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What is Orthokeratology aka CRT?

CRT stands for “Corneal Refractive Therapy”.  CRT lenses were FDA approved in June 2002 and hundreds of thousands of people, worldwide, are enjoying them. This therapeutic contact lens gently and safely reshapes the cornea while you sleep to correct nearsightedness (myopia). Most commonly referred to as “Corneal Reshaping”, CRT offers a safe, non-invasive, non-surgical procedure that temporarily corrects nearsightedness up to -6.00 diopters, and mild amounts of astigmatism.



CRT Brand Contact Lenses provide great, device-free vision during the day to improve your quality of life at home, at school, at work and at play!
If you’re tired of the hassles and discomfort of daytime contacts or glasses, or you’re unsure of eye surgery, CRT Brand Contact Lenses may be a perfect option to correct your nearsightedness – while you sleep!

Wearing CRT lenses gives you freedom from the discomfort of wearing daytime contacts. A great solution to wearing daytime contact lenses and suffering with dry, itchy and uncomfortable eyes is simply not wearing contacts during your waking hours! An easy way to escape the hassles and interference of wearing glasses is not wearing them either.

Imagine putting your lenses on before bedtime, removing them when you wake up and enjoying great vision during your day, while not wearing daytime contacts or glasses.

…..And here’s another benefit of CRT brand lenses….you can see with them on and off! No more fumbling for your glasses if you need to tend to the baby in the middle of the night or if you have an emergency. You’ll see clearly the moment you open your eyes.
Imagine jogging, swimming, skiing, gardening, golfing, driving in a convertible with the top down and not worrying about drying out your daytime contacts or fogging your glasses. The possibilities with CRT Brand Contact Lenses are endless!

CRT Brand Contact Lenses are FDA approved for overnight wear and are manufactured with a special contact lens material that provides exceptionally high levels of oxygen to get to your eyes while you sleep. This oxygen supports good eye health. In fact, the lens material used to manufacture CRT lenses was developed with information gleaned from three NASA Space Shuttle missions.

Check out our ORTHO-K video Here!

Dr. Hayden has over 20 years experience in hard to fit contact lenses.  He has used the same type of gas permeable lens material to correct the vision of many patients with issues such as  ocular surface disease and keratoconus. So when it came to fitting the CRT lenses, it was a perfect fit.  Our office has had  great success in fitting the CRT lenses.