Reshaping Vision
Worldwide


Improve your vision while you sleep
with safe, non-surgical, FDA Approved

Contex OK® Lenses.

Enjoy better vision all day without
glasses or daytime contact lenses.

 

Imagine...

being able to Golf, Swim, Bike, or Jog without the hassle of glasses or the worry of losing a contact lens.

Sleep...your way to better vision!

Introducing the
Contex OK® Lens

The Contex OK® Lens is an FDA approved myopia management treatment that offers patients a safe and comfortable vision correction alternative to Laser surgery. The OK® Lens corrects your vision while you sleep. The result is crisp, clear, vision all day long without the need for glasses or daytime contact lenses.

Why choose the OK® Lens?

The Contex OK® Lens is the first lens of its kind. Contex developed the original patented OK® Lens back in 1986 and received the first ever FDA approval for orthokeratology in 1995. Over the years we've continued our research and development to include the premier myopia management lens design.

Contex OK® Lens on the Eye

What is Orthokeratology?

Orthokeratology, or Ortho-k, uses specially designed, gas-permeable contact lenses worn overnight (like the Contex OK® Lens) to reshape the cornea and temporarily correct vision, primarily nearsightedness and astigmatism. The lenses are removed in the morning, providing clear vision throughout the day without glasses or daytime contacts.

Is the OK® Lens for me?

If you are nearsighted or have astigmatism and would enjoy clear vision without glasses or daytime contacts without the risks of surgery, then the OK® Lens could be right for you. With a normal eye exam your eye doctor can determine if you are a candidate.

Are there other Contex lens designs available?

Besides OK® Lenses, Contex offers lens designs for many various eye conditions. As we age, our eyes change. See below to learn more about age specific options for the various visual conditions.

Age Specific Options

Children

As children's eyes develop they can begin to experience visual problems that can lead to difficulty in reading and school work. Identifying these problems at a young age is important. As your child begins to use their vision for things such as doing puzzles or reading books, you should evaluate their ability to see and identify objects clearly. As your child gets older and enters adolescence their eyes continue to change. There are various eye conditions that may develop and various ways to treat them.

Teens

As adolescents' eyes develop they can begin to experience visual conditions that may lead to difficulty in reading and school work. Identifying these problems quickly is very important. As your child enters their adolescent years their eyes can change. There are various eye conditions that may develop and various ways to treat them.

20's and 30's

As you enter the work force you depend on good vision for almost everything you do, including activities outside of work. There are various eye conditions and various ways to treat them.

40's and 50's

You depend on good vision for almost everything you do. As we near our 40’s our eyes can change in many ways and there are various ways to treat each visual condition.

60's and Up

For most of us, by this time in our lives we have experienced some sort of visual condition that has compromised our vision. However, there is no reason why you cannot continue to enjoy good vision. You depend on good vision for almost everything you do.

Contex OK® Lens FAQs

OK® lenses are made of a material that allows oxygen to reach the eye, even while you sleep. That’s why OK® lenses are approved for overnight wear. Plus, Contex OK® lenses were developed by the company that invented the first lens of this type back in 1985.

Yes. In many cases you’ll barely feel them working. And because you only wear them while you sleep, you minimize discomfort associated with daytime contact lens wear. No more dryness and such at the end of the day.

The treatment results are different for everyone. But if you wear your OK® lenses as prescribed, you should get a full day of improved vision.

Yes. OK® lenses work like normal contact lenses, but as you sleep they’ll gently shape your eye so you can enjoy good vision with or without your lenses.

OK® lenses can be worn during the day, but you should follow the schedule recommended by your Contex OK® Lens specialist.

OK® Lenses are easier to care for than most soft contact lenses. Simply clean and disinfect them daily, then store them in their case. Because you wear them while you sleep, there is no maintenance during the day and you don’t have to carry lens cases or solutions with you.

For optimal results, use Boston Simplus™ Multi-Action Solution, from Bausch & Lomb, a one-bottle lens care system that includes a daily protein remover.

More Info

All About Gas Permeable Lenses

According to the CDC, more than 45 million Americans wear contact lenses, yet many people are still unfamiliar with Gas Permeable contact lenses.

Care and Handling of GP Lenses

When cared for properly, gas permeable contact lenses can provide a healthy, comfortable and convenient vision correction option.  Whether you are new to contact lenses or have been wearing them for years, the following tips will help you to enjoy the benefits of contact lenses.

GP Lens Insertion and Removal

Inserting and removing your Contex lenses is easy. After a few tries, you should easily be able to insert and remove your lenses. Here are a few suggestions to help.

Tips for Successful Contact Lens Wear

In order to help ensure crisp, clear vision, better eye health and maximum lens wearing comfort, consider these important tips for successful lens wear and care.

Lens Care Products

Contex has developed, evaluated and selected the best eye care products available.

History of Contact Lenses

1508 Leonardo da Vinci illustrates the concept of contact lenses

1823 British astronomer Sir John Herschel conceptualizes practical lens design

Contact Us

Phone

(800) 626-6839

Address

Contex, Inc.
4505 Van Nuys Blvd
Sherman Oaks, CA 91403
USA

Working Hours

Mon - Fri 8:30am - 4:30pm
Sat - Sun Closed

© Copyright 2025 Contex, Inc. All Rights Reserved.