How Does CRT Work?
Nearsightedness occurs when the eye lengthens, causing the light entering the eye to focus in front of the retina rather than directly onto it, making distant objects blurry. When worn overnight, Paragon CRT® Brand Contact Lenses gently and safely flatten the front surface of the cornea, resulting in a corneal shape that focuses light correctly onto the retina. When removed in the morning, distant objects will be back into focus.
The goal is to correct your vision to 20/20 without wearing eyeglasses or contact lenses during the day. In the FDA trials for Paragon CRT® Brand Contact Lenses, more than 65% of patients were able to achieve 20/20 vision after wearing the reshaping lenses overnight and more than 90% were able to see 20/40 or better (the legal vision requirement for driving without glasses in most states).
Nearsightedness occurs when the eye lengthens, causing the light entering the eye to focus in front of the retina rather than directly onto it, making distant objects blurry. When worn overnight, Paragon CRT® Brand Contact Lenses gently and safely flatten the front surface of the cornea, resulting in a corneal shape that focuses light correctly onto the retina. When removed in the morning, distant objects will be back into focus.
The goal is to correct your vision to 20/20 without wearing eyeglasses or contact lenses during the day. In the FDA trials for Paragon CRT® Brand Contact Lenses, more than 65% of patients were able to achieve 20/20 vision after wearing the reshaping lenses overnight and more than 90% were able to see 20/40 or better (the legal vision requirement for driving without glasses in most states).
Benefits of CRT
Wearing Paragon CRT® Brand Contact Lenses while sleeping gives you freedom from wearing daytime contacts or glasses. No more dry, itchy and uncomfortable contact lenses. No hassles and interference of wearing glasses either – just great vision. You, or your child, no longer have to worry about torn lenses, broken frames or contact lens-induced dry eye. Your teen will have confidence knowing they look their best and have great vision throughout school and activities.
Wearing Paragon CRT® Brand Contact Lenses while sleeping gives you freedom from wearing daytime contacts or glasses. No more dry, itchy and uncomfortable contact lenses. No hassles and interference of wearing glasses either – just great vision. You, or your child, no longer have to worry about torn lenses, broken frames or contact lens-induced dry eye. Your teen will have confidence knowing they look their best and have great vision throughout school and activities.
Research and Clinical Studies
Doctors discovered the reshaping phenomena of glass lenses in the 1940s, which led to research in Orthokeratology and the use of contact lenses for myopia reduction. This led to early designs in the 1960s that had generally unpredictable results, leading researchers to believe that applied Orthokeratology was more art than science.
However, when computerized corneal topography became available during the 1990s, it became possible to create designs with repeatable results. Additionally, the development of new base materials for rigid gas permeable lenses allowed Orthokeratology to become an overnight procedure rather than for daytime wear only. Finally, the introduction of computer-controlled precision lathes meant that lens designs could be manufactured to sub-micrometer levels of accuracy. In June 2002, the FDA granted approval for overnight wear of a type of corneal reshaping called “Corneal Refractive Therapy” (CRT).
While traditional glasses and contact lenses offer vision correction options, they also create distortions, reflections and blur from contaminated lens surfaces. Paragon CRT® Brand Contact Lenses offers a much more natural vision as no lens is being worn during your daytime hours. You will no longer be distracted from glare caused by dirty, scratched eyeglass lenses or variable vision caused by dry, dirty contact lenses. In addition, unlike refractive surgery, the effect is temporary and can be adjusted to reflect changes in your eyesight.
Since 2002, thousands of users worldwide have enjoyed the benefits of wearing their Paragon CRT® Brand Contact Lenses. Here are some examples of the benefits they have experienced in their daily lives and have shared with us over the years:
For Children
For Teens
For Athletes
For Adults
If you would like more information, please visit - aaomc.org/faq-for-patients/
Doctors discovered the reshaping phenomena of glass lenses in the 1940s, which led to research in Orthokeratology and the use of contact lenses for myopia reduction. This led to early designs in the 1960s that had generally unpredictable results, leading researchers to believe that applied Orthokeratology was more art than science.
However, when computerized corneal topography became available during the 1990s, it became possible to create designs with repeatable results. Additionally, the development of new base materials for rigid gas permeable lenses allowed Orthokeratology to become an overnight procedure rather than for daytime wear only. Finally, the introduction of computer-controlled precision lathes meant that lens designs could be manufactured to sub-micrometer levels of accuracy. In June 2002, the FDA granted approval for overnight wear of a type of corneal reshaping called “Corneal Refractive Therapy” (CRT).
While traditional glasses and contact lenses offer vision correction options, they also create distortions, reflections and blur from contaminated lens surfaces. Paragon CRT® Brand Contact Lenses offers a much more natural vision as no lens is being worn during your daytime hours. You will no longer be distracted from glare caused by dirty, scratched eyeglass lenses or variable vision caused by dry, dirty contact lenses. In addition, unlike refractive surgery, the effect is temporary and can be adjusted to reflect changes in your eyesight.
Since 2002, thousands of users worldwide have enjoyed the benefits of wearing their Paragon CRT® Brand Contact Lenses. Here are some examples of the benefits they have experienced in their daily lives and have shared with us over the years:
- Children and adults can benefit.
- Can be prescribed for a child who can wear contact lenses.
- Can be modified if nearsighted prescriptions change over the years.
- Provides freedom from glasses and contact lenses for recreation, swimming, beach, sports and leisure.
- Rapid vision improvement.
- Free from surgical risk, the CRT process is convenient and comfortable.
- Corneal refractive therapy is safe, effective and reversible.
For Children
- No age restriction.
- No more broken glasses or scratched lenses.
- No more losing or tearing a contact lens.
- No more sore eyes after a day of school.
- Potential to stop the progression of nearsightedness.
- Flexible and reversible.
For Teens
- No age restriction.
- No more hauling your glasses or contact lenses everywhere you go.
- Ability to see to put on makeup and get ready without glasses.
- Ability to play sports without glasses that are foggy or splattered with mud or perspiration.
- Flexible and reversible.
For Athletes
- Clear unaided vision during activities.
- Unobstructed field of view and total peripheral vision without interference from glasses.
- No more spectacles that steam up from perspiration or become foggy.
- No irritation caused by contact lenses.
- No need to bring spare contacts and contact lens solutions to practice and game days.
- No worrying about potential complications of refractive surgery, which could adversely affect athletic performance for a lifetime.
- They also provide more stable vision during quick head and body movements.
For Adults
- For those who experience irritation or dry eyes with daytime soft contact lenses.
- For those who work in dusty or dry environments.
- Pilots, police, firefighters, swimmers and others may now meet occupational demands for unaided vision.
- For those who demand optimal vision for their profession such as surgeons, doctors and dentists.
If you would like more information, please visit - aaomc.org/faq-for-patients/
