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Paragon CRT Ortho-K | FDA-Approved Overnight Vision Correction in Orange County in Orange County

FDA-approved overnight orthokeratology lenses for temporary myopia correction and off-label myopia management in children.

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Medically reviewed by Dr. Alexander Bonakdar, O.D. · Updated April 2026

Understanding Paragon CRT

About Paragon CRT

Paragon CRT (Corneal Refractive Therapy) is the most recognized orthokeratology brand worldwide, with over 3 million patients fitted. FDA-approved (PMA) since 2002 for temporary myopia correction, these custom gas-permeable lenses are worn overnight to gently reshape the cornea while you sleep. Wake up, remove the lenses, and see clearly all day without glasses or contacts. While FDA-approved for vision correction, Paragon CRT is also widely used off-label for myopia management in children — orthokeratology as a class has shown 30-60% slowing of axial elongation across multiple randomized trials.

Benefits of Paragon CRT Treatment

  • Glasses-free and contact-free daytime vision
  • FDA-approved since 2002 — longest track record of any ortho-k brand
  • Reversible — stop wearing and cornea returns to original shape
  • No daytime lens wear for sports, swimming, dusty environments
  • Off-label myopia management: 30-60% slower axial elongation (ortho-k class evidence)

The Paragon CRT Process

1

Comprehensive Evaluation

Corneal topography, refraction, and candidacy assessment for ortho-k.

45-60 minutes
2

Custom Lens Design & Fitting

Your CRT lenses are custom-designed from topography maps and verified with trial lenses.

30-45 minutes
3

Overnight Trial & Follow-up

First overnight wear followed by morning assessment to verify corneal reshaping.

15-20 minutes

Is Paragon CRT Right for You?

Candidacy overview for Paragon CRT

Good Candidates

  • ✓Myopia up to -6.00 diopters
  • ✓Astigmatism up to -1.75 diopters
  • ✓Children and adults who want freedom from daytime correction
  • ✓Active individuals, athletes, swimmers

May Need Evaluation

  • !Very high myopia (above -6.00 D)
  • !High astigmatism (above -1.75 D)
  • !Those unable to commit to nightly lens wear

Common Questions About Paragon CRT

Paragon CRT costs are part of our ortho-k program, which runs $2,000-$4,500 depending on prescription complexity. This typically covers the custom lenses, fitting, and first-year follow-up visits. Replacement lenses are $600-$800 per pair. See our detailed ortho-k cost page for the full breakdown.
Both are FDA-approved ortho-k lenses worn overnight. Paragon CRT has been available since 2002 with the longest track record. Abiliti Overnight (J&J/Menicon, FDA-approved May 2021) is specifically labeled for myopia management and has a specialized astigmatism design. We fit both and recommend based on your prescription and goals.
Yes. Orthokeratology has been used in children for decades with an excellent safety record when lens hygiene protocols are followed. The most important safety factor is consistent cleaning — we train every patient and parent thoroughly on the overnight care routine.
Most patients achieve clear vision lasting the full waking day (16+ hours) after the first week of wear. Some higher prescriptions may notice slight blur by late evening initially. Consistent nightly wear provides the most stable daytime correction.

Schedule Your Consultation

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Cost & Insurance

Typical Cost Range

$2,000 - $4,500

Insurance Coverage

Some vision plans cover a portion of ortho-k fitting. Medical insurance may cover the diagnostic evaluation. FSA/HSA eligible.

Financing Available

CareCredit and Alphaeon Credit available. See our ortho-k cost page for full pricing breakdown.

Apply for CareCredit

*Costs vary based on individual needs. Contact us for a personalized quote.

Related Services

Last reviewed: July 14, 2026

Medical content is reviewed regularly to ensure accuracy and reflect current best practices.

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Conveniently located in Orange County

Same-Day Appointments

Often available

Convenient Location

Santa Ana, CA

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Most insurance plans accepted • We don't take Medi-Cal • Flexible financing available

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Medical Disclaimer

The information provided on this page is for educational and informational purposes only and is not intended as a substitute for professional medical advice, diagnosis, or treatment.

Always seek the advice of your eye care professional or other qualified health provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read on this website.

Individual results may vary. The information on this site does not establish a doctor-patient relationship.

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