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The Corneal Refractive Therapy Candidate

  • The FDA has approved CRT for people with up to six diopters of myopia (-6.00 on your prescription); you may also have up to -1.75 diopters of astigmatism. The CRT procedures can be performed on practically anyone of any age, with healthy eyes.
  • CRT is for people of any age who are nearsighted.
  • Paragon CRT is the first therapeutic lens design Approved by the FDA for overnight contact lens Corneal Refractive Therapy for the temporary reduction of myopia
  • The FDA placed no age restrictions on candidates for Corneal Refractive Therapy with Paragon CRT. CRT is being successfully performed on children 12 years old & younger.
  • CRT is a great option for children and teens that are active in sports activities or any other extra curricular activities.



  • Not everyone can wear Paragon CRT. Paragon CRT therapeutic lenses are not yet available for those who require reading glasses or bifocals (presbyopia). You may be fitted in a monovision mode (one eye corrected for near vision and one corrected for distance vision). You might still need reading glasses. However, since there are many variations in patient physiology and visual needs, the decision for CRT, at any age, can only be made after a thorough eye exam by us. At this time, farsightedness (hyperopia) is not correctable with CRT.