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CRT – Corneal Refractive Therapy

Bristol Family Eyecare Offers CRT!

CRT in Austin TXAre you tired of wearing glasses or contact lenses all day? Looking for a non-surgical alternative to LASIK?

CRT, which stands for Corneal Refractive Therapy works by gently reshaping the cornea to improve your vision… And it all happens while you sleep.

Dr. Bristol is a CRT-certified practitioner in Texas.

CRT temporarily corrects myopia and astigmatism overnight. Literally.

Corneal reshaping using contact lenses is not a new concept. If you have heard of Ortho-K, the idea behind Paragon CRT® is based on a similar mechanism. You put the lenses in at night before bed. When you wake up in the morning, you remove the lenses, and your eyesight is great! (Full results are achieved only after about two weeks of nightly wear.) You can see clearly without glasses or contact lenses.

CRT differs from Ortho-K

Unlike Ortho-K, CRT does not require multiple sets of lenses as your vision improves.

With Paragon Vision Sciences’ advanced technology in oxygen permeable contact lens materials, computerized corneal mapping, and computer-assisted manufacturing processes, Corneal Refractive Therapy (CRT) is available as a single lens, and takes less than two weeks to achieve the desired effect: great vision.

Who can benefit from CRT?

Dr. , an eye doctor who provides CRT near Austin, TX in Bee Cave says: the most successful CRT users are patients with mild to moderate myopia. CRT lenses work for people with astigmatism too. Even children can use Corneal Refractive Therapy contact lenses.

Is it SAFE?

CRT lens material allows the eye to breathe, and most users experience no discomfort or negative side effects. The FDA has approved Paragon CRT® for people of all ages.

Is it permanent?

Unlike laser eye surgery, Paragon CRT® is not permanent. If you stop wearing the CRT lenses on a regular basis, your original eyesight will return.

More Info

For more information about CRT, see

Talk to the eye doctors at Bristol Family Eyecare about whether you are a good candidate for Corneal Refractive Therapy.


Due to COVID-19 we are operating on a reduced/modified schedule in a controlled environment to protect our patients and staff. Please read over the following protocol before coming to the office and call or text us: 512-263-3937 if you have any questions. Click here to order contact lenses.