Call Today: 604-433-4280
474-4800 Kingsway Burnaby, BC V5H 4J2 Get Directions

What Is Orthokeratology?

Orthokeratology (Ortho-K) is a non-surgical process clinically developed to reshape the cornea while you sleep. The result is temporary correction of myopia with or without moderate astigmatism.

Similar in appearance to standard contact lenses, Ortho-K therapeutic lenses gently reshape the corneal surface during sleep to provide clear, natural vision when lenses are removed upon waking.

Ortho-K lenses offer freedom from glasses and hassle associated with traditional contact lenses worn during the day. As a result this leading edge technology enhances the lifestyle of those requiring vision corrections.

Active individuals can freely participate in sports without interference from glasses or bothersome contacts. Eye irritation and dryness, sometimes associated with contact lens wear due to outside dust and pollutants, are also eliminated.


Is Ortho-K Right for You?

If you answer YES to any of the questions below then Ortho-K may be exactly what you’re

looking for.

  • Do you wear glasses or contact lenses for astigmatism, near or farsightedness?
  • Are you interested in LASIK but not quite ready?
  • Are you unable to wear contacts due to allergies or other sensitivities?
  • Are you tired of getting debris getting under gas permeable lenses?
  • Do you feel that contacts inhibit your ability to enjoy sports, working out, hiking swimming or skiing?
  • Do your child’s eyes require a strong eyeglass prescription every year?
  • Does your child need contacts but has trouble wearing and caring for them?
  • Do you want to wake up at night and be able to see?

Frequently Asked Questions

Am I a candidate if:

I wear bifocals, reading glasses or progressive lenses?

Yes, if you are over 40 your reading correction may be addressed with Hyperopic/Presbyopic, Myoptic/Presbyopic or monovision Ortho-K.

I suffer from dry eyes?

Yes, dry eyes are usually not a problem. Ortho-K lenses are only worn while you sleep. If dry eyes are a problem while you sleep, dry eye treatment (including the OAA’s approved homeopathic eye drops) is a simple solution. Orthokeratology can provide those unable to wear conventional contact lenses due to dry eyes with excellent vision with no compromise to their comfort.

I used to wear contact lenses but stopped due to discomfort?

Yes, your corneal reshaping lenses are only worn at night while you sleep. This greatly reduces any discomfort you may have experienced while wearing contact lenses during the day.

Is age a factor?

No. Unlike the age limits imposed on refractive surgery, orthokeratology can fit young children. There is also no upper age limit.

How long will it take to achieve great vision?

This depends on your prescription, age and treatment goals. Some patients are seeing clearly in as little as one night of retainer lens wear. Others such as adults with higher prescriptions can take 2 – 4 weeks to achieve good vision while children’s eyes are much more easily moulded.

Is the vision improvement permanent?

Patients that wear their lenses as prescribed find that they have great vision well into the evening. Some patients are even able to wear their lenses every other night and still maintain their enhanced vision; however, if you stop wearing your lenses while sleeping your vision will return to its original state.

Can I see while wearing my Ortho-K retainer lenses?

Yes. The retainer lenses allow you to read in bed or watch TV before falling asleep.

How successful are retainer moulds?

The rate of success is very high. Your success rate depends on your original prescription and treatment goals. During your initial evaluation, Dr. Wang will give you information about your vision potential.

How safe are the retainer moulds?

They are very safe. Like any contact lenses there is a minimal risk of infection or abnormal blood vessel growth. This risk is further minimized by adhering to scrupulous disinfection and care procedures, by wearing your retainers only as instructed, and by coming in for regular progress checks.

Are they difficult to insert and remove?

Not at all. Your retainers are actually easier to insert and remove than most oxygen permeable lenses and much easier than a soft lens.

How often do my retainer lenses need to be replaced?

Depending on their condition Dr. Wang may recommend replacing your lenses each year. Moulds that have become warped over time may not produce a consistent treatment and can potentially lead to infection or deposit buildup.