of office visits and possibly multiple sets of lenses.
Each eye care practitioner determines his or her own fees for orthokeratology, based in part on the doctor’s level of expertise, the time required, and lens costs.
The cost of ortho-k, including follow-up care associated with fitting the lenses, can vary significantly depending on your current eyesight and whether you are choosing ortho-k lenses for long-term myopia control, in addition to the temporary correction of existing myopia.
Costs also can vary based on the region of the country, urban versus rural settings, and the type of practice where you have the procedure performed.
Ortho-k prices in the U.S. generally range from $1,000 to $2,000 , making the procedure about half the cost of LASIK. But particularly difficult cases of ortho-k can cost as much as $4,000.
There are additional costs for replacement ortho-k lenses, lens care solutions and follow-up exams, which can total about $300 to $500 per year.
Normally, orthokeratology is not covered completely by vision care insurance plans, but a portion of the fees may be covered by some plans.
What Should I Expect From The Results

Most patients experience rapid improvement in the first few days of treatment and achieve nearly their optimum vision within 10-14 days. A small percentage of patients will need additional correction to function under all conditions.
CRT is temporary. If you stop wearing the lenses while you sleep, your lens-free vision will return to its original state within a few days.
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What Conditions Does It Treat
Most commonly, corneal refractive therapy it is used to treat myopia and is especially effective in solving the condition in children. It can also be used to solve refractive errors like astigmatism hyperopia and myopia. Most people are able to achieve 20/20 vision through this procedure.
Even if you suffer from extremely poor vision, you will be able to achieve at least 20/40 vision which is the normal standard limit for legally driving without glasses.
Corneal Refractive Therapy And Myopia Control
Holly discusses Corneal Refractive Therapy
Corneal molding, or CRT, is a method used to correct or slow the progression of myopia by wearing special hard contact lenses that reshape your eyes overnight, allowing you to be free of glasses or contact lenses during day. While success rates for CRT are generally higher for more mild vision prescriptions, stronger prescriptions can also be corrected. According to FDA trials conducted on CRT lenses, more than 65% of CRT patients were provided with 20/20 visual acuity. A whopping number of more than 90% of CRT patients achieved 20/40 vision or better .
The process is quite simple. The CRT molds are inserted at bedtime and worn as you sleep. Throughout the night, the lenses gently reshape your cornea so that your vision is clear the following morning. The correction is temporary, so in order to maintain sharp visual acuity on a daily basis, you need to wear the CRT reshaping lenses every night.
CRT is very suitable for nearsighted people who are not appropriate candidates for vision correction surgery, such as children. Individuals of all ages with healthy eyes can try CRT. People who require vision correction and engage regularly in sports or work in extremely dusty, dirty environments will also appreciate the convenience of CRT.
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The Benefits Are High
Corneal Refractive Therapy offers a large number of benefits to the patients who participate. Benefits include:
- Achieving optimum vision in less than 2 weeks
- CRT contact lenses last 2-3 years
- Lenses are easy to care for
- CRT costs about the same amount as getting braces
- Easily discontinued
- Increased confidence from no longer needing glasses
How Soon Can You Expect To See Results
Once wearing your CRT lenses, you may begin to see results in the clarity of your vision just a couple of days. More typically, a trial period of 2 weeks is suggested before you begin to see the full effects for vision clarity. While you may experience vision clarity for two days or more after a night wearing the lenses, its recommended you wear your CRT lenses every night for the best results. FDA run trials showed 65% of test subjects experiencing total, 20/20 vision clarity, with 90% of test subjects experiencing at least 20/40 vision acuity.
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Talk To An Eye Doctor Near Natomas About Crt
If you need an eye doctor near Natomas who can provide you with clear, lens-free daytime vision without undergoing LASIK surgery, it’s time you talked to either optometrist at our clinic, Dr. Holmberg or Dr. Patel. Call today to learn more about CRT and contact us schedule an evaluation at Arena Eye Care Optometry!
Corneal Refractive Therapy Crt
At North Shore Eye Health and Wellness, we primarily use a tried and true method, Corneal Refractive Therapy sometimes called, Orthokeratology, to slow down the progression of myopia in children. Using this method, we fit a specialty contact lens mold on the cornea, to gently flatten the front surface of the eye — like braces or a retainer! This lens is worn only at night while you sleep. In the morning, the mold is removed and you see 20/20 without glasses or contacts all day long.
This custom treatment is excellent for myopia control and can be fit at any age. Further, it can also be very useful as an alternative to LASIK and is great for active patients, athletes, and those who cannot wear contact lenses. For more information on Corneal Refractive Therapy, go to our CRT page, here!
Lastly, it is important to know that the science of Myopia control is relatively new. There are many ways that we are looking at to slow down myopia progression. The technology we use in our clinic, CRT, has demonstrated a significant reduction in myopia progression through recent studies. For your reference we have included a few abstracts below:
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How Does Corneal Refractive Therapy Work
Corneal Refractive Therapy works by changing the shape of the cornea so that it is able to refract the light correctly onto the retina and the patient can enjoy clear vision. This is achieved using special contact lenses, which are designed specifically for your eyes and which are worn overnight. While you sleep, the slight pressure that they place onto the eyes, combined with tear film flow, helps to reshape the cornea. However, the cornea is able to retain this shape for some time after the lenses are removed. CRT is progressive, meaning that you need to wear the lenses overnight consistently to achieve the optimal result. You may be able to see an improvement in your vision for a few hours after just one session of wearing them, but your vision will quickly deteriorate as your eye loses the new shape. However, with consistent use, at optimal level patients may be able to achieve and maintain clear vision for as long as 48 hours at a time without glasses or contact lenses. CRT isnt permanent, meaning that if you cease treatment, your vision will return to normal fairly quickly.
Is Crt Safe Reversible

Paragon CRT Lenses have been FDA approved since 2002, and have become a widely accepted and leading alternative to LASIK. The temporary nature of the benefits CRT lenses bring means there is minimal risk involved. Your corneas and eyes will return to normal shortly after you stop wearing the lenses.
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Crt Is Not A Permanent Fix
The fact that CRT is not permanent could be a pro for some and a con for others. If you decide that CRT isnt for you, you can stop the therapy and return to wearing glasses and contacts. Once you stop wearing CRT lenses regularly, your vision will return to its original state in about 72 hours.
If you decide to discontinue CRT, you could choose to pursue a permanent solution like LASIK surgery. Some people are put off by the idea of a permanent surgery because if anything goes wrong, the mistakes are permanent too.
News And Advice On Myopia And General Eye Care For Patients And Professionals
Paragon VisionAugust 06, 2019Nearsighted,CRT Lenses,Contact Lenses,Orthokeratology,Myopia,Ortho-K,corneal refractive therapy,CRT
When it comes to treating nearsightedness, most people think of corrective lenses such as glasses or conventional daytime contacts. Some may even think of LASIK surgery. What people dont always know, is that there are more options for treating this vision condition. In fact, there are some treatment options, such as corneal refractive therapy, that utilizes overnight contact lenses to reshape the cornea, leaving your vision clear and you glasses and daytime contacts free all day long.
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Who Is Eligible For Corneal Refractive Therapy
CRT is designed for individuals with low to moderate myopia with or without astigmatism . At the present time, hyperopia is not correctable with CRT. Also, CRT does not correct for presbyopia . Each individual’s eyes have differences in physiology and visual requirements. Therefore, the decision for corneal refractive therapy, at any age, can only be made after a thorough eye exam and the recommendation of your eye doctor.
Myopia Control And Corneal Refractive Therapy
Do you or your child have trouble seeing things far away? When youre looking at road signs, do you sometimes find yourself squinting? Is your childs vision changing rapidly? You or your child may have myopia, otherwise known as nearsightedness. Corneal Refractive Therapy can help with myopia control in both children and adults alike.
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Frequently Asked Questions About Corneal Refractive Therapy
Paragon CRT is a specially designed oxygen permeable therapeutic contact lens used in Corneal Refractive Therapy.Corneal Refractive Therapy is a sophisticated non-surgical process that temporarily re-shapes the cornea while you sleep. You remove the lenses when you awake and are able to go throughout the day without any other vision correction.The idea of contact lens corneal reshaping is not a new concept. Previous corneal reshaping designs were only as successful as technology allowed. Paragon Vision Sciences has taken the recent advancements in computerized corneal mapping, computerized manufacturing, and oxygen permeable contact lens materials to produce a therapeutic contact lens design that is like no other. This has allowed Paragon CRT to become the one corneal reshaping modality that truly stands out and the first to earn FDA approval for nighttime Corneal Refractive Therapy.
No. Its temporary. If you stop wearing the lenses regularly while you sleep, your vision will return to its original state in as little as 72 hours.
Paragon CRT treats nearsightedness with or without minor corneal astigmatism . And because there are no age restrictions on Paragon CRT, it may be the perfect option for any member of the family including active adolescents. The doctor will provide more information about Paragon CRT to see if it is right for you.